Hard Failures - HP 3000 Series Handbook

For HP Internal Use Only
Hard Failures
Hard failures are solid failures. They usually occur during selftest and system initialization,
and halt the system. The steps to take when troubleshooting a hard failure are to:
• Determine the environment.
• Follow the appropriate procedure.
• Replace the failed part.
To determine the environment, do the following:
• Check the indicator LEDs on the Front Panel (Table 5-1).
• Check the operating state and chassis code displayed on the console (Table 5-l).
• Check the indicator LEDs on I/0 cards or peripherals (Table 5-2).
• Decode the PIM dump when an HPMC occurs (Table 5-13).
Once you have observed the status of the front panel LEDs and the system status and
chassis code on the console banner, use the procedures in the following sections to isolate the
failure. For most failures, these procedures should help you to isolate the problem to the field
replaceable unit (FRU).
5-2 Troubleshooting