Power Problems; System-Board Error Leds - IBM 8647 - Eserver xSeries 225 Installation Manual

Power problems

Power symptom
The server does not turn on.

System-board error LEDs

The following illustration shows the LEDs on the system board. You might need to
refer to this illustration when solving problems with the server.
Fan 1
error LED
(D2)
Fan 2
error LED
(D19)
Microprocessor 2
error LED
(D32)
Each error LED is lit to indicate a problem with a specific component. After a
problem is corrected, its LED will not be lit the next time the server is restarted; if
the problem remains, the LED will be lit again. See the User's Guide on the IBM
xSeries Documentation CD for additional information.
Suggested action
Verify that:
v The power cords are properly connected to the server.
v The electrical outlet functions properly.
v The type of memory installed is correct.
v If you just installed an option, remove it, and restart the server. If the server now
turns on, you might have installed more options than the power supply supports.
If the problem remains, call for service.
PCI fan error LED
(D55)
Table 6. Error LEDs
Error LED
DIMM error (D26, D27, D28,
D29)
Microprocessor 2 error (D32) Microprocessor 2 problem
Fan error (D2, D19, D55)
Hard disk error (LEDs on
hot-swap hard disk drives)
DIMM 1 error LED
(D27)
DIMM 2 error LED
(D26)
DIMM 3 error LED
(D29)
DIMM 4 error LED
(D28)
SCSI controller
status LED
(D45)
Center fan error
LED (SYSFAN4)
Without optional Remote
Supervisor Adapter
Memory problem (also turns
on system error LED on the
front bezel)
(also turns on system error
LED on the front bezel)
No function
Hot-swap hard disk drive
failure
With optional Remote
Supervisor Adapter
Memory problem (also turns
on system error LED on the
front bezel)
Microprocessor 2 problem
(also turns on system error
LED on the front bezel)
Fan failure
Hot-swap hard disk drive
failure
Chapter 6. Solving problems
59