IBM 866631Y Hardware Maintenance Manual - Page 141

Power supply LED errors, POST error codes, Description, FRU/Action, Check ac power to system.

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Power supply LED errors Use the power supply LED information on the following page to troubleshoot power supply problems. Note: The minimum configuration required for the DC Good light to come on is: v Power Supply v Power Backplane v Processor/PCI Board (with pins 2 and 3 on J23 connected together to bypass the power switch; see "Processor board jumpers" on page 42). v Processor/PCI Board (Verify that Processor/PCI Board and I/O Legacy Board are properly connected together; see "Processor board component locations" on page 41. AC Good LED Off On On DC Good LED Off Off On Description No power to system or ac problem. Standby mode or dc problem. Power is OK. FRU/Action 1. Check ac power to system. 2. Power Supply 1. Move jumper on J23 to pins 2-3 to bypass power control. If the DC Good LED comes on, press Ctrl+Alt+Delete. Watch the screen for any POST errors. Check the System Error Log for any listed problems. If the system powers up with no errors: a. Power Switch Assembly 2. Remove the adapters and disconnect the cables and power connectors to all internal and external devices. Power-on the system. If the DC Good LED comes on, replace the adapters and devices one at a time until you isolate the problem. 3. Power Supply 4. Power Backplane 5. I/O Legacy Board 6. Processor Board N/A POST error codes In the following error codes, X can be any number or letter. Error Code/Symptom 062(Three consecutive boot failures using the default configuration.) 101, 102(System and processor error) FRU/Action 1. Run Configuration/Setup 2. Battery 3. I/O Legacy Board 4. Processor/PCI Board 5. Processor 1. I/O Legacy Board 2. Processor/PCI Board Symptom-to-FRU index 131

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Power supply LED errors
Use the power supply LED information on the following page to troubleshoot
power supply problems.
Note:
The minimum configuration required for the DC Good light to come on is:
v
Power Supply
v
Power Backplane
v
Processor/PCI Board (with pins 2 and 3 on J23 connected together to
bypass the power switch; see “Processor board jumpers” on page 42).
v
Processor/PCI Board (Verify that Processor/PCI Board and I/O Legacy
Board are properly connected together; see “Processor board component
locations” on page 41.
AC
Good
LED
DC
Good
LED
Description
FRU/Action
Off
Off
No power to system or ac
problem.
1.
Check ac power to system.
2.
Power Supply
On
Off
Standby mode or dc
problem.
1.
Move jumper on J23 to pins 2-3 to bypass
power control. If the DC Good LED
comes on, press Ctrl+Alt+Delete. Watch
the screen for any POST errors. Check the
System Error Log for any listed problems.
If the system powers up with no errors:
a.
Power Switch Assembly
2.
Remove the adapters and disconnect the
cables and power connectors to all
internal and external devices. Power-on
the system. If the DC Good LED comes
on, replace the adapters and devices one
at a time until you isolate the problem.
3.
Power Supply
4.
Power Backplane
5.
I/O Legacy Board
6.
Processor Board
On
On
Power is OK.
N/A
POST error codes
In the following error codes,
X
can be any number or letter.
Error Code/Symptom
FRU/Action
062
(Three consecutive boot
failures using the default
configuration.)
1.
Run Configuration/Setup
2.
Battery
3.
I/O Legacy Board
4.
Processor/PCI Board
5.
Processor
101, 102
(System and processor
error)
1.
I/O Legacy Board
2.
Processor/PCI Board
Symptom-to-FRU index
131