System Board
System Board Component Layout
Chapter 2
28
System Board Switches
The system board includes a 4-pole DIP switch (shown in Figure 2-2),
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.
Architectural Diagram
Figure 2-3 enumerates the x4000 system board features:
1. One or two dp Xeon processors
2. Intel 860 memory controller hub (MCH)
3. Memory expansion card
4. Intel 82806 PCI 64-bit Hub (P64H) connected to 16-bit Hublink B
5. Intel 82801BA interface controller hub (ICH2) connected to 8-bit
Hublink A
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
Reset CMOS settings to BIOS defaults.
You can also do this with the
F9
key in
the Setup program as described in
“Clearing the CMOS” on page 46.
4
Enable safe mode
Off
Force processors to run at 800 MHz. 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.
This manual downloaded from http://www.manualowl.com
Summary of Contents for Workstation x4000
Page 11: ...Chapter 1 11 1 System Overview This manual downloaded from http www manualowl com ...
Page 25: ...Chapter 2 25 2 System Board This manual downloaded from http www manualowl com ...
Page 43: ...Chapter 4 43 4 System BIOS and Resources This manual downloaded from http www manualowl com ...
Page 81: ...Chapter 6 81 6 Power Specifications This manual downloaded from http www manualowl com ...
Page 93: ...Chapter 7 93 7 Connector Pin Outs This manual downloaded from http www manualowl com ...
Page 121: ...Chapter 8 121 8 Mechanical Specifications This manual downloaded from http www manualowl com ...
Page 125: ...Chapter 9 125 9 Hardware Components This manual downloaded from http www manualowl com ...
Page 203: ...Chapter 11 203 11 Troubleshooting This manual downloaded from http www manualowl com ...
Page 231: ...Chapter 12 231 12 Contacting Support This manual downloaded from http www manualowl com ...