HP Integrity rx1620 Installation Guide, Second Edition - HP Integrity rx1620 - Page 52

Troubleshooting and FRU identification, Table 4-1, Problem Symptoms Repair Actions

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Troubleshooting Troubleshooting and FRU identification Troubleshooting and FRU identification Once you have determined the current system state, you must troubleshoot the system to determine what the problem symptoms are and what repair actions to take. Use this guide to assist you in repairing the system by matching the problem symptom with the appropriate troubleshooting step. Table 4-1 Problem Symptoms Repair Actions Problem or Symptom Problem Indicators Normal Functioning Indicators Troubleshooting Steps Potential FRUs No indication of housekeeping voltage present when AC is connected and power switch is in the off position. • Standby LED is off when AC is plugged into system. • BMC "heartbeat" not flashing. • Power LED Off. • Power LED on MP board (if installed) should be lit solid green. 1. AC must be present. Check that PDU is plugged in. 2. Ensure there is a working power supply. The LED on the supply should be lit. • Standby LED on system board is on steady. 3. Check for an EFI shell prompt (CTRL+B) at console. • No AC present • Power supply • Power distribution • System board • Display board • BMC "heartbeat" LED on system board is flashing.(if installed) should be lit solid green. 52 Chapter 4

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Chapter 4
Troubleshooting
Troubleshooting and FRU identification
52
Troubleshooting and FRU identification
Once you have determined the current system state, you must troubleshoot the system to determine what the
problem symptoms are and what repair actions to take.
Use this guide to assist you in repairing the system by matching the problem symptom with the appropriate
troubleshooting step.
Table 4-1
Problem Symptoms Repair Actions
Problem or
Symptom
Problem
Indicators
Normal
Functioning
Indicators
Troubleshooting Steps
Potential FRUs
No indication of
housekeeping
voltage present
when AC is
connected and
power switch is
in the off
position.
• Standby
LED is off
when AC is
plugged into
system.
• BMC
“heartbeat”
not flashing.
• Power LED Off.
• Power LED on
MP board (if
installed) should
be lit solid green.
• Standby LED
on system board
is on steady.
• BMC
“heartbeat” LED
on system board
is flashing.(if
installed) should
be lit solid green.
1. AC must be present. Check
that PDU is plugged in.
2. Ensure there is a working
power supply. The LED on the
supply should be lit.
3. Check for an EFI shell
prompt (
CTRL+B
) at console.
• No AC present
• Power supply
• Power
distribution
• System board
• Display board