HP Workstation x4000 Supplementary Guide

HP x4000 Service Information
x4000 System Board
Chapter 18
System Board Switches
The system board includes a 4-pole DIP switch, which lets you configure
BIOS functions. Because the switches are read only at system start up,
you must change the switch positions when the Workstation is shut
down.
Switch Function Default Comment
1
Clear BIOS
password
Off Clears both Administrator and User
passwords, if they have been set.
2
Boot block
recovery
Off
Forces a boot block recovery from a
bootable BIOS flash disk in the floppy
disk drive.
3
Clear CMOS
Off
ResetCMOSsettingstoBIOSdefaults.
You can also do this with the
F9 key in
the Setup program as described in
“Clearing the CMOS” on page 48.
4 Enable safe mode
Off
Forceprocessors torunat800MHz. This
can be used as a troubleshooting tool or
to correct a problem after adding a
second processor. Before using this, flash
the BIOS as described at
www.hp.com/workstations/support .Use
this switch as a last resort. If it gets the
system running, replace the processors.
If the problem persists, replace the
system board.

HP Workstation x4000 Specifications

General

Brand	HP
Model	Workstation x4000
Category	Desktop
Language	English