Chapter
1
System Board
1.1
Features
The AOpen DX2G Plus is a dual-processor system that supports two
Intel Pentium II/III Xeon processors running at 400/450/500/550 MHz
with possible higher frequencies supported in the future. It integrates
the latest multi-processor and I/O technology in the industry to provide
the best performance for workstation users.
AOpen DX2G Plus has been designed to support Intel latest and
highest performance processor, the Pentium II/III Xeon. Like its
predecessors, the Pentium Pro and Pentium II/III processors, the
Pentium II/III Xeon processor implements a Dynamic Execution microarchitecture - a unique combination of multiple branch prediction, data
flow analysis, and speculative execution. This means that the
Pentium II/III Xeon can deliver higher performance than the Pentium
processor while maintaining binary compatibility with all previous Intel
Architecture processors. Other than that, the Pentium II/III Xeon
processor is available in 512K, 1MB, and 2MB L2 cache options with
the introduction of the Slot 2 socket. Unlike Pentium II/III processors,
which access the L2 cache at half the processor core speed, the
Pentium II/III Xeon processors access the L2 cache at full processor
core speed. DX2G Plus has the design to leverage this benefit to
process workstation applications with large data sets.
AOpen DX2G Plus System Board
1-1
AOpen DX2G Plus was designed to support 100MHz front side bus
processors to maximize the performance of Pentium II/III Xeon
processors. It also provides 72-bit PC-100 ECC SDRAM DIMM
support to expand both memory bandwidth and data correction to the
limit. With four DIMM sockets, DX2G Plus supports up to 2GB system
memory which is enough for almost all workstation applications and
even more than most Unix workstations.
Keeping in mind that graphics performance is key for workstation
users, AOpen DX2G Plus supports an AGP 1X/2X graphics port so
the graphical data transmission bandwidth can reach up to 533MB/s,
four times higher than that of traditional PCI VGA transmission. With
DX2G Plus, Acer also provides several leading edge professional
graphics solutions for high-end workstation users.
To eliminate the I/O bottleneck common in traditional workstations,
AOpen DX2G Plus has a built-in dual channel Ultra2 SCSI (Small
Computer System Interface) system. This system enables the
throughput of a single channel SCSI bus to reach 80MB/s. Therefore,
the system throughput can reach 160MB/s, four times higher than the
original single channel Ultra-wide SCSI system. This system
especially helps users with large storage data and heavy access
traffics. AOpen DX2G Plus also supports narrow SCSI devices, like
SCSI tape drives, and DAT, by populating a 50-pin fast SCSI
connector on SCSI channel A.
AOpen DX2G Plus is a highly integrated system which tries to
incorporate all workstation users’ needs in one system. Besides the
features introduced above, DX2G Plus also integrates the following
features:
•
•
•
1-2
PCI IDE Interface: For IDE devices to be used in the system. This
interface supports Ultra DMA/33 and LS-120.
USB (Universal Serial Bus): For users USB devices, if any.
Two UART NS16C550 serial ports and one enhanced parallel
port with Enhanced Parallel Port (EPP)/Extended Capabilities
Port (ECP) support.
System Guide
•
10/100 Mb/s LAN: For SOHO (Small Office/Home Office) users
to link with network environments. AOpen DX2G Plus also
supports Wake-On-LAN (WOL) and Intel LDCM (LANDesk Client
Manager) for easy management.
AOpen DX2G Plus supports a power-management function that
conforms to the power-saving standards of the U.S. Environmental
Protection Agency (EPA) Energy Star program. It also offers the
Plug-and-Play feature. This feature saves the user from configuration
troubles, thus making the system more user-friendly. For the default
configuration, DX2G Plus is bundled with AOpen Bonus Pack which
includes on board Lan and SCSI drivers, LDCM Utility, Anti-Virus and
detail manual.
The system is fully compatible with major operating systems in the
industry, like Windows NT, Windows 95/98, Novell Netware, Novell
SFT III, SCO Open Server Unix/UnixWare. AOpen also plans to
support Linux and Solaris when related drivers become available.
AOpen DX2G Plus System Board
1-3
1.2
Major Components
AOpen DX2G Plus has the following major features:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1-4
Supports dual Intel Pentium II/III Xeon processors running at
400/450/500/550 MHz (and possible higher frequencies) with an
integrated 512K, 1MB or 2MB L2 write-back cache
Four DIMM sockets that accept 16-, 32-, 64- 128-, 256 and
512MB DIMMs with a maximum of 2048 MB system memory
One AGP, one ISA, and six PCI bus slots (one PCI and ISA
shared slot)
512-KB Flash ROM for system BIOS
System clock/calendar with battery backup
One 50-pin fast SCSI and two 68-pin Ultra2 SCSI interfaces
I/O APIC device for SMP interrupt support
Integrates an enhanced PCI local bus IDE controller
Intel 440GX chipset supports AGP (Accelerated Graphics Port)
and Ultra DMA/33 functions
10/100 Mb/s Intel 82558 LAN chip that supports Wake-On-LAN
(WOL)
IDE hard disk and diskette drive interfaces
Auxiliary power connector for 337W SPS (Optional) and 350W
ATX power supply
Super I/O, SCSI, memory and LAN Desk Client Manager (LDCM)
controller chipsets
External ports:
•
USB connectors
•
PS/2-compatible keyboard port
•
RJ-45 jack
•
PS/2-compatible mouse port
•
Parallel port
•
Serial port 1 and 2
System Guide
1.3
Layout
Figure 1-1 shows the system board components.
29
28
30
25
24
31
23
22
26
21
20
27
1
2
19
3
18
4
5
6
15
7
12
9
10
13
14
15
16
17
18
Mouse port
Keyboard port
Serial port 2
Parallel port
Serial port 1
USB connectors
RJ-45 LAN connector
LAN controller
AGP slot
PCI slots
ISA slot
Intel 82371EB PIIX4E (PCIISA bridge)
Intel 21152 (PCI-PCI bridge)
Buzzer
Adaptec 7896 SCSI controller
Battery
Feature Connector (supports Intel
SMM cards)
System BIOS
Figure 1-1
17
14
8
1
2
3
4
5
6
7
8
9
10
11
12
16
13
11
19
20
21
22
23
24
25
26
27
28
29
30
31
RDM connectors
Channel 2 fast/narrow SCSI
connector (50-pin)
Channel 1 Ultra-wide/Ultra-2 SCSI
connector (68-pin)
Channel 2 Ultra-wide/Ultra-2 SCSI
connector (68-pin)
FDD connector
EIDE connector 2 (secondary
channel)
EIDE connector 1 (primary
channel)
DIMM sockets
Intel 443GX system controller
AT power connector
ATX power connector
Acer H90 / IDM(W) power
connectors
Slot-2 CPU sockets
System Board Layout
AOpen DX2G Plus System Board
1-5
1.4
Jumpers and Connectors
1.4.1
Jumper and Connector Locations
Figure 1-2 shows the jumper and connector locations on the system
board.
Figure 1-2
System Board Jumper and Connector Locations
Jumpers are prefixed P” . Connectors are
prefixed
N” . The blackened pin of a
jumper or connector represents pin 1.
1-6
System Guide
1.4.2
Jumper Settings
Table 1-1 lists the system board jumpers with their corresponding
settings and functions.
Table 1-1
System Board Jumper Settings
Jumper
BIOS Logo
JP3
Password Security
JP4
Boot Block Mode
JP5
Sound Output
JP6
AlertPack Select
JP7
Setting
Function
1-2*
2-3
Logo
OEM
1-2
2-3*
Check password
Bypass password
1-2*
2-3
Disabled
Enabled
1-2*
2-3
Buzzer
Speaker
1-2/4-5
2-3/5-6*
AlertPack and LM80
LM80 Only
* Default
AOpen DX2G Plus System Board
1-7
1.4.3
Connector Functions
Table 1-2 lists the different connectors on the system board and their
respective functions.
Table 1-2
Connector Functions
Connector
CN1
CN3
CN4, CN5
1-8
Function
Cabinet Fan Connector
Mouse (above) and Keyboard (below) Ports
Specified Power Supply Connector
CN6
ATX 337W Power Connector (3.3V or 5V)
CN7
AT Power Supply Connector
CN9
Modem Card Ring-in Connector
CN10
Parallel (above), Serial 1(left), and Serial 2 (right)
Ports
CN11
USB Connectors
CN12
CPU1 Fan Connector
CN13
CPU2 Fan Connector
CN14
RJ-45 (LAN) Port
CN15
Fail Report LED Connector
CN16
Cabinet Fan Connector
CN17
Cabinet Fan Connector
CN18
Cabinet Fan Connector
CN20
2 Color Power LED Connector
CN22
Redundant Power Status Connector (not used by
AOpen DX2G Plus)
CN23
CPU1 Temperature Connector
CN24
CPU2 Temperature Connector
CN26
PC-PCI Connector (for Audio Card)
CN27
Primary IDE Connector
CN28
FDD Connector
CN29
SCSI Channel 2 Connector
CN30
Secondary IDE Connector
System Guide
Table 1-2
Connector Functions
Connector
Function
CN32
SCSI Channel 1 Wide Connector
CN33
SCSI Channel 1 Narrow Connector
CN34
RDM LED Connector (not used by AOpen DX2G
Plus)
CN35
External Speaker Connector
CN36
Hard Disk LED Connector
CN37
Hard Disk LED Connector
CN38
Power Switch Connector
CN39/47
RDM/ASM Module Connector (not used by AOpen
DX2G Plus)
CN40
Wake-on-LAN (WOL) Connector
CN42
3-pin Standby Power Connector
CN43
Hard Disk LED Connector
CN44
Reset Button Connector
CN45
Feature Connector (Intel SMM Card)
CN46
Door Switch Connector
CNX19
I2C Connector
AOpen DX2G Plus System Board
1-9
1.5
ESD Precautions
Always observe the following electrostatic discharge
precautions before installing a system component:
(ESD)
1.
Do not remove a component from its antistatic packaging until
you are ready to install it.
2.
Wear a wrist grounding strap before handling electronic
components. Wrist grounding straps are available at most
electronic component stores.
Do not attempt the procedures described in
the following sections unless you are a
qualified technician.
1-10
System Guide
1.6
Installing and Removing the Pentium
II/III Xeon Processors
Intel Pentium II/III Xeon CPU is a Slot 2 (SC-330) processor that
uses a 330-pin single edge connector which is a bit longer that a Slot
1 processor. Other than the size, the major improvement of the Slot 2
processor is at the L2 cache. Pentium II/III Xeon processors access
the L2 cache at full clock speed, up to 550MHz and possible higher
frequencies, whereas a Slot 1 processor accesses the L2 at only half
the CPU clock speed. This significantly boosts performance and
speed.
1.6.1
Installing the Retention Mechanisms
Follow these steps to install the retention mechanisms:
1. Attach both the retention mechanisms with the joint bar. Snap-in
the joint bar on both sides of each retention mechanism.
Figure 1-3
Inserting the joint bar into the Retention Mechanisms
2. Insert both retention mechanisms into the Slot 2 sockets. Make
sure that the shafts of the retention mechanisms with a O sign are
facing the external ports of the system board.
AOpen DX2G Plus System Board
1-11
3. Align the metal brace beneath the system board along the Slot 2
retention holes and secure the retention mechanisms with eight
screws: six screws (see figure below) to secure the retention
mechanisms and two screws afterwards, when fitting the system
board to the housing.
O
External Ports
Figure 1-4
1-12
Installing the Retention Mechanisms
System Guide
1.6.2
Installing an Intel Pentium II/III Xeon
processor
Follow these steps to install a Pentium II/III Xeon processor:
1. Attach the fansink module to the Pentium II/III Xeon processor
and secure it with four screws.
Figure 1-5
Installing a Fansink
AOpen DX2G Plus System Board
1-13
2. Insert the Pentium II/III Xeon processor into an empty Slot 2
socket.
O
Figure 1-6
Installing a Pentium II/III Xeon Processor
3. Carefully press down the Pentium II/III Xeon processor until it is
properly inserted into the socket.
1-14
System Guide
4. Use the retention mechanism cover to secure the processor by
pressing it down until it locks onto the retention mechanism as
shown below.
Figure 1-7
Installing a Retention Mechanism Cover
The retention mechanism cover only fits one way. Both shafts of the
retention mechanism and the retention mechanism cover have a O
and a OO sign. Match the O on the cover with the O on the retention
mechanism first, then hook them together and then insert the OO side
onto the retention mechanism. Make sure both sides are securel
clipped.
1.6.3
Removing an Intel Pentium II/III Xeon
processor
Follow these steps to remove a Pentium II/III Xeon processor:
AOpen DX2G Plus System Board
1-15
1. Unclip the retention mechanism cover.
Figure 1-8
Removing a Retention Mechanism Cover
2. Flip up both plastic ears of the Pentium II/III Xeon processor. This
procedure detaches the processor from the socket.
Figure 1-9
Removing a Pentium II/III Xeon Processor
3. Carefully lift up and remove the Pentium II/III Xeon processor.
1-16
System Guide
1.6.4
Installing and Removing the Terminator
Board
When you are not using both of the Slot 2 sockets, you must install a
terminator board into the empty slot.
To install a terminator board:
1.
Position the terminator board over the empty slot.
2. Carefully insert the golden fingers of the terminator board into the
slot until the board fits completely.
O
Figure 1-10
Installing a Terminator Board
3. Use the retention mechanism cover to secure the terminator
board by pressing it down until it locks onto the retention
mechanism. See figure 1-7 for an illustration of this step.
AOpen DX2G Plus System Board
1-17
The retention mechanism cover only fits one way. Both the shafts
of the retention mechanism and the retention mechanism cover
have a O and a OO indicator. Match the O on the cover with the
O on the retention mechanism first, then hook them together and
insert the OO side onto the retention mechanism, make sure both
sides are securely clipped.
To remove the terminator board:
1. Unclip the retention mechanism cover.
2. Flip up both plastic ears of the terminator board. This procedure
detaches the terminator board from the socket.
3. Lift up and remove the terminator board.
Refer to section 1.6.3 for illustrations of this procedure.
1-18
System Guide
1.7
Memory Upgrade
The four 168-pin sockets onboard support SDRAM-type DIMMs. You
may install 16-MB, 32-MB, 64-MB, 128-, 256-, or 512-MB (single and
double density) DIMMs for a maximum of 2048-MB system memory.
The SDRAM DIMMs should work under 3.3 volts only; 5-volt memory
devices are not supported. AOpen DX2G Plus supports both 100MHz
standard and registered SDRAM. However, they cannot be used at
the same time in a system. Please contact your dealer for qualified
DIMM vendors.
Do not use both 100 MHz (registered) and 66
MHz (standard/unbuffered) SDRAM together.
Such a combination might cause your system
to malfunction.
Each of the DIMM sockets is independent from the others. This
independence allows you to install DIMMs with different capacities to
form different configurations.
1.7.1
Memory Configurations
Table 1-3 lists some system memory configurations. You may
combine DIMMs with various capacities to form other combinations.
Table 1-3
DIMM1
Memory Configurations
DIMM2
DIMM3
DIMM4
32 MB
32 MB
32 MB
32 MB
32 MB
32 MB
32 MB
32 MB
32 MB
32 MB
64 MB
64 MB
64 MB
Total Memory
96 MB
32 MB
128 MB
64 MB
64 MB
AOpen DX2G Plus System Board
128 MB
1-19
Table 1-3
Memory Configurations
DIMM1
DIMM2
DIMM3
64 MB
64 MB
64 MB
64 MB
64 MB
64 MB
DIMM4
192 MB
64 MB
128 MB
256 MB
128 MB
128 MB
128 MB
128 MB
128 MB
128 MB
128 MB
256 MB
128 MB
128 MB
384 MB
128 MB
256 MB
512 MB
256 MB
256 MB
256 MB
256 MB
256 MB
256 MB
256 MB
256 MB
256 MB
512 MB
768 MB
256 MB
512 MB
1024 MB
512 MB
512 MB
512 MB
512 MB
512 MB
512 MB
512 MB
512 MB
512 MB
1.7.2
Total Memory
1024 MB
1536 MB
512 MB
2048 MB
Installing a DIMM
To install a DIMM, align it with the socket and press it down until the
holding clips secure the DIMM in place.
The DIMM socket is slotted to ensure proper
installation. If you slip in a DIMM but it does
not completely fit, you may have inserted it
the wrong way. Reverse the orientation of
the DIMM.
1-20
System Guide
Figure 1-11
1.7.3
Installing a DIMM
Removing a DIMM
To remove a DIMM, press the holding clips on both sides of the
socket outward to release the DIMM.
Place your forefingers on the top of the
DIMM before you press the holding clips to
gently disengage the DIMM from the socket.
Figure 1-12
Removing a DIMM
AOpen DX2G Plus System Board
1-21
1.7.4
Reconfiguring the System
Reconfigure the system after installing or removing DIMMs.
Follow these steps to reconfigure the system:
1.
Reboot the system.
A memory error message appears,
indicating that the total memory does not match the value stored
in CMOS.
2.
Press
3.
Press
twice to exit Setup and reboot the system.
system boots with the new memory configuration.
1-22
.
The
System Guide
1.8
Installing Expansion Cards
1.8.1
Installing an PCI Cards
To install PCI cards:
1.
Locate the PCI slots on the system board.
2.
Remove the bracket on the housing opposite an empty PCI slot.
3.
Insert a PCI card into the slot.
properly seated.
4.
Secure the card to the housing with a screw.
Make sure that the card is
When you turn on the system, BIOS automatically detects and
assigns resources to the PCI devices.
Figure 1-13
1.8.2
Installing a PCI Card
Installing ISA Cards
Both PnP and non-PnP ISA cards require specific IRQs. When
installing ISA cards, make sure that the IRQs required by these cards
are not previously assigned to PCI devices to avoid resource conflicts.
AOpen DX2G Plus System Board
1-23
Follow these steps when installing ISA cards:
1.
Install non-PnP ISA cards.
2.
Turn on the system.
3.
Use the operating system to manually assign the appropriate
IRQs to the cards. This ensures that BIOS will not use the
resources assigned to the non-PnP ISA cards.
BIOS detects and configures only PnP cards.
4.
Turn off the system.
5.
Turn on the system.
This time PnP BIOS automatically
configures the PnP ISA and PCI cards with the available
resources.
Figure 1-14
1.8.3
Installing an ISA Card
Installing an AGP Card
Follow these steps when installing an AGP card:
1. Locate the AGP slot (brown color) on the mainboard.
1-24
System Guide
2. Insert an AGP card into the slot.
properly seated.
Figure 1-15
Make sure that the card is
Installing an AGP Card
When you turn on the system, BIOS automatically detects and
assigns resources to the AGP device.
AOpen DX2G Plus System Board
1-25
1.9
LDCM
Intel® LANDesk® Client Manager Version 3.3 is an application that
simplifies local and network management of mobile and desktop client
systems. It monitors PC health to provide local and remote alerts. It
gives local and remote views of hardware and software component,
even via dial-up. And it does all this through standards and industry
initiatives such as Desktop Management Interface (DMI), Simple
Network Management Protocol (SNMP) and the Wired for
Management (WfM) Initiative.
This release is pre-installed on Original Equipment Manufacturers
(OEMs) PCs and is designed to lower the cost of PC ownership while
providing greater control and flexibility to systems administrators.
Key features
Wired for Management Baseline Version 2.0 compliance.
Remote wake-up
Remote dial-up
Dynamic mobile devices
International languages
Real-time monitoring and alerting of hard drive, memory, fan, power
supply and temperature.
DMI v2.0-based local and remote client management.
SNMP Trap generation for enterprise alerting.
Certificate-based authentication for enhanced security.
Software Development Kit (SDK) for OEM customization.
1-26
System Guide
1.10
Error Messages
Do not continue using the computer if you receive an error message
of any type. Note the message and take corrective action. This
section explains the different types of error messages and
corresponding corrective measures.
There are two general types of error messages:
•
•
Software
System
1.10.1
Software Error Messages
Software error messages are returned by your operating system or
application. These messages typically occur after you boot the
operating system or when you run your applications. If you receive
this type of message, consult your application or operating system
manual for help.
1.10.2
System Error Messages
A system error message indicates a problem with the computer itself.
A message of this type normally appears during POST (Power-On
Self-Test), before the operating system prompt appears.
Table 1-4 lists possible system error messages.
Table 1-4
System Error Messages
Message
*
Action
CMOS Battery Bad
Replace the lithium battery or
contact your dealer.
CMOS Checksum Error
Run Setup*.
Press
during POST to enter the BIOS Setup screen.
AOpen DX2G Plus System Board
1-27
Table 1-4
System Error Messages
Message
*
Action
CPU BIOS Update Code
Mismatch
Contact your dealer.
Diskette Drive Controller Error
or Not Installed Floppy Disk
Controller Error
Check and connect the floppy
cable on both floppy drive and
system board end.
Diskette Drive Error
Check the CMOS settings in
Setup* and the floppy drive cable
connections.
Diskette Drive A Type
Mismatch Floppy Drive A Error
Run Setup* and select the proper
floppy drive type.
Diskette Drive B Type
Mismatch Floppy Drive B Error
Run Setup* and select the proper
floppy drive type.
ECC Facility Fail
DIMM might be bad. Contact
your dealer.
Equipment Configuration Error
Modify memory configuration to
conform to one of the
configurations in Table 1-3.
Expansion ROM Allocation
Failed
Contact your dealer.
Hard Disk Controller Error
Run Setup* or check the hard disk
cable connection.
Hard Disk 0 Error IDE Primary
Channel Master Drive Error
Check all cable connections.
Replace hard disk.
IDE Primary Channel Slave
Drive Error
Check all cable connections.
Replace hard disk.
Hard Disk 1 Error IDE
Secondary Channel Master
Drive Error
Check all cable connections.
Replace hard disk.
IDE Secondary Channel Slave
Drive Error
Check all cable connections.
Replace hard disk.
Press
1-28
during POST to enter the BIOS Setup screen.
System Guide
Table 1-4
System Error Messages
Message
Action
Hard Disk 0 Extended Type
Error
Run Setup*.
Hard Disk 1 Extended Type
Error
Run Setup*.
IRQ Setting Error
Run Setup* to make sure there is
no IRQ device conflict.
I/O Parity Error
Contact your dealer.
I/O Resource Conflict(s)
Check ISA add-on card, serial
port, and parallel port to make
sure there is no IRQ and I/O
address conflict.
I2C Interface or Device(s)
Error, System Halt
Shut down and disconnect the
power cable or contact your
dealer.
PS/2 Keyboard Error or No
Keyboard Connected
Check and connect the keyboard
to the system unit.
PS/2 Keyboard Interface Error
Replace the keyboard or contact
your dealer.
PS/2 Pointing Device Error
Check and connect pointing
device connection.
PS/2 Pointing Device Interface
Error
Run Setup and check pointing
device.
Memory Error at:
MMMM:SSSS:OOO
(W:XXXX, R:YYYY)
Check DIMMs on the system
board. Contact your dealer.
where:
M: MB, S: Segment,
O: Offset,
X/Y: write/read pattern
*
Press
during POST to enter the BIOS Setup screen.
AOpen DX2G Plus System Board
1-29
Table 1-4
System Error Messages
Message
Action
Memory Resource Conflict(s)
Check ISA add-on card.
Memory Size Mismatch
Check the memory size based on
the system specifications. Run
Setup*. If the message
reappears, ask for technical
assistance.
CPU Clock Mismatch
NVRAM Checksum Error
Contact your dealer.
Onboard Pointing Device
Interface Error
Replace the pointing device or
contact your dealer.
Real Time Clock Error
Run Setup and set the time and
date.
RAM Parity Error
Contact your dealer.
64K System Management
Memory Bad
Contact your dealer.
SMRAM Not Exist
Contact your dealer.
Press Esc to turn off NMI, any
key to reboot
Press
error.
to disregard the NMI
Press any other key to reboot the
system. If this happens
repeatedly contact your dealer.
*
Press
1-30
during POST to enter the BIOS Setup screen.
System Guide
1.10.3
Correcting Error Conditions
As a general rule, if an error message says "Press F1 to continue," it
is caused by a configuration problem, which can be easily corrected.
An equipment malfunction is more likely to cause a fatal error, i.e., an
error that causes complete system failure.
Here are some corrective measures for error conditions:
1.
Run Setup. You must know the correct configuration values for
your system before you enter Setup, which is why you should
write them down when the system is correctly configured. An
incorrect configuration is a major cause of power-on error
messages, especially for a new system.
2.
Remove the system unit cover. Check that the jumpers on the
system board and any expansion boards are set correctly.
3.
If you cannot access a new disk, it may be because your disk is
not properly formatted. Format the disk first using the FDISK and
FORMAT commands.
4.
Check that all connectors and boards are securely plugged in.
If you go through the corrective steps above and still receive an error
message, the cause may be an equipment malfunction.
If you are sure that your configuration values are correct and your
battery is in good condition, the problem may lie in a damaged or
defective chip.
In either case, contact an authorized service center for assistance.
AOpen DX2G Plus System Board
1-31
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