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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.
DIMM 1 error LED
(D27)
DIMM 2 error LED
(D26)
DIMM 3 error LED
(D29)
DIMM 4 error LED
(D28)
Microprocessor 2
error LED
(D32)
Fan 1
error LED
(D2)
Fan 2
error LED
(D19)
PCI fan error LED
(D55)
SCSI controller
status LED
(D45)
Center fan error
LED (SYSFAN4)
Table 2. Error LEDs
Error LED
Without optional Remote
Supervisor Adapter
With optional Remote
Supervisor Adapter
DIMM error (D26, D27, D28,
D29)
Memory problem (also turns
on system error LED on the
front bezel)
Memory problem (also turns
on system error LED on the
front bezel)
Microprocessor 2 error (D32)
Microprocessor 2 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 error (D2, D19, D55,
D56)
No function
Fan failure
Hard disk error (LEDs on
hot-swap hard disk drives)
Hot-swap hard disk drive
failure
Hot-swap hard disk drive
failure
8
IBM xSeries 225 Type 8647: Installation Guide
Summary of Contents for 8647 - Eserver xSeries 225
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