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Chapter 4 Troubleshooting - HP xw series Setup And Troubleshooting Manual

Workstations.
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Table 4-3
Diagnostic lights and audible codes (continued)
Activity
Red Power LED blinks five
times, once every second,
followed by a two-second
pause. Five beeps.
Red Power LED blinks six
times, once every second,
followed by a two-second
pause. Six beeps.
Red Power LED blinks
seven times, once every
second, followed by a two-
second pause. Seven
beeps.
30

Chapter 4 Troubleshooting

Possible cause
Pre-video memory error
Pre-video graphics error.
System board failure (ROM
detected failure prior to
video).
Recommended action
NOTE:
Memory connector pin configurations vary, and can
have either a 4–pin, 6–pin, or 8–pin configuration, depending
on workstation series and model.
2.
Check if a device is causing the problem by removing all attached
devices (such as hard, diskette, or optical drives, and expansion
cards.) Power on the system. If the system enters the POST, power
off and replace one device at a time; repeat this procedure until
failure occurs. Replace the device that is causing the failure.
Continue adding devices one at a time to ensure all devices are
functioning properly.
3.
Check the power supply functionality.
a. Disconnect the AC power.
b. Disconnect ALL internal power supply cables.
c. Plug in the AC power.
If the power supply fan spins and the BIST* LED lights, the power supply
is functional. The problem might be on the system board. Contact HP for
assistance.
If the power supply fan does not spin or the BIST* LED does not light, the
problem might be in the power supply. Contact HP for assistance.
CAUTION:
Internal components might be powered even when the
system is off. To prevent damage, disconnect the workstation power cord
before you remove a component.
1.
Reseat DIMMs.
2.
Replace DIMMs one at a time to isolate faulty module.
3.
Replace third-party memory with HP memory.
4.
The problem might be on the system board. Contact HP for
assistance.
CAUTION:
Internal components might be powered even when the
system is off. To prevent damage, disconnect the workstation power cord
before you remove a component.
1.
Reseat the graphics card.
2.
The problem might be on the graphics card. Contact HP for
assistance.
1.
Clear CMOS.
NOTE:
Refer to the Service and Technical Reference Guide for
your workstation model for detailed information on clearing CMOS.
2.
The problem might be on the system board. Contact HP for
assistance.
ENWW

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