R
P2L-B
Pentium II Motherboard
®
USER’S MANUAL
USER'S NOTICE
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in
any form or by any means, except documentation kept by the purchaser for backup purposes,
without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,
EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF
PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL
OR PRODUCT.
Product warranty or service will not be extended if: (1) the product is repaired, modified or
altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2)
the serial number of the product is defaced or missing.
Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or
explanation and to the owners’ benefit, without intent to infringe.
• Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation.
• IBM and OS/2 are registered trademarks of International Business Machines.
• Symbios is a registered trademark of Symbios Logic Corporation.
• Windows and MS-DOS are registered trademarks of Microsoft Corporation.
• Sound Blaster AWE32 and SB16 are trademarks of Creative Technology Ltd.
• Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
The product name and revision number are both printed on the product itself. Manual revisions are released for each product design represented by the digit before and after the period
of the manual revision number. Manual updates are represented by the third digit in the manual
revision number.
For previous or updated manuals, BIOS, drivers, or product release information, contact ASUS
at http://www.asus.com.tw or through any of the means indicated on the following page.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT
ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR
ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Copyright © 1998 ASUSTeK COMPUTER INC. All Rights Reserved.
Product Name:
Manual Revision:
Release Date:
2
ASUS P2L-B
1.02
February 1998
ASUS P2L-B User’s Manual
ASUS CONTACT INFORMATION
ASUSTeK COMPUTER INC.
Marketing
Address:
Telephone:
Fax:
Email:
150 Li-Te Road, Peitou, Taipei, Taiwan 112
+886-2-2894-3447
+886-2-2894-3449
info@asus.com.tw
Technical Support
Fax:
BBS:
Email:
WWW:
FTP:
+886-2-2895-9254
+886-2-2896-4667
tsd@asus.com.tw
www.asus.com.tw
ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL
Marketing
Address:
Fax:
Email:
6737 Mowry Ave, Mowry Business Center, Building 2,
Newark, CA 94560, USA
+1-510-608-4555
info-usa@asus.com.tw
Technical Support
Fax:
BBS:
Email:
WWW:
FTP:
+1-510-608-4555
+1-510-739-3774
tsd-usa@asus.com.tw
www.asus.com
ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER GmbH
Marketing
Address:
Telephone:
Fax:
Email:
Harkort Str. 25, 40880 Ratingen, BRD, Germany
49-2102-445011
49-2102-442066
info-ger@asus.com.tw
Technical Support
Hotline:
BBS:
Email:
WWW:
FTP:
49-2102-499712
49-2102-448690
tsd-ger@asus.com.tw
www.asuscom.de
ftp.asuscom.de/pub/ASUSCOM
ASUS P2L-B User’s Manual
3
CONTENTS
I. INTRODUCTION ...........................................................................
How this manual is organized ..........................................................
Item Checklist ..................................................................................
II. FEATURES ....................................................................................
Features of the ASUS P2L-B Motherboard .....................................
Introduction to ASUS Smart Series motherboards ...............
Parts of the ASUS P2L-B Motherboard ...........................................
III. INSTALLATION ..........................................................................
ASUS P2L-B Motherboard Layout .................................................
Installation Steps ..............................................................................
1. Jumpers ........................................................................................
Jumper Settings ....................................................................
2. System Memory (DIMM) ...........................................................
DIMM Memory Installation .................................................
3. Central Processing Unit (CPU) ...................................................
Pentium II Processor .............................................................
AAVID Heatsink ..................................................................
Elan Vital Heatsink ...............................................................
4. Expansion Cards ..........................................................................
Expansion Card Installation Procedure ................................
Assigning IRQs for Expansion Cards ...................................
Assigning DMA Channels for ISA Cards .............................
ISA Cards and Hardware Monitor ........................................
5. External Connectors ....................................................................
Power Connection Procedures ...................................................
IV. BIOS SOFTWARE ........................................................................
Support Software .............................................................................
Flash Memory Writer Utility ......................................................
Main Menu ...........................................................................
Advanced Features Menu .....................................................
Managing and Updating Your Motherboard’s BIOS ..................
6. BIOS Setup .................................................................................
Load Defaults .......................................................................
Standard CMOS Setup ...............................................................
Details of Standard CMOS Setup: ........................................
BIOS Features Setup ..................................................................
Details of BIOS Features Setup ............................................
Chipset Features Setup ...............................................................
Details of Chipset Features Setup .........................................
4
ASUS P2L-B User’s Manual
7
7
7
8
8
9
11
12
12
14
14
15
17
18
19
19
23
23
24
24
24
25
25
26
33
34
34
34
34
35
36
37
38
38
38
41
41
44
44
CONTENTS
Power Management Setup ..........................................................
Details of Power Management Setup ...................................
PNP and PCI Setup ....................................................................
Details of PNP and PCI Setup ..............................................
Load BIOS Defaults ...................................................................
Load Setup Defaults ...................................................................
Supervisor Password and User Password ..................................
IDE HDD Auto Detection ..........................................................
Save & Exit Setup ......................................................................
Exit Without Saving ...................................................................
V. SUPPORT SOFTWARE ................................................................
ASUS Smart Motherboard Support CD ...........................................
Desktop Management Interface (DMI) ............................................
Introducing the ASUS DMI Configuration Utility ...............
System Requirements ...........................................................
Using the ASUS DMI Configuration Utility ........................
VI. ASUS PCI SCSI Cards ................................................................
Symbios SCSI BIOS and Drivers ....................................................
ASUS PCI-SC200 & PCI-SC860 SCSI Cards ................................
Setting Up the ASUS PCI-SC200 & PCI-SC860 .......................
Setting the INT Assignment for the ASUS PCI-SC200 .............
Terminator Requirements for SCSI Devices ..............................
Terminator Settings for the ASUS PCI-SC860 ..........................
Terminator Settings for the ASUS PCI-SC200 ..........................
SCSI ID Numbers for SCSI Devices .........................................
SCSI ID Priority .........................................................................
VII. ASUS LAN Card .........................................................................
ASUS PCI-L101 Fast Ethernet Card ...............................................
Features ............................................................................................
Software Driver Support ............................................................
Question and Answer .................................................................
ASUS P2L-B User’s Manual
47
47
50
50
52
52
53
54
55
55
56
56
57
57
57
58
59
59
59
60
60
60
61
61
62
62
63
63
64
64
64
5
FCC & DOC COMPLIANCE
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. Operation is subject to the following
two conditions:
•
•
This device may not cause harmful interference, and
This device must accept any interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with manufacturer’s instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
•
•
•
•
Re-orient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
WARNING! The use of shielded cables for connection of the monitor to the
graphics card is required to assure compliance with FCC regulations. Changes
or modifications to this unit not expressly approved by the party responsible for
compliance could void the user’s authority to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.
6
ASUS P2L-B User’s Manual
I. INTRODUCTION
I. INTRODUCTION
(Sections/Checklist)
How this manual is organized
This manual is divided into the following sections:
I.
II.
III.
IV.
V.
VI.
VII.
Introduction:
Manual information and checklist
Features:
Information and specifications concerning this product
Installation:
Instructions on setting up the motherboard
BIOS Software:
Instructions on setting up the BIOS software
Support Software: Information on the included support software
ASUS SCSI Cards: Installation of ASUS SCSI cards (optional)
ASUS L101 Card: Installation of the ASUS LAN card (optional)
Item Checklist
Please check that your package is complete. If you discover damaged or missing
items, please contact your retailer.
(1) ASUS Motherboard
(1) Retention mechanism & heatsink support
(2) Attach mount bridges (factory installed)
(1) 9pin male serial + 25pin male serial external connector set
(1) 25pin female parallel + 6pin female PS/2 mouse external connector set
(1) IDE ribbon cable for master and slave drives
(1) Floppy ribbon cable for (1) 5.25inch floppy and (2) 3.5inch floppies
(1) bag of spare jumpers
(1) diskette or CD with support drivers and utilities:
• Flash Memory Writer utility to update the onboard programmable BIOS
• LANDesk Client Manager (LDCM) Software
• ASUS PC Probe Utility
• Desktop Management Interface (DMI) utility
• Readme files for descriptions and use of the files
• Technical Support Form
(1) User’s Manual
PS/2 Mouse, Infrared, USB1, and USB2 external connector module (optional)
ASUS PCI-SC200 Fast-SCSI or PCI-SC860 Ultra-Fast SCSI card (optional)
ASUS PCI-L101 Wake-on-LAN 10/100 Ethernet Card (optional)
ASUS P2L-B User’s Manual
7
II. FEATURES
Features of the ASUS P2L-B Motherboard
II. FEATURES
(Features)
The ASUS P2L-B is carefully designed for the demanding PC user who wants many
intelligent features in a small package. This motherboard:
• Intel Chipset: Features Intel’s 440LX AGPset with I/O subsystems.
• Multi-Speed: Supports an Intel Pentium® II processor from 233MHz–333MHz.
• Multi-Cache: Supports a Pentium® II processor with either 512KB, 256KB, or
0KB Pipelined Burst Level 2 cache in the Single Edge Contact (SEC) cartridge.
• Versatile Memory: Is equipped with three DIMM sockets to support 8MB128MB 168-pin 3.3Volt SDRAM/EDO memory modules up to 384MB.
• AGP: Supports an Accelerated Graphics Port card for high performance, component level interconnect targeted at 3D graphical display applications.
• Dual Power Supply: Has both AT and ATX power connectors onboard to support an AT or ATX power supply with soft-on/off features.
• ISA & PCI Expansion: Provides two 16-bit ISA expansion slots and three 32bit PCI expansion slots.
• Wake on LAN: Supports Wake on LAN activity through optional ASUS
PCI-L101 Fast Ethernet card.
• Super Multi-I/O: Provides two high-speed UART compatible serial ports and
one parallel port with EPP and ECP capabilities. UART2 can also be directed
from COM2 to the Infrared Module for wireless connections.
• Desktop Management Interface (DMI): Supports DMI through BIOS which
allows hardware to communicate within a standard protocol creating a higher
level of compatibility. (Requires DMI-enabled components.) (See section V)
• PCI Bus Master IDE: Comes with an onboard PCI Bus Master IDE controller
with two connectors that supports four IDE devices in two channels, supports
PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2, and supports Enhanced
IDE devices such as Tape Backup and CD-ROM drives. Supports two drives of
either 5.25-inch (360KB or 1.2MB) or 3.5-inch (720KB, 1.44MB, or 2.88MB)
disk drives. Supports Japanese “Floppy 3 mode” (3.5-inch disk drive: 1.2MB)
and LS-120 floppy disk drives (3.5-inch disk drive: 120 MB, 1.44MB, 720K).
BIOS supports IDE CD-ROM or SCSI device boot-up.
• Symbios SCSI BIOS: Supports optional ASUS SCSI controller cards through
onboard firmware.
• Easy Installation: Is equipped with BIOS that supports auto detection of hard
drives, PS/2 mouse, and Plug and Play devices to make setup of hard drives,
expansion cards, and other devices virtually automatic.
• Optional PS/2 Mouse, USB, IrDA: Supports an optional cable and bracket set
to mount the connectors to an unused expansion slot on the system chassis. A
second IrDA connector is available for a standard individual infrared cable set.
8
ASUS P2L-B User’s Manual
II. FEATURES
Introduction to ASUS Smart Series motherboards
II. FEATURES
(Smart Series)
Performance
• SDRAM Optimized Performance - ASUS smart series of motherboards support the new generation memory - Synchronous Dynamic Random Access
Memory (SDRAM) which increases the data transfer rate from 264MB/s max
using EDO memory to 528MB/s max using SDRAM.
• Double the IDE Transfer Speed - ASUS smart series of motherboards with
Intel chipsets improves IDE transfer rate using Bus Master UltraDMA/33 IDE
which can handle data transfer up to 33MB/s. The best of all is that this new
technology is compatible with existing ATA-2 IDE specs so there is no need to
upgrade current hard drives or cables.
• Concurrent PCI - Concurrent PCI allows multiple PCI transfers from PCI master
busses to memory to CPU.
• ACPI Ready - ACPI (Advanced Configuration and Power Interface) is also
implemented on all ASUS smart series of motherboards. ACPI provide more
Energy Saving Features for the future operating systems (OS) supporting OS
Direct Power Management (OSPM) functionality. With these features implemented in the OS, PCs can be ready around the clock everyday, yet satisfy all
the energy saving standards. To fully utilize the benefits of ACPI, an ACPIsupported OS such as in the next release of Windows 95 must be used.
• PC ’97 Compliant - Both the BIOS and hardware levels of ASUS smart series
of motherboards meet PC ’97 compliancy. The new PC 97 requirements for
systems and components are based on the following high-level goals: Support
for Plug and Play compatibility and power management for configuring and
managing all system components, and 32-bit device drivers and installation procedures for both Windows 95 and Windows NT.
Intelligence: (with optional Hardware/Thermal Monitor only)
• Fan Status Monitoring and Alarm - To prevent system overheat and system
damage, the CPU fan and system fans can be monitored for RPM and failure.
Each fan can be set for its normal RPM range and alarm thresholds.
• Temperature Monitoring and Alert - To prevent system overheat and system
damage, there are heat sensors to monitor the CPU (the Pentium II processor
requires a special heatsink with a thermal sensor) and system temperatures to
warn of damaging temperatures.
ASUS P2L-B User’s Manual
9
II. FEATURES
•
•
II. FEATURES
(TX97 Series)
•
•
•
•
10
Voltage Monitoring and Alert - System voltage levels are monitored to ensure
stable current to critical motherboard components. Voltage specifications are
more critical for future processors, so monitoring is necessary to ensure proper
system configuration and management.
System Resources Alert - Today’s operating systems such as Windows 95, Windows NT, and OS/2, require much more memory and hard drive space to present
enormous user interfaces and run large applications. The system resource monitor will warn the user before the system resources are used up to prevent possible application crashes. Suggestions will give the user information on managing their limited resources more efficiently.
Auto Fan Off - The system fans will power off automatically even in sleep
mode. This function reduces both energy consumption and system noise, and
is a important feature to implement silent PC systems.
Dual Function Power Button (requires ATX power supply) - The system can
be in one of two states, one is Sleep mode and the other is the Soft-Off mode.
Pushing the power button for less than 4 seconds places the system into Sleep
mode. When the power button is pressed for more than 4 seconds, it enters the
Soft-Off mode.
Remote Ring On (requires ATX power supply and external modem) - This
allows a computer to be turned on remotely through an external modem. With
this benefit on-hand, any user can access vital information from their computer
from anywhere in the world!
Message LED - Chassis LEDs now act as information providers. Through the
way a particular LED illuminates, the user can determine the stage the computer
is in. A simple glimpse provides useful information to the user.
ASUS P2L-B User’s Manual
II. FEATURES
Parts of the ASUS P2L-B Motherboard
Thermal Sensor Super Multi-I/O
PS/2 Mouse, USB, IrDA Serial, Parallel, Floppy
AT Power
Connector
II. FEATURES
(Motherboard Parts)
Hardware Monitor
2 ISA Slots
3 PCI Slots
ATX Power
Connector
AGP Slot
Intel’s 440LX
AGPset
3 DIMM Sockets
SEC CPU Socket
(Slot1)
IDE Connectors
Programmable
Flash ROM
ASUS P2L-B User’s Manual
11
III. INSTALLATION
ASUS P2L-B Motherboard Layout
COM 1
Hardware
Monitor
Super
Multi-I/O
ISA Slot 1
Serial Ports
Keyboard
Power
AT Power Input
Parallel (Printer) Port
COM 2
P9
P8
ATX Power Input
PCI Slot 1
Floppy Drives
Wake
on LAN
RT2
Pentium II Thermal
Sensor Connector
R
AGP Slot
BF0
BF1
BF2
BF3
Panel Connectors IDE LED
Socket 1 (64-bit or 72-bit with ECC) 168-pin DIMM module
Secondary IDE
Primary IDE
ASUS
ASIC
System BIOS
Flash EEPROM
Freq. Ratio
Infrared
Socket 2 (64-bit or 72-bit with ECC) 168-pin DIMM module
CR2032 3V
Lithium Cell
RTC Clear
Socket 3 (64-bit or 72-bit with ECC) 168-pin DIMM module
BIOS Power
Intel
440LX
PCIset
FS0
FS1
FS2
Clock Freq
Chassis
Fan
Row 5 4 3 2 1 0
ASUS P2L-B User’s Manual
Single Edge Contact CPU Slot (Slot 1)
PCI Slot 3
III. INSTALLATION
(Motherboard Layout)
Intel
PIIX4
PCIset
12
Keyboard
Power Fan
PCI Slot 2
ISA Slot 2
Thermal
Sensor
PS/2 Mouse,
USB, IrDA
CPU Fan
III. INSTALLATION
Jumpers
1)
2)
3)
4)
CLRTC
KBPWR
FS0, FS1, FS2
BF0, BF1, BF2, BF3
p. 15
p. 15
p. 16
p. 16
Real Time Clock RAM (Clear Data)
Keyboard Power Up (Enable/Disable)
CPU External Clock (BUS) Frequency Selection
CPU:BUS Frequency Ratio
p. 17
p. 19
p. 24
p. 24
p. 25
168-Pin DIMM Memory Support
Single Edge Contact CPU Support
16-bit ISA Bus Expansion Slots*
32-bit PCI Bus Expansion Slots
Accelerated Graphics Port
Expansion Slots
1)
2)
3)
4)
5)
DIMM Sockets
SEC CPU Slot
ISA Slot 1, 2
PCI Slot 1, 2, 3
AGP
Hardware Monitor
p. 22 Pentium II Processor Thermal Sensor Connector
III. INSTALLATION
(Map of Board)
1) RT2
Connectors
1) KB
2) FLOPPY
3) PRINTER
4) COM1, COM2
5) IDE1, IDE2
6) IDELED
7) FAN
8) W0L_CON
9) MSG.LED (PANEL)
10) SMI (PANEL)
11) PWR SW. (PANEL)
12) RESET (PANEL)
13) PWR.LED (PANEL)
14) KEYLOCK (PANEL)
15) SPEAKER (PANEL)
16) USB/MIR
17) IR
18) ATX POWER
19) AT POWER
p. 26
p. 26
p. 27
p. 27
p. 28
p. 28
p. 27
p. 32
p. 30
p. 30
p. 30
p. 30
p. 30
p. 30
p. 30
p. 31
p. 31
p. 32
p. 32
Keyboard Connector (5-pin Female)
Floppy Drive Connector (34-1pins)
Parallel (Printer) Port Connector (26-1pins)
Serial Port COM1 & COM2 (10-1pins)
Primary / Secondary IDE Connector (40-1pins)
IDE LED Activity Light (2 pins)
Power Supply, Chassis, CPU Fan Power Leads (3 pins)
Wake on LAN Activity Connector (3-pins)
System Message LED (2 pins)
SMI Switch Lead (2 pins)
ATX Power & Soft-Off Switch Lead (2 pins)
Reset Switch Lead (2 pins)
System Power LED Lead (3 pins)
Keyboard Lock Switch Lead (2 pins)
Speaker Output Connector (4 pins)
PS/2 Mouse/USB/IR Combo-Connector (18-1pins)
Second Infrared Port Module Connector (5-pins)
ATX Motherboard Power Connector (20-pins)
AT Motherboard Power Connector (12-pins)
*
The onboard hardware monitor uses the address 290H-297H so legacy ISA cards
must not use this address or else conflicts will occur.
ASUS P2L-B User’s Manual
13
III. INSTALLATION
Installation Steps
Before using your computer, you must complete the following steps:
1.
2.
3.
4.
5.
6.
Set Jumpers on the Motherboard
Install System Memory Modules
Install the Central Processing Unit (CPU)
Install Expansion Cards
Connect Ribbon Cables, Cabinet Wires, and Power Supply
Setup the BIOS Software
1. Jumpers
III. INSTALLATION
(Jumpers)
Several hardware settings are made through the use of jumper caps to connect jumper
pins (JP) on the motherboard. See motherboard layout for locations of jumpers. The
jumper settings will be described numerically, such as [----], [1-2], [2-3] for no connection, connect pins 1&2, and connect pins 2&3 respectively. Pin 1 for our motheror on the left
when holding the motherboard with
boards is always on top
the keyboard connector away from yourself. A “1” is written besides pin 1 on jumpers
with three pins. The jumpers will also be shown graphically such as
to connect
pins 1&2 and
to connect pins 2&3. Jumpers with two pins will be shown as
for Short (On) and
for Open (Off). For manufacturing simplicity, the jumpers may be sharing pins from other groups. Use the diagrams in this manual instead of
following the pin layout on the board. Settings with two jumper numbers require that
both jumpers be moved together. To connect the pins, simply place a plastic jumper
cap over the two pins as diagramed.
Pin 1
Pin 1
WARNING! Computer motherboards, baseboards and components, such as SCSI
cards, contain very delicate Integrated Circuit (IC) chips. To protect them against
damage from static electricity, you should follow some precautions whenever you
work on your computer.
1. Unplug your computer when working on the inside.
2. Use a grounded wrist strap before handling computer components. If you do
not have one, touch both of your hands to a safely grounded object or to a
metal object, such as the power supply case.
3. Hold components by the edges and try not to touch the IC chips, leads or
connectors, or other components.
4. Place components on a grounded antistatic pad or on the bag that came with
the component whenever the components are separated from the system.
14
ASUS P2L-B User’s Manual
III. INSTALLATION
Jumper Settings
1. Real Time Clock (RTC) RAM (CLRTC)
The CMOS RAM is powered by the onboard button cell battery. To clear the
RTC data: (1) Unplug your computer, (2) Short solder points, (3) Turn on your
computer, (4) Hold down <Delete> during bootup and enter BIOS setup to reenter user preferences.
RTC RAM
Clear Data
CLRTC
[short solder points momentarily]
III. INSTALLATION
(Jumpers)
R
CLRTC
P2L-B Clear RTC RAM
2. Keyboard Power Up (KBPWR)
Set this jumper to Enable if you wish to use your keyboard to power up your
system. Requires an ATX power supply that can supply at least 300mAmp on
the +5VSB lead and new BIOS support. The default is set to Disable because
your system will not function without the proper ATX power supply.
Setting
Disable
Enable
KBPWR
[1-2] (default)
[2-3]
R
KBPWR
1 2 3
KBPWR
1 2 3
Disable
(Default)
Enable
P2L-B Keyboard Power Up
ASUS P2L-B User’s Manual
15
III. INSTALLATION
3. CPU External (BUS) Frequency Selection (FS0, FS1, FS2)
These jumpers tell the clock generator what frequency to send to the CPU. These
allow the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock
times the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed).
4. CPU to BUS Frequency Ratio (BF0, BF1, BF2, BF3)
These jumpers set the frequency ratio between the Internal frequency of the CPU
and the External frequency (called the BUS Clock) within the CPU. These must
be set together with the above jumpers CPU External (BUS) Frequency Selection.
1 2 3
BF0
BF1
BF2
BF3
R
1 2 3
1 2 3
1 2 3
1 2 3
BF0
BF0
BF0
BF0
BF1
BF1
BF1
BF1
BF2
BF2
BF2
BF2
BF3
BF3
BF3
BF3
4.0x(4/1)
3.0x(3/1)
3.5x(7/2)
4.5x(9/2)
5.0x(5/1)
III. INSTALLATION
(Jumpers)
CPU Core:Bus Frequency Multiple
1 2 3
FS0
FS1
FS2
1 2 3
60MHz
1 2 3
1 2 3
FS0
FS1
FS2
FS0
FS1
FS2
66MHz
FS0
FS1
FS2
75MHz
83MHz
CPU Bus Frequency
P2L-B CPU Settings
WARNING! Do not overclock your processor. Frequencies above 66MHz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be
stable. Overclocking can cause undue stress on the CPU and motherboard. It
may result in a slower speed or other unpredictable outcomes. The table on the
following page shows the approved CPUs and their settings.
Set the jumpers by the Internal speed of your processor as follows:
CPU Model
Intel Pentium II
Intel Pentium II
Intel Pentium II
Intel Pentium II
Speed
333MHz
300MHz
266MHz
233MHz
F. Ratio
5.0x
4.5x
4.0x
3.5x
BUS F.
66MHz
66MHz
66MHz
66MHz
(BUS Freq.)
FS0 FS1 FS2
[1-2] [1-2] [1-2]
[1-2] [1-2] [1-2]
[1-2] [1-2] [1-2]
[1-2] [1-2] [1-2]
(Freq. Ratio)
BF0 BF1 BF2
[2-3] [1-2] [1-2]
[1-2] [2-3] [1-2]
[2-3] [2-3] [1-2]
[1-2] [1-2] [2-3]
BF3
[2-3]
[2-3]
[2-3]
[2-3]
Intel Pentium II Processor in a SEC Cartridge
(233-333MHz 256/512KB L2 Cache)
NOTE: Voltage Regulator Output Selection (VID) is not needed for the Pentium II
processor because it sends a VID signal directly to the onboard power controller.
16
ASUS P2L-B User’s Manual
III. INSTALLATION
2. System Memory (DIMM)
Only Dual Inline Memory Modules (DIMM’s) can be used with this motherboard.
Three sockets are available for 3.3Volt (power level) Unbuffered Synchronous
DRAMs (SDRAM) or EDO DRAM of either 8, 16, 32, 64, or 128MB to form a
memory size between 8MB to 384MB. One side (with memory chips) of the DIMM
module takes up one Row on the motherboard.
To utilize the chipset’s Error Checking and Correction (ECC) feature, you must use
a DIMM module with 9 chips per side (standard 8 chips/side + 1 ECC chip) which
makes 72bits (opposed to standard 64bits) and make the proper settings in the BIOS
Chipset Features Setup.
IMPORTANT: Memory speed setup is required through "Auto Configuration" in
BIOS Chipset Setup of the BIOS SOFTWARE.
III. INSTALLATION
(Jumpers)
WARNING: Memory modules must have 18 chips or less. Memory modules
with more that 18 chips will cause unstable operation.
Install memory in any combination as follows:
DIMM Location
168-pin DIMM Memory Modules
Total Memory
Socket 1 (Rows 0&1)
SDRAM/EDO 8, 16, 32, 64, 128MB
x1
Socket 2 (Rows 2&3)
SDRAM/EDO 8, 16, 32, 64, 128MB
x1
Socket 3 (Rows 4&5)
SDRAM/EDO 8, 16, 32, 64, 128MB
x1
Total System Memory (Max 384MB) =
ASUS Memory Examples:
ECC EDO DIMM (9 chips)
Non-ECC SDRAM DIMM (8 chips)
General DIMM Notes: (not true for all memory modules)
•
•
•
•
•
Four possible memory chips are supported: EDO or SDRAM with and without ECC.
SDRAM chips are generally thinner with higher pin density than EDO chips.
BIOS shows EDO or SDRAM memory on bootup screen.
8 chip/side modules do not support ECC, only 9 chip/side modules support ECC.
Single sided modules are usually 16 or 64 MB, double sided are usually 8, 32, or 128MB.
ASUS P2L-B User’s Manual
17
III. INSTALLATION
DIMM Memory Installation
Insert the module(s) as shown. Because the number of pins are different on either
side of the breaks, the module will only fit in the orientation as shown. DIMM
modules are longer and have different pin contact on each side and therefore have a
higher pin density. SIMM modules have the same pin contact on both sides.
20 Pins
R
60 Pins
III. INSTALLATION
(System Memory)
88 Pins
Lock
P2L-B 168 Pin DIMM Memory Sockets
The Dual Inline Memory Module (DIMM) must be 3.3V Unbuffered for this motherboard. You can identify the type of DIMM module by the illustration below:
168-Pin DIMM Notch Key Definitions (3.3V)
DRAM Key Position
Unbuffered
RFU
Buffered
Voltage Key Position
Reserved
5.0V
3.3V
The notch on the DIMM module will shift between left, center, or right to identify the
type and also to prevent the wrong type of DIMM to be inserted into the DIMM socket
on the motherboard. Four clock signals are supported on this motherboard. You must
ask your retailer for the specifications before purchasing memory modules.
18
ASUS P2L-B User’s Manual
III. INSTALLATION
3. Central Processing Unit (CPU)
This motherboard provides a Single Edge Contact (SEC) slot for a Pentium II processor packaged in an SEC cartridge.
Pentium II Processor
WARNING! Be sure that sufficient air circulation is available across the
processor’s passive heatsink. Without sufficient circulation, the processor could
overheat and damage both the processor and the motherboard. It is recommended
that you install an auxiliary fan.
III. INSTALLATION
(CPU)
You should check to see that you have the following 9 items. (NOTE: The pictures
in the following pages will have the same item numbers next to them for your reference. The design and color of your items may be slightly different.)
Lock Holes
Captive Nut
(1)
(3)
(2)
Attach Mount Bridges (Items 1,2)
(Factory Installed)
Pentium II Retention Mechanism (Item 3)
(8)
Top Bar (4)
(5)
Pin
Posts
(6)
Base (7)
Larger Fin should
be on the bottom.
Heatsink Support Base/Top Bar (Items 4-7)
Heatsink bottom Groove
for the Support Top Bar
Pentium II Processor Heatsink (Item 8)
Intel Pentium II Processor in a SEC Cartridge
(233-333MHz 256/512KB L2 Cache)
CPU (Item 9)
ASUS P2L-B User’s Manual
19
III. INSTALLATION
The Motherboard As Shipped
Four screws should be showing next to each corner of the SEC CPU Slot using two
attach mount bridges from the underside of the motherboard.
(1)
SEC CPU slot
NOTE: Encircled items are screws
from the mount bridges (1 & 2)
(2)
III. INSTALLATION
(CPU)
Installing the Pentium II Processor:
1. Mount the Pentium II Retention Mechanism: The retention mechanism is
designed to fit into the SEC slot only one way.
TIP: Orient the mechanism’s lock holes toward the motherboard’s chipsets (see
motherboard layout for the location of the Intel chipset).
Be sure to align the notch in the mechanism with the small rib on one side of the
slot and that the mechanism is properly seated on the board. Then, screw the
captive nuts in place.
WARNING! Do not overtighten the captive nuts. Doing so could damage your
motherboard. Tighten captive nuts to no more than 6±1 inch/pound.
Lock holes
(3)
Captive nut
Captive nut
20
ASUS P2L-B User’s Manual
III. INSTALLATION
2. Mount the Heatsink: Place the SEC cartridge face down on a flat surface and lay
the heat sink flush on the back (metal side) of the SEC cartridge. Check the orientation of the heatsink against the pictures. The thicker fin must be orientated
toward the bottom. The top clamp is wider than the bottom clamp so only this
orientation will fit. With a screw driver, push the clamps one at a time into the
SEC cartridge. Be sure that the heatsink is firmly pressed against the SEC cartridge. When correctly installed, no light must be showing through between the
thermal pad of the heatsink and the SEC cartridge.
WARNING! If the heatsink is not mounted tightly against the SEC cartridge,
the CPU will overheat. You may install an auxiliary fan to provide adequate
circulation across the processor’s passive heatsink.
(9)
Push each end of the clamps until they lock
(8)
Lock
Lock
Push Clamp
III. INSTALLATION
(CPU)
(8)
(9)
Push Clamp
The thermal pad & SEC cartridge should not have a gap!
SEC Cartridge with Heatsink (Side View)
SEC Cartridge with Heatsink (Top View)
3. Insert the SEC Cartridge: Push the SEC cartridge’s two locks inward (the
preceding picture shows the locks in the outward position and inward in the
picture below). With the heatsink facing the motherboard’s chipsets, press the
cartridge gently but firmly until it is full inserted.
(9)
(8)
Push lock inward
(3)
ASUS P2L-B User’s Manual
21
III. INSTALLATION
4. Secure the SEC Cartridge: Secure the SEC cartridge in place by pushing the
SEC cartridge locks outward so that the lock shows through the retention
mechanism’s lock holes.
(3)
(3)
(8)
III. INSTALLATION
(CPU)
5. Secure the Heatsink: Install the heatsink support base into the motherboard.
This is not, however, necessary if you use a heatsink with fan (see next page).
The support base is necessary to secure the heatsink (without fan). Secure the
heatsink by sliding the heatsink support top bar into the bottom groove of the
heatsink until it locks into the heatsink support base posts.
(9)
(8)
Heatsink support
top bar (4)
Heatsink support
base post
Heatsink support
base (7)
6. Attach the Thermal Sensor Connector (optional): If you purchased the specially designed fan and thermal monitor heatsink, you can connect the thermal
sensor wire to the motherboard.
RT2
R
P2L-B CPU Thermal Sensor Connector
22
ASUS P2L-B User’s Manual
III. INSTALLATION
The heatsinks shown in this manual are for reference purposes only. The recommended heatsinks for the Pentium II processor are those with three-pin fans that can
be connected to the CPU fan connector on motherboard. These heatsinks have the
added benefits of proper heat dissipation and with the hardware monitor, the ability
to monitor the fan’s RPM and use the alert function through the included LANDesk
Client Manager (LDCM) software.
III. INSTALLATION
(CPU)
AAVID Heatsink
The procedures for installing the AAVID heatsink with fan is similar as that for the
heatsink without a fan. You will not, however, be able to use the heatsink support top
bar because of the fan. The heatsink support top bar will, however, still be included
in the package, in case you use a heatsink without a fan.
Elan Vital Heatsink
The procedures for installing the Elan Vital heatsink with fan is also similar as that for
the heatsink without a fan. The Elan Vital heatsink, however, comes with a lever to
clamp the heatsink into the SEC cartridge. Mount the heatsink in the orientation as
shown then flip the lever from “Unlock” to “Lock.” You will not be able to also use the
heatsink support top bar because of the fan. The heatsink support top bar will, however, still be included in the package, in case you use a heatsink without a fan.
ASUS P2L-B User’s Manual
23
III. INSTALLATION
4. Expansion Cards
WARNING! Unplug your power supply when adding or removing expansion
cards or other system components. Failure to do so may cause severe damage to
both your motherboard and expansion cards.
Expansion Card Installation Procedure
III. INSTALLATION
(Expansion Cards)
1. Read the documentation for your expansion card and make any necessary
hardware or software settings for your expansion card, such as jumpers.
2. Remove your computer system’s cover and the bracket plate on the slot you
intend to use. Keep the bracket for possible future use.
3. Carefully align the card’s connectors and press firmly.
4. Secure the card on the slot with the screw you removed above.
5. Replace the computer system’s cover.
6. Set up the BIOS if necessary
(such as IRQ xx Used By ISA: Yes in PNP AND PCI SETUP)
7. Install the necessary software drivers for your expansion card.
Assigning IRQs for Expansion Cards
Some expansion cards need to use an IRQ to operate. Generally an IRQ must be
exclusively assigned to one use. In a standard design there are 16 IRQs available but
most of them are already in use, leaving 6 IRQs free for expansion cards.
Both ISA and PCI expansion cards may require to use IRQs. System IRQs are available to cards installed in the ISA expansion bus first, then any remaining IRQs are
available to PCI cards. Currently, there are two types of ISA cards. The original ISA
expansion card design, now referred to as legacy ISA cards, requires that you configure the card’s jumpers manually and then install it in any available slot on the ISA
bus. You may use Microsoft Diagnostics (MSD.EXE) utility located in the Windows directory to see a map of your used and free IRQs. If you use Windows 95, the
Resources tab under Device Manager displays the resource settings being used by
a particular device (to gain access, double-click the System icon under the Control
Panel program). Ensure that no two devices share the same IRQs or your computer
will experience problems when those two devices are in use at the same time.
The original ISA expansion card design, now referred to as “Legacy” ISA cards,
requires that you configure the card’s jumpers manually and then install it in any
available slot on the ISA bus. You may use Microsoft’s Diagnostic (MSD.EXE)
utility included in the Windows directory to see a map of your used and free IRQs.
For Windows 95 users, the “Control Panel” icon in “My Computer,” contains a
“System” icon which gives you a “Device Manager” tab. Double clicking on a specific device give you “Resources” tab which shows the Interrupt number and address. Make sure that no two devices use the same IRQs or your computer will
experience problems when those two devices are in use at the same time.
24
ASUS P2L-B User’s Manual
III. INSTALLATION
To simplify this process this motherboard has complied with the Plug and Play (PNP)
specification which was developed to allow automatic system configuration whenever a PNP-compliant card is added to the system. For PNP cards, IRQs are assigned automatically from those available.
If the system has both Legacy and PNP ISA cards installed, IRQs are
assigned to PNP cards from those not used by Legacy cards. The PCI and PNP
configuration of the BIOS setup utility can be used to indicate which IRQs are being
used by Legacy cards. For older Legacy cards that does not work with the BIOS,
you can contact your vendor for an ISA Configuration Utility.
III. INSTALLATION
(DMA Channels)
An IRQ number is automatically assigned to PCI expansion cards after those used
by Legacy and PNP ISA cards. In the PCI bus design, the BIOS automatically
assigns an IRQ to a PCI slot that has a card in it that requires an IRQ. To install a
PCI card, you need to set something called the INT (interrupt) assignment. Since all
the PCI slots on this motherboard use an INTA #, be sure that the jumpers on your
PCI cards are set to INT A.
Assigning DMA Channels for ISA Cards
Some ISA cards, both legacy and PnP, may also need to use a DMA (Direct Memory
Access) channel. DMA assignments for this motherboard are handled the same way
as the IRQ assignment process described earlier. You can select a DMA channel in
the PCI and PnP configuration section of the BIOS Setup utility.
IMPORTANT: To avoid conflicts, reserve the necessary IRQs and DMAs for legacy
ISA cards (under PNP AND PCI SETUP of the BIOS SOFTWARE, choose Yes in IRQ
xx Used By ISA and DMA x Used By ISA for those IRQs and DMAs you want to reserve).
ISA Cards and Hardware Monitor
The onboard hardware monitor uses the address 290H-297H so legacy ISA cards
must not use this address or else conflicts will occur.
Accelerated Graphics Port
This motherboard provides an accelerated graphics port (AGP) slot to support a new
generation of graphics cards with ultra-high memory bandwidth.
R
P2L-B Accelerated Graphics Port (AGP)
ASUS P2L-B User’s Manual
25
III. INSTALLATION
5. External Connectors
WARNING! Some pins are used for connectors or power sources. These are
clearly separated from jumpers in “Map of the ASUS Motherboard.” Placing
jumper caps over these will cause damage to your motherboard.
IMPORTANT: Ribbon cables should always be connected with the red stripe on the
Pin 1 side of the connector. The four corners of the connectors are labeled on the
motherboard. Pin 1 is the side closest to the power connector on hard drives and some
floppy drives. IDE ribbon cable must be less than 18in. (46cm), with the second drive
connector no more than 6in. (15cm) from the first connector.
III. INSTALLATION
(Connectors)
1. Keyboard Connector (KB-PS2KB, 5-pin female)
This connector supports either a standard IBM-compatible, 101/102-key, or 104key keyboard (Windows 95-compatible). Use a PS/2 keyboard adapter in order
to connect a PS/2 keyboard to this AT connector.
R
Keyboard Connector (5-pin female)
This motherboard accepts an AT Keyboard
Connector Plug as shown here.
P2L-B Keyboard Connector
2. Floppy drive connector (FLOPPY, 34-1 pins)
This connector supports the provided floppy drive ribbon cable. After connecting the single end to the board, connect the two plugs on the other end to the
floppy drives. (Pin 5 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 5 plugged).
Pin 1
Floppy Disk Drive Connector
R
P2L-B Floppy Disk Drive Connector
26
ASUS P2L-B User’s Manual
III. INSTALLATION
3. Parallel Printer Connector (PARALLEL, 26-1 pins)
This connector supports the included parallel port ribbon cable with mounting
bracket. Connect the ribbon cable to this connection and mount the bracket to
the case on an open slot. A PS/2 mouse connector is included for the USB/IR/
Mouse onboard connector if the optional USB/MIR connector is not used. You
can make available the parallel port and choose the IRQ through the Onboard
Parallel Port in Chipset Features of the BIOS SOFTWARE. (Pin 26 is removed to prevent inserting in the wrong orientation when using ribbon cables
with pin 26 plugged).
NOTE: Serial printers must be connected to the serial port.
Connect the Red
stripe to Pin 1
R
III. INSTALLATION
(Connectors)
Pin 1
P2L-B Parallel (Printer) Connector
4. Serial Port Connectors (COM1/COM2, two 10-1 pins)
These connectors support the provided serial port ribbon cables with mounting
bracket. Connect the ribbon cables to these connectors and mount the bracket to
the case on an open slot. You can make available the serial port and choose the
IRQ through the Onboard Serial Port in Chipset Features of the BIOS SOFTWARE. (Pin 10 is removed to prevent inserting in the wrong orientation
when using ribbon cables with pin 10 plugged).
COM 1
Pin 1
COM 2
R
Pin 1
P2L-B Serial Port Connectors
ASUS P2L-B User’s Manual
27
III. INSTALLATION
5. Primary / Secondary IDE connectors (IDE, two 40-1 pins)
These connectors support the provided IDE hard disk ribbon cable. After connecting the single end to the board, connect the two plugs at the other end to
your hard disk(s). If you install two hard disks, you must set the second drive to
Slave mode. Refer to the documentation of your hard disk for the jumper settings. BIOS now supports SCSI device or IDE CD-ROM bootup (see HDD Sequence SCSI/IDE First & Boot Sequence in the BIOS Features Setup of the
BIOS SOFTWARE) (Pin 20 is removed to prevent inserting in the wrong
orientation when using ribbon cables with pin 20 plugged).
Pin 1
R
III. INSTALLATION
(Connectors)
Secondary IDE Connector
Primary IDE Connector
P2L-B IDE Connectors
TIP: You may configure two hard disks to be both Masters using one ribbon
cable on the primary IDE connector and another ribbon cable on the secondary
IDE connector. You may install one operating system on an IDE drive and
another on a SCSI drive and select the boot disk through BIOS Features Setup.
6. IDE activity LED (IDE LED, 2 pins)
This connector supplies power to the cabinet’s IDE activity LED. Read and
write activity by devices connected to the Primary or Secondary IDE connectors
will cause the LED to light up.
TIP: If the case-mounted LED does not light,
try reversing the 2-pin plug.
R
IDE_LED
P2L-B IDE Activity LED
28
ASUS P2L-B User’s Manual
III. INSTALLATION
7. CPU Cooling Fan Connectors (FAN, 3-pins)
This connector supports a 3-pin CPU cooling fan of 500mAMP (6WATT) or
less with a minimum of 3,500RPM. Depending on the fan manufacturer, the
wiring and plug may be different. The red wire should be Positive, the black
should be Ground, and the yellow wire should be Rotation signal.
WARNING! The CPU and/or motherboard will overheat if there is no airflow
across the CPU. Damage may occur to the motherboard and/or the CPU fan if
these pins are incorrectly used. These are not jumpers, do not place jumper
caps over these pins.
Rotation
+12V
GND
Power Supply Fan
R
GND
+12V
Rotation
Rotation
+12V
GND
III. INSTALLATION
(Connectors)
CPU Fan Power
Chassis Fan Power
P2L-B 12Volt Cooling Fan Power
8. Wake on LAN Activity Connector (WOL_CON, 3-pins)
This connector allows the system to power up when there is a wakeup package
(signal) received from the network through the ASUS PCI-L101 LAN card. Requires the ASUS PCI-L101 and an ATX power supply with at least 720mAmp
5VSB.
+5 Volt Standby
PME
Ground
R
P2L-B Wake on LAN Connector
ASUS P2L-B User’s Manual
29
III. INSTALLATION
III. INSTALLATION
(Connectors)
9. Message LED Lead (MSG.LED, 2-pins)
This indicates whether a message has been received from a fax/modem. The
LED will remain lit when there is no signal and blink when there is data transfer
or messages waiting in the inbox. This function requires ACPI OS support.
10. SMI Suspend Switch Lead (SMI, 2-pins)
This allows the user to manually place the system into a suspend mode or “Green”
mode where system activity will be instantly decreased to save electricity and
expand the life of certain components when the system is not in use. This 2-pin
connector (see the figure below) connects to the case-mounted suspend switch.
If you do not have a switch for the connector, you may use the “Turbo Switch”
since it does not have a function. SMI is activated when it detects a short to
open moment and therefore leaving it shorted will not cause any problems. May
require one or two pushes depending on the position of the switch. Wake-up can
be controlled by settings in the BIOS but the keyboard will always allow wakeup (the SMI lead cannot wake-up the system). If you want to use this connector,
“Suspend Switch” in the Power Management Setup of the BIOS SOFTWARE
section should be on the default setting of Enable.
11. ATX Power Switch/Soft Power Switch Lead (PWR.SW, 2-pins)
The system power can be controlled by a momentary switch connected to this
lead. Pushing the button once will switch the system between ON and SLEEP.
Pushing the switch while in the ON mode for more than 4 seconds will turn the
system off. The system power LED shows the status of the system’s power.
12. Reset Switch Lead (RESET, 2-pins)
This 2-pin connector connects to the case-mounted reset switch for rebooting
your computer without having to turn off your power switch This is a preferred
method of rebooting in order to prolong the life of the system’s power supply.
13. System Power LED (PWR.LED, 3-pins)
This 3-pin connector connects the system power LED, which lights when the
system is powered on and blinks when it is in sleep mode.
14. Keyboard Lock Switch Lead (KEYLOCK, 2-pins)
This 2-pin connector connects to the case-mounted key switch to allow keyboard locking.
15. Speaker Connector (SPEAKER, 4-pins)
This 4-pin connector connects to the case-mounted speaker.
+5V
Ground
Ground
Speaker
+5 V
Speaker
Connector
+5 V
TB_LED
ExtSMI#
Ground
PWR
+3VSB
PLED
Keylock
Ground
Power LED
Message LED
Reset
Ground
Keyboard Lock
R
Reset SW
ATX Power
SMI Lead
Switch*
* Requires an ATX power supply.
P2L-B System Panel Connections
30
ASUS P2L-B User’s Manual
III. INSTALLATION
16. USB, Infrared, PS/2 Mouse Module Connector (USB/MIR, 18-1 pins)
If you want to use USB, PS/2 mouse, or infrared (IrDA) devices, you need to
purchase an external connector set. The external connector set connects to the
18-pin block and mounts to an open slot on your computer’s chassis. The system
will direct IRQ12 to the PS/2 mouse if one is detected. If not detected, expansion cards can use IRQ12. See PS/2 Mouse Control in BIOS Features Setup
and USB Function in PnP and PCI Setup of the BIOS SOFTWARE. See Second IrDA... connector for details on the infrared connector.
1
9
10
18
Infrared
R
PS/2
Mouse
USB 0
10: USB +5 Volt
11: USB Port 1 12: USB Port 1 +
13: Ground
14: (no connection)
15: PS/2 Mouse Data
16: Ground
17: Infrared Receive
18: Infrared Transmit
P2L-B PS/2 Mouse, USB, IrDA Module Connector
USB 1
III. INSTALLATION
(Connectors)
1: USB +5 Volt
2: USB Port 0 3: USB Port 0 +
4: Ground
5: (no connection)
6: PS/2 Mouse Clock
7: Ground
8: (no connection)
9: +5 Volt
Optional USB/MIR
17. Second IrDA-Compliant Infrared Connector (IR, 5-pins)
This connector supports the optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system cases that support this feature. You must also configure the setting through UART2 Use Infrared in Chipset Features Setup to select whether UART2 is directed for use
with COM2 or IrDA. Use the five pins as shown below (Back View) and connect a ribbon cable from the module to the motherboard according to the pin
definitions.
(NC)
GND
Front View
Back View
R
+5V
IRRX
IRTX
+5V
IRTX
GND
(NC)
IRRX
P2L-B Infrared Module Connector
ASUS P2L-B User’s Manual
31
III. INSTALLATION
18. ATX Power Supply Connector (ATXPWR, 20-pins)
This connector connects to a ATX power supply. The plug from the power supply
will only insert in one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.
+5.0 Volts
+5.0 Volts
-5.0 Volts
Ground
Ground
Ground
Power Supply On
Ground
-12.0Volts
+3.3Volts
IMPORTANT: Make sure that your ATX power supply can supply at least
10mAmp on the 5-volt standby lead (5VSB). You may experience difficulty in
powering on your system if your power supply cannot support the load. For
Wake on LAN support, your ATX power supply must supply at least 720mAmp.
R
+12.0Volts
+5V Standby
Power Good
Ground
+5.0 Volts
Ground
+5.0 Volts
Ground
+3.3 Volts
+3.3 Volts
III. INSTALLATION
(Connectors)
P2L-B ATX Power Connector
19. AT Power Supply Connector (POWER, 12-pins)
This connector connects to a standard 5 Volt power supply. To connect the leads
from the power supply, ensure first that the power supply is not plugged. Most
power supplies provide two plugs (P8 and P9), each containing six wires, two of
which are black. Orient the connectors so that the black wires are together.
RED
RED
RED
WHT
BLK
BLK
BLK
BLK
BLU
YLW
RED
ORG
+5V
GND
+12V
PG
R
-5V
+5V
-12V
Power Connector
on Motherboard
P8
P9
Power Plugs from
Power Supply
P2L-B AT Power Connector
Using a slight angle, align the plastic guide pins on the lead to their receptacles
on the connector. Once aligned, press the lead onto the connector until the lead
locks into place.
32
ASUS P2L-B User’s Manual
III. INSTALLATION
Power Connection Procedures
1. After all connections are made, close the system case cover.
2. Be sure that all switches are off (in some systems, marked with ).
3. Connect the power supply cord into the power supply located on the back of
your system case according to your system user’s manual.
4. Connect the power cord into a power outlet that is equipped with a surge protector.
III. INSTALLATION
(Power Connections)
5. You may then turn on your devices in the following order:
a.
Your monitor
b.
External SCSI devices (starting with the last device on the chain)
c.
Your system power. For ATX power supplies, you need to switch
on the power supply as well as press the ATX power switch on the
front of the case.
6. The power LED on the front panel of the system case will light. For ATX power
supplies, the system LED will light when the ATX power switch is pressed. The
monitor LED may light up after the system’s if it complies with “green” standards or if it has a power standby feature. The system will then run power-on
tests. While the tests are running, additional messages will appear on the screen.
If you do not see anything within 30 seconds from the time you turn on the
power, the system may have failed a power-on test. Recheck your jumper settings and connections or call your retailer for assistance.
7. During power-on, hold down <Delete> to enter BIOS setup. Follow the instructions in the next section, BIOS SOFTWARE.
* Powering Off your computer: You must first exit or shut down your operating
system before switching off the power switch. For ATX power supplies, you
can press the ATX power switch after exiting or shutting down your operating
system. If you use Windows 95, click the Start button, click Shut Down, and
then click Shut down the computer?. The system will give three quick beeps
after about 30 seconds and then power off after Windows shuts down.
NOTE: The message “You can now safely turn off your computer” will not
appear when shutting down with ATX power supplies.
ASUS P2L-B User’s Manual
33
IV. BIOS SOFTWARE
Support Software
PFLASH.EXE - This is the Flash Memory Writer utility that updates the BIOS by
uploading a new BIOS file to the programmable flash ROM chip on the motherboard. To determine the BIOS version, check the last four numbers of the code
displayed on the upper left-hand corner of your screen during bootup. Larger numbers represent a newer BIOS file. This file works in DOS or Windows mode.
NOTE: The following screen contents in this user's manual are provided as examples only and may not reflect the screen contents displayed on your system.
Flash Memory Writer Utility
IMPORTANT! If “unknown” is displayed after Flash Type -- , the memory
chip is either not programmable or is not supported with the PnP BIOS and
therefore cannot be programmed by the Flash Memory Writer utility.
IV. BIOS
(Flash Memory Writer)
Main Menu
1. Save Current BIOS To File
This option allows you to save a copy of the original motherboard BIOS in case you
need to reinstall it. It is recommended that you save PFLASH and the BIOS file to a
bootable floppy diskette.
2. Update BIOS Main Block From File
This option updates the BIOS from a file on the disk. The file can be either a new
file or a backup file created by the “Save Current BIOS To File” option. If the boot
block in the file is different from the current boot block, this option will not update
the main block. Instead, it will display the following messages.
34
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
IV. BIOS
(Flash Memory Writer)
3. Advanced Features
This option displays the Advanced Features screen for clearing the PnP configuration record and updating the motherboard BIOS.
Advanced Features Menu
1. Clear PNP ESCD Parameter Block
This option erases the Plug-and-Play (PnP) configuration record.
2. Update BIOS Including Boot Block and ESCD
This option updates the boot block, the baseboard BIOS, and the PnP extended system configuration data (ESCD) parameter block from a new BIOS file.
ASUS P2L-B User’s Manual
35
IV. BIOS SOFTWARE
Managing and Updating Your Motherboard’s BIOS
Upon First Use of the Computer System
1. Create a bootable system floppy diskette by typing [FORMAT A:/S] from the
DOS prompt without creating “AUTOEXEC.BAT” and “CONFIG.SYS” files.
2. Copy PFLASH.EXE to your new diskette.
3. Run PFLASH.EXE from your new diskette and select option 1 “Save Current
BIOS to File.” Enter the “Current BIOS Revision:” for the file name.
Updating BIOS Procedures (only when necessary)
IMPORTANT: If “unknown” is displayed after Flash Type -- , the memory chip
is not programmable or is not supported with the PnP BIOS and therefore cannot be
programmed by the Flash Memory Writer utility.
IV. BIOS
(Updating BIOS)
1. Download an updated ASUS BIOS file from the Internet (WWW or FTP) or a
BBS (Bulletin Board Service) (see ASUS CONTACT INFORMATION on page
3 for details) and save to the disk you created earlier.
2. Boot from the disk you created earlier.
3. At the “A:\” prompt, type PFLASH and then press <Enter>.
4. Enter 2 “Update BIOS Main Block From File” from the Main Menu or option 2
“Update BIOS Including Boot Block and ESCD” from the Advanced Features
Menu if prompted by option 2 of the Main Menu.
5. The program displays a second screen prompting you for the name of the BIOS
file. Type in the complete file name and extension of the new BIOS, and then
press <Enter>. The utility then updates the BIOS file from disk.
WARNING! If you encounter problems while updating the new BIOS, DO NOT
turn off your system since this might prevent your system from booting up. Just
repeat the process, and if the problem still persists, update the original BIOS file
you saved to disk above. If the Flash Memory Writer utility was not able to
successfully update a complete BIOS file, your system may not be able to boot
up. If this happens, your system will need service.
6. After successfully updating the new BIOS file, exit the Flash Memory Writer
utility and then reboot.
7. Hold down <Delete> to enter BIOS setup. You must select “Setup Default” to
effect the new BIOS, after which you may set the other items from the Main
Menu.
36
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
6. BIOS Setup
The motherboard supports two programmable Flash ROM chips: 5 Volt and 12
Volt. Either of these memory chips can be updated when BIOS upgrades are released. Use the Flash Memory Writer utility to download the new BIOS file into the
ROM chip as described in detail in this section.
All computer motherboards provide a Setup utility program for specifying the system configuration and settings. If your motherboard came in a computer system, the
proper configuration entries may have already been made. If so, invoke the Setup
utility, as described later, and take note of the configuration settings for future reference; in particular, the hard disk specifications.
If you are installing the motherboard, reconfiguring your system or you receive a
Run Setup message, you will need to enter new setup information. This section
describes how to configure your system using this utility.
IV. BIOS
(BIOS Setup)
The BIOS ROM of the system stores the Setup utility. When you turn on the computer, the system provides you with the opportunity to run this program. This appears during the Power-On Self Test (POST). Press <Delete> to call up the Setup
utility. If you are a little bit late pressing the mentioned key(s), POST will continue
with its test routines, thus preventing you from calling up Setup. If you still need to
call Setup, reset the system by pressing <Ctrl> + <Alt> + <Delete>, or by pressing
the Reset button on the system case. You can also restart by turning the system off
and then back on again. But do so only if the first two methods fail.
When you invoke Setup, the CMOS SETUP UTILITY main program screen will
appear with the following options:
NOTE: The following BIOS screens and descriptions were intended for the BIOS
version at the time of product release. Your BIOS version may be slightly different.
ASUS P2L-B User’s Manual
37
IV. BIOS SOFTWARE
Load Defaults
The “Load BIOS Defaults” option loads the minimum settings for troubleshooting.
“Load Setup Defaults”, on the other hand, is for loading optimized defaults for
regular use. Choosing defaults at this level, will modify all applicable settings.
A section at the bottom of the above screen displays the control keys for this screen.
Take note of these keys and their respective uses. Another section just below the
control keys section displays information on the currently highlighted item in the list.
Standard CMOS Setup
This “Standard CMOS Setup” option allows you to record some basic system hardware configuration and set the system clock and error handling. If the motherboard
is already installed in a working system, you will not need to select this option
anymore. However, if the configuration stored in the CMOS memory on the board
gets lost or damaged, or if you change your system hardware configuration, you will
need to respecify the configuration values. The configuration values usually get lost
or corrupted when the power of the onboard CMOS battery weakens.
IV. BIOS
(Standard CMOS)
The preceding screen provides you with a list of options. At the bottom of this screen
are the control keys for this screen. Take note of these keys and their respective uses.
User-configurable fields appear in a different color. If you need information on the
selected field, press <F1>. The help menu will then appear to provide you with the
information you need. The memory display at the lower right-hand side of the screen
is read-only and automatically adjusts accordingly.
Details of Standard CMOS Setup:
Date
To set the date, highlight the “Date” field and then press either <Page Up>/<Page Down>
or <+>/<–> to set the current date. Follow the month, day and year format. Valid values
for month, day and year are: Month: (1 to 12), Day: (1 to 31), Year: (up to 2079)
38
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
Time
To set the time, highlight the “Time” field and then press either <Page Up>/<Page Down>
or <+>/<–> to set the current time. Follow the hour, minute and second format. Valid
values for hour, minute and second are: (Hour: (00 to 23), Minute: (00 to 59), Second:
(00 to 59). Press <Enter> twice if you do not want to modify the current time.
NOTE: You can bypass the date and time prompts by creating an AUTOEXEC.BAT
file. For information on how to create this file, please refer to the MS-DOS manual.
Hard Disks
This field records the specifications for all non-SCSI hard disk drives installed in
your system. The onboard PCI IDE connectors provide Primary and Secondary
channels for connecting up to four IDE hard disks or other IDE devices. Each channel can support up to two hard disks; the first of which is the “master” and the
second is the “slave”.
Specifications for SCSI hard disks need not to be entered here since they operate
using device drivers and are not supported by any the BIOS. If you install either the
optional PCI-SC200 or PCI-SC860 SCSI controller card into the motherboard, see
section VI for instructions. If you install other vendor’s SCSI controller card, refer
to their respective documentations on how to install the required SCSI drivers.
IV. BIOS
(Standard CMOS)
For IDE hard disk drive setup, you can:
• Use the Auto setting for detection during bootup.
• Use the IDE HDD AUTO DETECTION in the main menu to automatically
enter the drive specifications.
• Enter the specifications yourself manually by using the “User” option.
The entries for specifying the hard disk type include CYLS (number of cylinders),
HEAD (number of read/write heads), PRECOMP (write precompensation), LANDZ
(landing zone), SECTOR (number of sectors) and MODE. The SIZE field automatically adjusts according to the configuration you specify. The documentation
that comes with your hard disk should provide you with the information regarding
the drive specifications.
The MODE entry is for IDE hard disks only, and can be ignored for MFM and ESDI
drives. This entry provides three options: Normal, Large, LBA, or Auto (see below). Set MODE to the Normal for IDE hard disk drives smaller than 528MB; set
it to LBA for drives over 528MB that support Logical Block Addressing (LBA) to
allow larger IDE hard disks; set it to Large for drives over 528MB that do not support LBA. Large type of drive can only be used with MS-DOS and is very uncommon. Most IDE drives over 528MB support the LBA mode.
ASUS P2L-B User’s Manual
39
IV. BIOS SOFTWARE
Auto detection of hard disks on bootup
For each field: Primary Master, Primary Slave, Secondary Master, and Secondary
Slave, you can select Auto under the TYPE and MODE fields. This will enable auto
detection of your IDE hard disk during bootup. This will allow you to change your
hard disks (with the power off) and then power on without having to reconfigure
your hard disk type. If you use older hard disks that do not support this feature, then
you must configure the hard disk in the standard method as described earlier by the
“User” option.
NOTE: After the IDE hard disk drive information has been entered into BIOS, new
IDE hard disk drives must be partitioned (such as with FDISK) and then formatted
before data can be read from and write on. Primary IDE hard disk drives must have
its partition set to active (also possible with FDISK).
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Drive A / Drive B (None)
These fields record the types of floppy disk drives installed in your system. The
available options for drives A and B are: 360KB, 5.25 in.; 1.2MB, 5.25 in.; 720KB,
3.5 in.; 1.44MB, 3.5 in.; 2.88MB, 3.5 in.; None
To enter the configuration value for a particular drive, highlight its corresponding
field and then select the drive type using the left- or right-arrow keys.
IV. BIOS
(Standard CMOS)
Floppy 3 Mode Support (Disabled)
This is the Japanese standard floppy drive. The standard stores 1.2MB in a 3.5inch
diskette. This is normally disabled but you may choose from either: Drive A, Drive
B, Both, and Disabled
Video (EGA/VGA)
Set this field to the type of video display card installed in your system. The options
are EGA/VGA, CGA 49, CGA 80, and Mono (for Hercules or MDA).
If you are using a VGA or any higher resolution card, choose EGA/VGA.
Halt On (All Errors)
This field determines which types of errors will cause the system to halt. Choose from
All Errors; No Errors; All,But Keyboard, All,But Diskette; and All,But Disk/Key.
40
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
BIOS Features Setup
This “BIOS Features Setup” option consists of configuration entries that allow you
to improve your system performance, or let you set up some system features according to your preference. Some entries are required by the motherboard’s design to
remain in their default settings.
IV. BIOS
(BIOS Features)
A section at the lower right of the screen displays the control keys you can use. Take
note of these keys and their respective uses. If you need information on a particular
entry, highlight it and then press <F1>. A pop-up help menu will appear to provide
you with the information you need. <F5> loads the last set values, <F6> and <F7>
loads the BIOS default values and Setup default values, respectively.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of BIOS Features Setup
CPU Internal Core Speed
This function is reserved for future use and is currently disabled.
Virus Warning (Disabled)
This field protects the boot sector and partition table of your hard disk against accidental modifications. Any attempt to write to them will cause the system to halt and display a warning message. If this occurs, you can either allow the operation to continue
or use a bootable virus-free floppy disk to restart and investigate your system. This
setting is recommended because of conflicts with new operating systems. Installation
of new operating systems require that you disable this to prevent write errors.
CPU Level 1 Cache / CPU Level 2 Cache (Enabled)
These fields allow you to choose from the default of Enabled or choose Disabled to
turn on or off the CPU’s Level 1 and Level 2 built-in cache.
ASUS P2L-B User’s Manual
41
IV. BIOS SOFTWARE
CPU Level 2 Cache ECC Check (Disabled)
Enabled allows the system to run an ECC check on the Level 2 cache. This is Disabled because this feature slows performance.
BIOS Update (Enabled)
This functions as an update loader integrated into the BIOS to supply the processor
with the required data. The BIOS will load the update on all processors during
system bootup in the default position of Enabled.
CPU Fast String (Enabled)
Leave on default setting of Enabled for best performance.
Quick Power On Self Test (Enabled)
This field speeds up the Power-On Self Test (POST) routine by skipping retesting a
second, third, and forth time. Setup default setting for this field is Enabled. A
complete test of the system is done on each test.
HDD Sequence SCSI/IDE First (IDE)
When using both SCSI and IDE hard disk drives, IDE is always the boot disk using
drive letter C (default setting of IDE). This new feature allows a SCSI hard disk
drive to be the boot disk when set to SCSI. This allows multiple operating systems
to be used on both IDE and SCSI drives or the primary operating system to boot
using a SCSI hard disk drive.
IV. BIOS
(BIOS Features)
Boot Sequence (C,A)
This field determines where the system looks first for an operating system. Options
are C,A; A,CDROM,C; CDROM,C,A; D,A; E,A; F,A; C only; LS/ZIP, C; and A,C.
The setup default setting is to check first the hard disk and then the floppy disk
drive, that is, C, A.
Boot Up Floppy Seek (Disabled)
When enabled, the BIOS will seek drive A once.
Floppy Disk Access Control (R/W)
This allows protection of files from the computer system to be copied to floppy
disks by allowing the setting of Read Only to only allow reads from the floppy disk
drive but not writes. The setup default R/W allows both reads and writes.
IDE HDD Block Mode Sectors (HDD MAX)
This field enhances hard disk performance by making multi-sector transfers instead
of one sector per transfer. Most IDE drives, except older versions, can utilize this
feature. Selections are HDD MAX, Disabled, 2, 4, 8, 16, and 32.
42
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
Security Option (System)
When you specify a Supervisor Password and/or User Password (explained later in
this section), the Security Option field determines when the system prompts for the
password. The default setting is System, where the system prompts for the User
Password every time you start your system. The other option is Setup, where the
system goes through its startup routine unless the Setup utility is called, when the
system prompts for the Supervisor Password.
PS/2 Mouse Function Control (Auto)
The default of Auto allows the system to detect a PS/2 mouse on bootup. If detected,
IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved for expansion cards
if a PS/2 mouse is not detected. Enabled will always reserve IRQ12, whether on
bootup a PS/2 mouse is detected or not.
PCI/VGA Palette Snoop (Disabled)
Some display cards that are nonstandard VGA such as graphics accelerators or MPEG
Video Cards may not show colors properly. The setting Enabled should correct this
problem. Otherwise leave this on the setup default setting of Disabled.
OS/2 Onboard Memory > 64M (Disabled)
When using OS/2 operating systems with installed DRAM of greater than 64MB,
you need to set this option to Enabled otherwise leave this on Disabled.
......................................................................................................................................
IV. BIOS
(BIOS Features)
Video ROM BIOS Shadow (Enabled)
This field allows you to change the video BIOS location from ROM to RAM. Relocating to RAM enhances system performance, as information access is faster than
the ROM.
C8000-CBFFF to DC000-DFFFF (Disabled)
These fields are used for shadowing other expansion card ROMs. If you install
other expansion cards with ROMs on them, you will need to know which addresses
the ROMs use to shadow them specifically. Shadowing a ROM reduces the memory
available between 640K and 1024K by the amount used for this purpose.
Boot Up NumLock Status (On)
This field enables users to activate the Number Lock function upon system boot.
Typematic Rate Setting (Disabled)
When enabled, you can set the two typematic controls listed next. Setup default
setting is Disabled.
Typematic Rate (Chars/Sec) (6)
This field controls the speed at which the system registers repeated keystrokes.
Options range from 6 to 30 characters per second. Setup default setting is 6; other
settings are 8, 10, 12, 15, 20, 24, and 30.
Typematic Delay (Msec) (250)
This field sets the time interval for displaying the first and second characters. Four
delay rate options are available: 250, 500, 750, and 1000.
ASUS P2L-B User’s Manual
43
IV. BIOS SOFTWARE
Chipset Features Setup
This “Chipset Features Setup” option controls the configuration of the board’s chipset.
Control keys for this screen are the same as for the previous screen.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of Chipset Features Setup
EDO Auto Configuration (60ns DRAM)
The default setting of 60ns DRAM sets the optimal timings for items 2 through 5 for
60ns DRAM modules. If you are using 70ns DRAM modules, you must change this
item to 70ns DRAM. See section III for DRAM installation information.
IV. BIOS
(Chipset Features)
SDRAM Configuration (12ns SDRAM)
If your DIMM modules are all 10ns SDRAM, you may set this to 10ns SDRAM.
SDRAM RAS to CAS Delay (Auto)
Leave on default setting.
SDRAM RAS Precharge Time (Auto)
Leave on default setting.
MA Wait State (Auto)
Leave on default setting.
SDRAM Banks Close Policy (Arbitration)
Leave on default setting.
16-bit I/O Recovery Time (1 BUSCLK)
Timing for 16-bit ISA cards. Leave on default setting.
8-bit I/O Recovery Time (1 BUSCLK)
Timing for 8-bit ISA cards. Leave on default setting.
Graphics Aperture Size (64MB)
Memory-mapped, graphics data structures can reside in a Graphics Aperture. Leave
on default setting.
44
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
Video Memory Cache Mode (UC)
USWC (uncacheable, speculative write combining) is a new cache technology for
the video memory of the processor. It can greatly improve the display speed by
caching the display data. You must leave this on the default setting of UC
(uncacheable) if your display card cannot support this feature or else your system
may not boot.
PCI 2.1 Support (Enabled)
This function allows you to Enable or Disable PCI 2.1 features. Leave on Enabled
setting for PCI 2.1 compliancy.
Memory Hole At 15M–16M (Disabled)
Enabling this feature reserves 15MB to 16MB memory address space to ISA expansion cards that specifically require this setting. This makes the memory from 15MB
and up unavailable to the system. Expansion cards can only access memory up to
16MB. The default is Disabled.
IV. BIOS
(Chipset Features)
DRAM are xx bits wide
If all your DIMM memory modules have ECC chips (e.g., 8 chips + 1 ECC chip),
they are considered 72bits and the following will be displayed:
If your DIMM memory modules do not have ECC chips (e.g. 8 chips), they are
considered 64bits and the following will be displayed instead:
Data Integrity Mode (Non-ECC)
Non-ECC has byte-wise write capability but no provision for protecting data integrity in the DRAM array. EC-Only data errors are detected but not corrected. ECC
allows a detection of single-bit and multiple-bit errors and recovery of single-bit
errors. (See section III for more information on DRAM memory modules.)
....................................................................................................................................
Onboard FDC Controller (Enabled)
When Enabled, this field allows you to connect your floppy disk drives to the onboard
floppy disk drive connector instead of a separate controller card. If you want to use a
different controller card to connect the floppy disk drives, set this field to Disabled.
ASUS P2L-B User’s Manual
45
IV. BIOS SOFTWARE
Onboard FDC Swap A & B (No Swap)
This field allows you to reverse the hardware drive letter assignments of your floppy
disk drives. Two options are available: No Swap and Swap AB. If you want to switch
drive letter assignments through the onboard chipset, set this field to Swap AB.
Onboard Serial Port 1 (3F8H/IRQ4)
Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for
the onboard serial connector.
Onboard Serial Port 2 (2F8H/IRQ3)
Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for
the onboard serial connector.
Onboard Parallel Port (378H/IRQ7)
This field sets the address of the onboard parallel port connector. You can select
either: 3BCH / IRQ 7, 378H / IRQ 7, 278H / IRQ 5, Disabled. If you install an I/O card
with a parallel port, ensure that there is no conflict in the address assignments. The PC
can support up to three parallel ports as long as there are no conflicts for each port.
Parallel Port Mode (ECP+EPP)
This field allows you to set the operation mode of the parallel port. The setting
Normal, allows normal-speed operation but in one direction only; EPP allows bidirectional parallel port operation at maximum speed; ECP allows the parallel port to
operate in bidirectional mode and at a speed faster than the maximum data transfer
rate; ECP+EPP allows normal speed operation in a two-way mode.
IV. BIOS
(Chipset Features)
ECP DMA Select (3)
This selection is available only if you select ECP or ECP+EPP in the
Parallel Port Mode. Select either DMA Channel 1, 3, or Disable.
UART2 Use Infrared (Disabled)
When enabled, this field activates the onboard infrared feature and sets the second
serial UART to support the infrared module connector on the motherboard. If your
system already has a second serial port connected to the onboard COM2 connector, it
will no longer work if you enable the infrared feature. By default, this field is set to
Disabled, which leaves the second serial port UART to support the COM2 serial port
connector. See IrDA-compliant infrared module connector under section III.
Onboard PCI IDE Enable (Both)
You can select to enable the primary IDE channel, secondary IDE channel, both, or
disable both channels (for systems with only SCSI drives).
IDE Ultra DMA Mode (Auto)
Leave this on Auto or set to Disable to turn off IDE Ultra DMA Mode.
IDE 0 Master/Slave PIO/DMA Mode, IDE 1 Master/Slave PIO/DMA Mode (Auto)
Each channel (0 &1) has both a master and a slave making four IDE devices possible.
Because each IDE device may have a different PIO Mode timing of 0, 1, 2, 3, or 4, it
is necessary for these to be independent. DMA Mode timing allows 0, 1, or 2. The
default setting of Auto will allow auto-detection to ensure optimal performance.
46
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
Power Management Setup
This “Power Management Setup” option allows you to reduce power consumption.
This feature turns off the video display and shuts down the hard disk after a period
of inactivity.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of Power Management Setup
IV. BIOS
(Power Management)
Power Management (User Define)
This field acts as the master control for the power management modes. Max Saving
puts the system into power saving mode after a brief period of system inactivity;
Min Saving is almost the same as Max Saving except that this time the system inactivity period is longer; Disable disables the power saving features; User Define allows you to set power saving options according to your preference.
IMPORTANT: Advanced Power Management (APM) should be installed to keep
the system time updated when the computer enters suspend mode activated by the
BIOS Power Management. For DOS environments, you need to add the statement,
DEVICE=C:\DOS\POWER.EXE, in you CONFIG.SYS. For Windows 3.x and Windows 95, you need to install Windows with the APM feature. A battery and power
cord icon labeled “Power” will appear in the “Control Panel.” Choose “Advanced”
in the Power Management Field.
Video Off Option (Always On)
This field determines when to activate the video off feature for monitor power
management. The settings are All Modes -> Off; Always On; Suspend -> Off; and
Susp,Stby -> Off .
ASUS P2L-B User’s Manual
47
IV. BIOS SOFTWARE
Video Off Method (Blank Screen)
This field defines the video off features. The following options are available: DPMS
OFF, DPMS Reduce ON, Blank Screen, V/H SYNC+Blank, DPMS Standby, and
DPMS Suspend. The DPMS (Display Power Management System) features allow
the BIOS to control the video display card if it supports the DPMS feature. Blank
Screen only blanks the screen (use this for monitors without power management or
“green” features. If set up in your system, your screen saver will not display with
Blank Screen selected). V/H SYNC+Blank blanks the screen and turns off vertical
and horizontal scanning.
.......................................................................................................................................
PM Timers
This section controls the time-out settings for the Power Management scheme. The
fields included in this section are “HDD Power Down”, which places the hard disk
into its lowest power consumption mode, and the Doze, Standby and Suspend system inactivation modes.
The system automatically “wakes up” from any power saving mode when there is
system activity such as when a key is pressed from the keyboard, or when there is
activity detected from the enabled IRQ channels.
IV. BIOS
(Power Management)
HDD Power Down (Disable)
Shuts down any IDE hard disk drives in the system after a period of inactivity. This
time period is user-configurable to 1–15 Min or Disable. This feature does not
affect SCSI hard drives.
Suspend Mode (Disable)
Sets the period of time after which each of these modes activate: 1 Min, 2 Min, 4
Min, 8 Min, 10 Min, 20 Min, 30 Min, 1 Hour, 2 Hour, and 4 Hour.
.......................................................................................................................................
Power Up Control
This section determines the ways the system can be controlled when it is started or
restarted, when modem activity is detected, or when power to the computer is interrupted and reapplied. The Soft-Off mode refers to powering off the system through
a momentary button switch (ATX switch) or through the software as opposed to
disconnecting the AC power by way of a rocker switch or other means.
PWR Button < 4 Secs (Soft Off)
When set to Soft Off, the ATX switch can be used as a normal system power-off
button when pressed for less than 4 seconds. Suspend allows the button to have a
dual function where pressing less than 4 seconds will place the system in sleep
mode. No Function disables the ATX switch function when the button is pressed
under 4 seconds. Regardless of the setting, holding the ATX switch for more than 4
seconds will power off the system.
48
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
PWR Up On Modem Act (Enabled)
This allows either settings of Enabled or Disabled for powering up the computer (turns
the ATX power supply on) when the modem receives a call while the computer is off.
NOTE: The computer cannot receive or transmit data until the computer and applications are fully running, thus connection cannot be made on the first try. Turning
an external modem off and then back on while the computer is off causes an initialization string that will also cause the system to power on.
IV. BIOS
(Power Management)
AC PWR Loss Restart (Disabled)
This allows you to set whether you want your system to boot up after the power has
been interrupted. Disabled leaves your system off after reapplying power and Enabled boots up your system after reapplying power.
Wake on LAN (Enable)
Enable allows the ASUS PCI-L101 fast Ethernet card to wake up the system using
the proper software. Disable turns off this feature.
Automatic Power Up (Disabled)
This allows you to have an unattended or automatic power up of your system. You may
configure your system to power up at a certain time of the day by selecting Everyday,
which will allow you to set the time or at a certain time and day by selecting By Date.
.....................................................................................................................................
Fan Monitor (xxxxRPM)
The onboard hardware monitor is able to detect the Chassis Fan Speed, CPU Fan
Speed, and the Power Supply Fan Speed in Rotations Per Minute (RPM). The Power
Supply Fan Speed is set to Ignore because many systems do not have this type of
connection. These values refresh upon any key entries in the BIOS setup screen. Set
to Ignore if one of these are not used so that error messages will not be given.
.....................................................................................................................................
Thermal Monitor (xxxC/xxxF)
The onboard hardware monitor is able to detect the CPU and MB (motherboard) temperatures. These values refresh upon key entries. Set to Ignore only if necessary.
.....................................................................................................................................
Voltage Monitor (xx.xV)
The onboard hardware monitor is able to detect the voltages put out by the voltage
regulators. These values refresh upon key entries. Set to Ignore only if necessary.
NOTE: If any of the monitored items are out of range, an error message will appear:
“Hardware Monitor found an error, enter POWER MANAGEMENT SETUP for
details”. You will then be prompted to “Press F1 to continue, DEL to enter SETUP”.
ASUS P2L-B User’s Manual
49
IV. BIOS SOFTWARE
PNP and PCI Setup
This “PNP and PCI Setup” option configures the PCI bus slots. All PCI bus slots on
the system use INTA#, thus all installed PCI cards must be set to this value.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of PNP and PCI Setup
IV. BIOS
(Plug & Play / PCI)
PNP OS Installed (No)
This field allows you to use a Plug-and-Play (PnP) operating system to configure
the PCI bus slots instead of using the BIOS. Thus interrupts may be reassigned by
the OS when Yes is selected. When a non-PnP OS is installed or to prevent reassigning of interrupt settings, select the default setting of No.
Slot 1 (RIGHT) IRQ to Slot 3 IRQ (Auto)
These fields set how IRQ use is determined for each PCI slot. The default setting for
each field is Auto, which uses auto-routing to determine IRQ use. The other options are
manual settings of NA, 5, 7, 9, 10, 11, 12, 14 or 15 for each slot.
PCI Latency Timer (32 PCI Clock)
The default setting of 32 PCI Clock enables maximum PCI performance for this
motherboard.
IRQ xx Used By ISA (No/ICU)
These fields indicate whether or not the displayed IRQ for each field is being used
by a legacy (non-PnP) ISA card. Two options are available: No/ICU and Yes. The
first option, the default value, indicates either that the displayed IRQ is not used or
an ISA Configuration Utility (ICU) is being used to determine if an ISA card is
using that IRQ. If you install a legacy ISA card that requires a unique IRQ, and you
are not using an ICU, you must set the field for that IRQ to Yes. For example: If you
install a legacy ISA card that requires IRQ 10, then set IRQ10 Used By ISA to Yes.
......................................................................................................................................
50
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
DMA x Used By ISA (No/ICU)
These fields indicate whether or not the displayed DMA channel for each field is
being used by a legacy (non-PnP) ISA card. Available options include: No/ICU and
Yes. The first option, the default setting, indicates either that the displayed DMA
channel is not used or an ICU is being used to determine if an ISA card is using that
channel. If you install a legacy ISA card that requires a unique DMA channel, and
you are not using an ICU, you must set the field for that channel to Yes.
ISA MEM Block BASE (No/ICU)
This field allows you to set the base address and block size of a legacy ISA card that
uses any memory segment within the C800H and DFFFH address range. If you
have such a card, and you are not using an ICU to specify its address range, select a
base address from the six available options; the ISA MEM Block SIZE field will
then appear for selecting the block size. If you have more than one legacy ISA card
in your system that requires to use this address range, you can increase the block
size to either 8K, 16K, 36K, or 64K. If you are using an ICU to accomplish this task,
leave ISA MEM Block BASE to its default setting of No/ICU.
SYMBIOS SCSI BIOS (Auto)
The default uses Auto settings for the onboard SCSI BIOS. If you do not want to use
the onboard SCSI BIOS, choose Disabled
ASUS P2L-B User’s Manual
IV. BIOS
(Plug & Play / PCI)
USB IRQ (Enabled)
Enabled reserves an IRQ# for the USB to work, Disabled does not allow the USB to
have an IRQ# and therefore prevents the USB from functioning. If you do not use
USB devices, you may Disable this feature to save an extra IRQ# for expansion cards.
51
IV. BIOS SOFTWARE
Load BIOS Defaults
This “Load BIOS Defaults” option allows you to load the troubleshooting default
values permanently stored in the BIOS ROM. These default settings are non-optimal and disable all high performance features. To load these default settings, highlight “Load BIOS Defaults” on the main screen and then press <Enter>. The system
displays a confirmation message on the screen. Press <Y> and then <Enter> to
confirm. Press <N> and then <Enter> to abort. This feature does not affect the
fields on the Standard CMOS Setup screen.
Load Setup Defaults
This “Load Setup Defaults” option allows you to load the default values to the system configuration fields. These default values are the optimized configuration settings for the system. To load these default values, highlight “Load Setup Defaults”
on the main screen and then press <Enter>. The system displays a confirmation
message on the screen. Press <Y> and then <Enter> to confirm. Press <N> and
then <Enter> to abort. This feature does not affect the fields on the Standard CMOS
Setup screen.
IV. BIOS
(Load Defaults)
52
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
Supervisor Password and User Password
IV. BIOS
(Passwords)
These two options set the system passwords. “Supervisor Password” sets a password that will be used to protect the system and the Setup utility; “User Password”
sets a password that will be used exclusively on the system. By default, the system
comes without any passwords. To specify a password, highlight the type you want
and then press <Enter>. A password prompt appears on the screen. Taking note that
the password is case sensitive, and can be up to 8 alphanumeric characters long, type
in your password and then press <Enter>. The system confirms your password by
asking you to type it again. After setting a password, the screen automatically reverts to the main screen.
To implement password protection, specify in the “Security Option” field of the
BIOS Features Setup screen when the system will prompt for the password. If you
want to disable either password, press <Enter> instead of entering a new password
when the “Enter Password” prompt appears. A message confirms the password has
been disabled.
NOTE: If you forget the password, see CMOS RAM in section III for procedures
on clearing the CMOS.
ASUS P2L-B User’s Manual
53
IV. BIOS SOFTWARE
IDE HDD Auto Detection
This “IDE HDD Auto Detection” option detects the parameters of an IDE hard disk
drive, and automatically enters them into the Standard CMOS Setup screen.
IV. BIOS
(Hard Disk Detect)
Up to four IDE drives can be detected, with parameters for each listed inside the
box. To accept the optimal entries, press <Y> or else select from the numbers displayed under the OPTIONS field (2, 1, 3 in this case); to skip to the next drive, press
<N>. If you accept the values, the parameters will appear listed beside the drive
letter on the screen. The process then proceeds to the next drive letter. Pressing
<N> to skip rather than to accept a set of parameters causes the program to enter
zeros after that drive letter.
Remember that if you are using another IDE controller that does not feature Enhanced IDE support for four devices, you can only install two IDE hard disk drives.
Your IDE controller must support the Enhanced IDE features in order to use Drive E
and Drive F. The onboard PCI IDE controller supports Enhanced IDE, with two
connectors for connecting up to four IDE devices. If you want to use another controller that supports four drives, you must disable the onboard IDE controller in the
Chipset Features Setup screen.
When auto-detection is completed, the program automatically enters all entries you
accepted on the field for that drive in the Standard CMOS Setup screen. Skipped
entries are ignored and are not entered in the screen.
If you are auto-detecting a hard disk that supports the LBA mode, three lines will
appear in the parameter box. Choose the line that lists LBA for an LBA drive. Do
not select Large or Normal.
The auto-detection feature can only detect one set of parameters for a particular IDE
hard drive. Some IDE drives can use more than one set. This is not a problem if the
drive is new and empty.
54
ASUS P2L-B User’s Manual
IV. BIOS SOFTWARE
IMPORTANT: If your hard disk was already formatted on an older previous system,
incorrect parameters may be detected. You will need to enter the correct parameters
manually or use low-level format if you do not need the data stored on the hard disk.
If the parameters listed differ from the ones used when the disk was formatted, the
disk will not be readable. If the auto-detected parameters do not match the ones that
should be used for your disk, do not accept them. Press <N> to reject the presented
settings and enter the correct ones manually from the Standard CMOS Setup screen.
Save & Exit Setup
IV. BIOS
(Save & Exit)
Select this option to save into the CMOS memory all modifications you specified
during the current session. To save the configuration changes, highlight the “Save
& Exit Setup” option on the main screen, type “Y”, and then press <Enter>.
Exit Without Saving
Select this option to exit the Setup utility without saving the modifications you specify
during the current session. To exit without saving, highlight the “Exit Without Saving” option on the main screen and then press <Enter>.
ASUS P2L-B User’s Manual
55
V. SUPPORT SOFTWARE
ASUS Smart Motherboard Support CD
(Included only with motherboards with onboard LM78 hardware monitoring)
Inserting the support CD brings up a selection menu described as follows:
(NOTE: CD version and contents are constantly modified without notice.)
V. SOFTWARE
(ASUS Support CD)
•
ASUS PC Probe Utility: Installs a simple software to monitor your computer’s
fan, temperature, and voltages. (NOTE: Will not run with LDCM installed)
•
LDCM Local Setup: Installs software to monitor the local system. The
LANDesk Client Manager must be installed in order to use the hardware manager features.
•
LDCM Administrator Setup: Installs software to monitor PC systems on the
network within the same bridge address with the Local software installed. The
administrator should install both Local and Administrator Software.
•
Adobe Acrobat Reader: Installs the Adobe Acrobat Reader software necessary to view the LDCM manual in the LDCM directory.
•
BusMaster: Installs the Intel BusMaster IDE drivers.
•
Patch for PIIX4 chipset: Installs the necessary drivers for PCI card and PCI
bridge for Windows 95/95a (OSR1) and 95b (OSR2) for ASUS motherboards.
•
Browse this CD: Allows you to see the contents of the ASUS support CD.
•
Technical Support Form: View the Technical Support Form with Notepad.
•
LDCM Introduction (MPEG): View a video on the LDCM features.
•
Read Me: View additional notes with Notepad.
•
Exit: Exit the selection menu .
Additonal CD Contents: DMI Configuration utility in the DMI directory and Flash
BIOS writer in the PFLASH directory.
56
ASUS P2L-B User’s Manual
V. SUPPORT SOFTWARE
Desktop Management Interface (DMI)
Introducing the ASUS DMI Configuration Utility
This motherboard supports DMI within the BIOS level and provides a DMI Configuration Utility to maintain the Management Information Format Database (MIFD).
DMI is able to auto-detect and record information pertinent to a computer’s system
such as the CPU type, CPU speed, and internal/external frequencies, and memory
size. The onboard BIOS will detect as many system information as possible and
store those collected information in a 4KB block in the motherboard’s Flash EPROM
and allow the DMI to retrieve data from this database. Unlike other BIOS software,
the BIOS on this motherboard uses the same technology implemented for Plug and
Play to allow dynamic real-time updating of DMI information versus creating a new
BIOS image file and requiring the user to update the whole BIOS. This DMI Configuration Utility also allows the system integrator or end user to add additional
information into the MIFD such as serial numbers, housing configurations, and vendor information. Those information not detected by the motherboard BIOS and has
to be manually entered through the DMI Configuration Utility and updated into the
MIFD. This DMI Configuration Utility provides the same reliability as PnP updating and will prevent the refreshing failures associated with updating the entire BIOS.
System Requirements
V. SOFTWARE
(DMI Utility)
The DMI Configuration Utility (DMICFG.EXE) must be used in real mode in order
for the program to run, the base memory must be at least 180K. Memory managers
like HIMEM.SYS (required by windows) must not be installed. You can boot up
from a system diskette without AUTOEXEC.BAT and CONFIG.SYS files, “REM”
HIMEM.SYS in the CONFIG.SYS, or press <F5> during bootup to bypass your
AUTOEXEC.BAT and CONFIG.SYS files.
ASUS P2L-B User’s Manual
57
V. SUPPORT SOFTWARE
Using the ASUS DMI Configuration Utility
Use the ←→ (left-right) cursors to move the top menu items and the ↑↓ (up-down)
cursor to move between the left hand menu items. The bottom of the screen will
show the available keys for each screen. Press enter at the menu item to enter the
right hand screen for editing. “Edit component” appears on top. The reversed color
field is the current cursor position and the blue text are available for editing. The
orange text shows auto-detected information and are not available for editing. The
blue text “Press [ENTER] for detail” contains a second pop-up menu is available,
use the + - (plus-minus) keys to change the settings. Enter to exit and save, ESC to
exit and not save.
If the user has made changes, ESC will prompt you to answer Y or N. Enter Y to go
back to the left-hand screen and save, enter N to go back to left-hand screen and not
save. If editing has not been made, ESC will send you back to the left hand menu
without any messages.
V. SOFTWARE
(Using DMI Utility)
Options
• You can save the MIFD (normally only saved to flash ROM) to a file by entering
the drive and path here. If you want to cancel save, you may press ESC and a
message “Bad File Name” appears here to show it was not saved.
• You can load the disk file to memory by entering a drive and path and file name
here.
• You can load the BIOS defaults from a MIFD file and can clear all user modified
and added data. You must reboot your computer in order for the defaults to be
saved back into the Flash BIOS.
Notes
• A heading, *** BIOS Auto Detect ***, appears on the right for each menu item
on the left side that has been auto detected by the system BIOS.
• A heading, *** User Modified ***, will appear on the right for menu items that
have been modified by the user.
58
ASUS P2L-B User’s Manual
VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(SCSI BIOS)
Symbios SCSI BIOS and Drivers
Aside from the system BIOS, the Flash memory chip on the motherboard also contains the Symbios SCSI BIOS. This Symbios SCSI BIOS works in conjunction with
the optional ASUS PCI-SC200 controller card to provide Fast SCSI-2 interface when
using compatible SCSI devices or the ASUS PCI-SC860 SCSI controller cards to
provide Ultra-Fast SCSI-2 interface when using Ultra-Fast SCSI-2 devices.
All SCSI devices you install on your system require driver software to function.
The Symbios SCSI BIOS directly supports SCSI hard disks under the DOS, Windows and OS/2 environments. It also uses device drivers from the DOS floppy disk
included in the ASUS PCI-SC200 and ASUS PCI-SC860 controller card packages
to support hard disks and other SCSI devices working under DOS, Microsoft Windows, Microsoft Windows NT, Novell NetWare and IBM OS/2. These drivers provide higher performance than the direct BIOS support. To use these drivers, you
must install them into your system and add them to your system configuration files.
Driver support for SCSI devices used with SCO UNIX is also provided. These
drivers are included in the second SCO UNIX floppy disk. Windows 95 support is
also available using the device drivers included within the Windows software. The
ASUS PCI-SC200 and ASUS PCI-SC860 are Plug and Play adapters that are auto
detected by BIOS and current operating systems that support Plug and Play features.
For information about these drivers and their usage, view the Readme files included
in the driver packages.
ASUS PCI-SC200 & PCI-SC860 SCSI Cards
The ASUS PCI-SC200 or the ASUS PCI-SC860 may be bundled with your motherboard or purchased separately. Both cards provide the option of connecting internal
or external SCSI devices for a total of 7 devices on each SCSI card.
ASUS P2L-B User’s Manual
59
VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(Setup)
Setting Up the ASUS PCI-SC200 & PCI-SC860
There are two jumper settings you may need to make on the ASUS PCI-SC200 to set
it up. One setting assigns the PCI INT interrupt, the other sets the card’s termination.
The ASUS PCI-SC860 has no jumper settings but you should read the “Terminator
Requirements.”
Setting the INT Assignment for the ASUS PCI-SC200
You must use PCI INT A setting in order to properly assign the ASUS PCI-SC200’s
interrupt. On the ASUS PCI-SC200, you assign the INT by setting jumper JP1 or
JP2. The default setting for the card already is INT A, so you do not need to change
the setting to use the ASUS PCI-SC200 with this motherboard.
JPJP
1 2
JPJP
1 2
1
2
3
JPJP
1 2
1
2
3
INT A (Def) INT B
JPJP
1 2
1
2
3
INT C
1
2
3
INT D
Interrupt Settings (A, B, C, or D)
Terminator Requirements for SCSI Devices
SCSI devices are connected together in a “chain” by cables. Internal devices connect to the ASUS PCI-SC200 or ASUS PCI-SC860 with a fifty-pin flat ribbon cable.
External devices connect to the external port with a SCSI-2 cable. If there are more
than one internal or external devices, additional devices are connected with cables
to form a “daisy chain.” Terminating the devices on the ends of the SCSI Bus “chain”
is necessary for SCSI devices to work properly. Termination of the devices between
the ends must be Disabled.
60
ASUS P2L-B User’s Manual
VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(Jumpers)
Terminator Settings for the ASUS PCI-SC860
Many SCSI devices including the ASUS PCI-SC860 use a set of onboard active
resistors to terminate the devices at the ends automatically. Automatic termination
requires that the SCSI devices be connected in a straight linear connection or “chain.”
Connect SCSI devices to one or two of the SCSI connectors in a linear “chain” for
auto termination of the ASUS PCI-SC860 to be effective. Other formations will
cause your SCSI devices to not mount properly. You must use the end of the ribbon
cable when using the internal connector(s) to keep a linear path.
Additional Note: The Symbios Logic SCSI Configuration Utility is a powerful
tool. If, while using it, you somehow disable all your controllers or cannot enter
the configuration utility, pressing “Ctrl-A” after memory count during reboot
allows you to recover and reconfigure.
Terminator Settings for the ASUS PCI-SC200
The ASUS PCI-SC200, on the other hand, has “active” termination that you must
set using jumper JP5. There are two settings, “terminated” and “not terminated,” as
shown below.
JP
5
Terminated (Default)
JP
5
Not Terminated
Terminator Setting (Terminated / Not Terminated)
Decide whether or not you need to terminate the ASUS PCI-SC200 based on its
position in the SCSI chain. Only the devices at each end of the chain need to be
terminated. If you have only internal or only external devices connected to the
ASUS PCI-SC200, then you must terminate the ASUS PCI-SC200. If you have
both internal and external devices connected, you must not terminate the card. See
the following example which illustrates this concept.
ASUS P2L-B User’s Manual
61
VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(SCSI ID Numbers)
SCSI Device 1
SCSI Device 2
Termination Required
(End Device)
Termination Required
(JP5 Open)
SCSI Device 3
SCSI Device 4
Termination Required
(End Device)
No Termination Required
(JP5 Short)
Termination Required
(End Device)
SCSI Device 2
SCSI Device 1
SCSI ID Numbers for SCSI Devices
All SCSI devices, including the ASUS PCI-SC200 and ASUS PCI-SC860 interface
card must have a SCSI identification number that is not in use by any other SCSI
device. There are eight possible ID numbers, 0 through 7. The ASUS PCI-SC200 and
ASUS PCI-SC860 cards have fixed SCSI IDs of 7. The SCSI ID serves two purposes:
•
•
It uniquely defines each SCSI device on the bus.
It determines which device controls the bus when two or more devices try to use
it at the same time.
SCSI IDs on one channel do not interfere with the IDs on another channel. This applies to two SCSI host adapters that implement different buses as well as dual channels
on a single host adapter. You can connect up to seven SCSI devices to the interface
card. You must set a SCSI ID number (ID 0 to ID 6) for each device. SCSI devices
vary in how they set the ID number. Some use jumpers, others have some kind of
selector switch. Refer to the manual for any device you install for details on how to set
its ID number.
SCSI ID Priority
The ASUS PCI-SC200 and ASUS PCI-SC860 are 8bit single-channel SCSI cards.
SCSI ID 7 has the highest priority, and SCSI ID 0 has the lowest priority.
62
ASUS P2L-B User’s Manual
VII. ASUS LAN Card
VII. ASUS LAN Card
(Parts / Layout)
ASUS PCI-L101 Fast Ethernet Card
LEDs
LAN Activity
Output Signal
Intel
Chipset
RJ45
Wake on LAN
Output Signal
ASUS
Motherboard type
Other
If you are using the ASUS PCI-L101 on an ASUS motherboard, leave the jumper on
its defaut setting of “ASUS.” If you are using another brand of motherboard, set the
jumper to “Other.” Connect the Wake on LAN (WOL) output signal to the
motherboard’s WOL_CON in order to utilize the wake on LAN feature of the motherboard. Connect the LAN activity output signal (LAN_LED) to the system cabinet’s
front panel LAN_LED in order to display the LAN data activity.
ASUS P2L-B User’s Manual
63
VII. ASUS LAN Card
Features
VII. ASUS LAN Card
(Information)
•
•
•
•
•
•
•
•
•
•
•
•
Intel 82558 Ethernet LAN Controller (Fully integrated 10BASE-T/100BASE-TX)
Wake-On-LAN Remote Control Function Supported
PCI Bus Master Complies to PCI Local Bus Rev. 2.1 specifications
Consists of MAC & PHY (10/100Mbps) interfaces
Complies to IEEE 802.3 10BASE-T and IEEE 802.3u 100BASE-TX interfaces
Fully supports 10BASE-T & 100BASE-TX operations through a single RJ45 port
Supports 32-bit Bus Master Technology / PCI Rev. 2.1
Enhancements on ACPI & APM
Adheres to PCI Bus Power Management Interface Rev. 1.0, ACPI Rev. 1.0, and
Device Class Power Management Rev. 1.0
IEEE 802.3u auto-negotiation for 10Mbps/100Mbps Network Data Transfer Rates.
Provides LED indicators for monitoring network conditions
Plug and Play
Software Driver Support
•
•
•
NetWare ODI Drivers - Novell Netware 3.x, 4.x, DOS, OS/2 Client
NDIS 2.01 Drivers - Microsoft LAN Manager, Microsoft Windows 3.11, IBM
LAN Server
NDIS 3.0 Drivers - Microsoft Windows NT, Microsoft Windows 95, Microsoft
Windows 3.11
Question and Answer
Q: What is Wake-On-LAN ?
A: The Wake-On-LAN feature provides the capability to remotely power on systems supporting Wake-On-LAN by simply sending a wake-up frame. With this
feature, remotely uploading/downloading data to/from systems during off-peak
hours will be feasible.
Q: What can Wake-On-LAN do for you ?
A: Wake-On-LAN is a remote management tool with advantages that can reduce
system management workload, provide flexibility to the system administrator’s
job, and then of course save you time-consuming efforts and costs.
Q: What components does Wake-On-LAN require to be enable?
A: To enable Wake-On-LAN function, your system requires Ethernet LAN adapter
card that can activate Wake-On-LAN function, a client with Wake-On-LAN capability, and software such as LDCM Rev. 3.10 or up that can trigger wake-up frame.
64
ASUS P2L-B User’s Manual