4
BIOS Overview
This chapter describes the BIOS features of the Compaq Evo D510 e-pc.
BIOS Summary
The Compaq Evo D510 e-pc contains an AMI BIOS. The system ROM contains the POST
(power-on self-test) routines and the BIOS: the System BIOS, video BIOS, and Intel LAN option ROM.
The system BIOS is identified by the version number JK.xx.yy (for example JK.01.01).
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The latest BIOS version for your computer and instructions for updating the BIOS can be downloaded from the support Web site at: http://www.compaq.com/support
This section covers:
The Configuration and Diagnostics Menu and Setup Program
Setup and Advanced Menus
Power Management and Wake up Events
Beep Codes and Error Messages
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BIOS Overview
Entering the Configuration and Diagnostics Menu
To enter the Configuration and Diagnostics menu on your Evo D510 e-pc, restart the computer and keep
F8
pressed. The Configuration and Diagnostics menu is displayed:
Configuration and
Diagnostics
Boot Device
HDD
CD/DVD
LAN
<F2> Enter Setup
<ESC> Summary
<F12> Boot on lan
From the Boot Device section you can select which device to begin booting from.
Press
F2
to enter the Setup menu, see “Setup and Advanced Screens” for more information.
Press
Esc
to view the summary configuration screen. By default, this remains on the screen for
10 seconds, but by pressing the
Pause
key once, it can be held on the screen indefinitely until any key is pressed.
Press
F12
to boot (start) on the network. This option will only work if your PC and the network is configured correctly.
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BIOS Overview
Setup and Advanced Screens
The Setup menu contains the following fields in one page.
Setup Menu
Field
System Date
System Time
1st Boot Device
2nd Boot Device
3rd Boot Device
4th Boot Device
Power-On Password
Set Supervisor Password
Set User Password
Remote Power On (RPO)
Boot On LAN after RPO
Front USB ports
CD-ROM Interface
HDD Interface
Network Interface
Audio Interface
[Not set]
[Not set]
Enabled
Disabled
Enabled
Enabled
Enabled
Enabled
Enabled
Default Value
July 10 2002 Wed
00:00:00
USB Floppy
CD/DVD
HDD
LAN
No password on boot
The boot order is defined by the settings of the 1st Boot Device to 4th Boot Device. Help is available for each item.
The Advanced menu contains the following fields in one menu.
Advanced Menu
Field
Boot-time Diagnostic Screen
POST Menu Wait Time
State after a power failure
Default Value
Disabled
None
Auto
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BIOS Overview
Power Management and Wake Up Events
You can reduce the computer’s overall power consumption by using Power Management to reduce power consumption when the computer is idle.
ACPI Power Management Modes
(Windows 2000 and Windows XP)
The following table describes the power states and identifies the possible Wake Up Events for the different power management modes. Activity on any one of these events will cause the system to wake up from it’s current power state.
Power State
S1 (Idle)
S3 (Standby/Suspend to RAM)
S4
(Hibernation/Suspend to Disk)
S5 (Power Off)
Description
Processor is shut down
All components of the system are shut down except for the system memory which remains active.
System memory is copied to the hard drive. All components of the system are shut down.
Wake Up Event
Windows 2000/XP
RTC (Real Time Clock)
LAN
USB
Power Button
RTC (Real Time Clock)
LAN
USB
Power Button
RTC (Real Time Clock)
USB and LAN
Power Button
Power Button and LAN
S5 (After Power Loss)
All components of the system are shut down.
All components of the system are shut down.
Power Button and LAN
■ By default, when activating Standby mode in Windows XP or Windows 2000, the computer will go into the S3, “Suspend to RAM,” power state.
■ The Hibernate menu in Windows XP and Windows 2000 is the same as S4, “Suspend to Disk.”
✎
For the Standby command to activate the S3 power state and not S1, all drivers must be correctly installed.
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BIOS Overview
Beep Codes and Error Messages
If the computer powers on but does not start properly, it attempts to report the error in two ways:
■ It emits a modulated audio signal followed by one or more distinct beeps—this is preboot diagnostics.
■ It displays an error message on the screen – this is a BIOS error.
Pre-Boot Audio Signal and Beeps
Preboot diagnostics is performed by a micro-controller on the system board, which generates audio signals when an error is encountered. The pre-boot audio signal can be used to identify the hardware component that needs troubleshooting or replacement:
The modulated audio signal can be interpreted by a support provider equipped with the
Virtual Call Assistant. (For more information about the Virtual Call Assistant, refer to the Virtual Call Assistant User’s Guide, available at http://www.compaq.com/support.
)
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3
4
5
6
7
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Beeps Issue/Meaning Resolution
✎ When the power switch is depressed, to activate the computer and there are no faults found, the computer will start up with no unusual or special sounds. If a fault is found during the start-up, the computer will generate a series of ringing tones followed by the correct number of beeps shown in this table that correspond to the fault found.
Processor fault
Power supply overload
1. Check that processor and heatsink ar properly installed.
2. Replace processor
1. Disconnect all external devices and restart the computer.
If the computer starts correctly, add devices, one-at-a-time until the overload situation is achieved and the faulty device is identified.
2. If the computer does not start, disconnect the internal drives and start the computer. If the computer starts correctly, add devices, one-at-a-time until the overload situation is achieved and the faulty device is identified.
Memory error 1. Verify that memory modules are properly installed in the computer.
2. Check that memory modules are the design specified by
Compaq.
3. Try replacing memory modules with other known good modules.
Graphics solution error Replace the system board.
Plug and Play initialization error
Replace the system board.
Corrupted ROM BIOS Reflash the ROM BIOS.
Defective system board Replace the system board.
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BIOS Overview
Pre-boot diagnostics will only detect codes 3, 4, and 5 after a 15-second time-out.
If you miss the beep code, press and hold the power button for at least five seconds until the modulated sound is emitted again. This “playback” of the memorized code can also be used to diagnose an intermittent fault.
✎
Avoid disconnecting the computer’s power cord as this will delete some of the computer’s error diagnostic information encoded in the modulated audio signal.
BIOS Error Messages
Error Message on Screen
If your computer encounters a BIOS error, it will display a BIOS error message on the screen.
Sometimes, recommendations for troubleshooting are also displayed below the error message, or you need to press
Enter to get the recommendations.
The error message and recommendations (if provided) can be used to troubleshoot the problem.
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