HP Vectra VE 5/xxx HP Vectra VE 5/xx Series 2, User's Guide - Page 90

Clearing the Battery Backed-Up Memory CMOS Memory

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5 Troubleshooting Your PC If Your PC Does Not Start Properly If the PC then starts, but POST still reports an error, clear the battery backed-up memory (CMOS memory). Clearing the Battery Backed-Up Memory (CMOS Memory) If the PC then starts, but POST still persists in reporting an error, clear the current CMOS memory values and reinstall the built-in default values: 1 Turn off the PC, disconnect the power and cables, and remove the cover. a Set the system board switch 6 (CMOS STATUS) to CLOSED to clear the configuration. b Replace the cover, and reconnect the power and cables. c Turn on the PC. This will erase the CMOS memory d Wait until the PC has started. The screen will flash with a message similar to this: "Configuration has been cleared, set switch 6 to the OPEN position before rebooting." Turn off the PC, disconnect the power and cables, and remove the cover. e Set the system board switch 6 (CMOS STATUS) on the switch block to OPEN to re-enable the configuration. 2 Replace the cover, and reconnect the power and cables. 3 Switch on the PC. An error message will be displayed similar to this: "System CMOS checksum bad - run SETUP" The PC will stop. 4 Run Setup by pressing . CMOS default values will be automatically downloaded and saved. 5 Make any other changes you want and press configuration and exit from Setup. to save the 78 English

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5
Troubleshooting Your PC
If Your PC Does Not Start Properly
78
English
If the PC then starts, but POST still reports an error, clear the battery
backed-up memory (CMOS memory).
Clearing the Battery Backed-Up Memory (CMOS Memory)
If the PC then starts, but POST still persists in reporting an error, clear
the current CMOS memory values and reinstall the built-in default
values:
1
Turn off the PC, disconnect the power and cables, and remove the
cover.
a
Set the system board switch 6 (CMOS STATUS) to CLOSED to
clear the configuration.
b
Replace the cover, and reconnect the power and cables.
c
Turn on the PC. This will erase the CMOS memory
d
Wait until the PC has started. The screen will flash with a message
similar to this:
“
Configuration has been cleared, set switch 6 to the OPEN
position before rebooting.”
Turn off the PC, disconnect the power and cables, and remove
the cover.
e
Set the system board switch 6 (CMOS STATUS) on the switch
block to OPEN to re-enable the configuration.
2
Replace the cover, and reconnect the power and cables.
3
Switch on the PC. An error message will be displayed similar to this:
“System CMOS checksum bad - run SETUP”
The PC will stop.
4
Run
Setup
by pressing
. CMOS default values will be
automatically downloaded and saved.
5
Make any other changes you want and press
to save the
configuration and exit from
Setup
.