HP Workstation x4000, Technical Reference Manual

Page: 220 / 238

Troubleshooting
Understanding the Diag LEDs
Chapter 11 220
●
R
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The BIOS cannot load. 1. Try using a known good keyboard
in place of the current keyboard.
Replace the keyboard if the error
goes away.
2. Try removing the floppy disk drive,
the optical drives, and any other
IDE devices one at a time,
restarting the Workstation each
time. If it appears that one device
is causing the error, replace it.
3. Try removing the I/O cards one at a
time, restarting the Workstation
each time. If it appears that one
card is causing the error, replace it.
4. Reseat the RIMMs.
5. Remove the RIMMs. If the error
goes away or changes, replace the
RIMMs as described in “System
Memory” on page 159.
6. If a second processor was just
added, remove the second
processor and restart the
Workstation. If the error goes away,
replace the second processor with
one that is identical to the first
processor as described in
“Processor” on page 177.
7. Replace the system board as
described in “System Board” on
page 186.
Table 11-1 Diag LED Patterns (R = Red, Y = Yellow, G = Green,
●
= Off)
Pattern Description
Possible Solutions
a
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