Light Path Led Errors - IBM 8862 - Eserver xSeries 365 Maintenance And Troubleshooting Manual

Light path LED errors

Before replacing any FRU:
1. Observe LEDs on boards.
2. View system-error log.
Note: See Chapter 7, "Parts listing, Types 8861, 8862," on page 139 to determine which components are
replaceable by the customer and which components must be replaced by an IBM field service technician.
Light path LED
All LEDs off (error log full)
Note: "Information" LED may be lit.
PS1
PS2
TEMP (temperature too high)
FAN (fan failure)
Note: A failing fan can also cause
the OVER TEMP and DASD LEDs
to be on.
VRM (VRM failure)
FRU/action
1. System-Error log is 75% full; analyze the log entries to determine the
nature of the error messages.
2. Save and/or clear the log.
3. For a PFA alert, check error log for failures.
4. To clear a PFA alert; remove ac power for at least 20 seconds; then,
reconnect and power up system.
1. Power supply 1
2. Power backplane
1. Power supply 2
2. Power backplane
1. Check the following LEDs:
a. If a fan LED is on, replace the fan.
b. If a power supply fan LED is on, replace the power supply.
2. Ambient temperature must be within normal operating specifications. See
"Features and specifications" on page 3
3. Examine System Error log.
a. System over recommended temperature
b. DASD over recommended temperature
1) Overheating hard disk drive
2) DASD backplane
c. Microprocessor x over recommended temperature (where x is
microprocessor number)
1) Reseat microprocessor x and heat sink.
2) Microprocessor x.
d. Power supply fault / over temp
v Failing power supply
e. Operator information panel
1. Check the following LEDs:
a. If an individual fan LED is on, replace the fan.
b. If an individual power supply fan LED is on, replace the power supply.
2. Microprocessor tray assembly.
1. Check event log to determine location of failing LED (VRM).
2. VRM 3-4.
3. Microprocessor tray assembly.
Chapter 6. Symptom-to-FRU index
93