System-Board Led Locations - IBM Xseries 345 8670 Maintenance Manual

System-board LED locations

The following illustration shows the location of the LEDs on the system board. You
might need to refer to this illustration when solving problems with the server.
DIMM 1 error LED
(CR12)
DIMM 2 error LED
(CR15)
DIMM 3 error LED
(CR14)
DIMM 4 error LED
(CR13)
Integrated System Management
Processor (ISMP) activity
LED (CR41)
VRM 2 error LED
(CR16)
Microprocessor 2
error LED (CR17)
Microprocessor 1
error LED (CR18)
VRM 1 error LED
(CR19)
SCSI controller
activity LED (CR 40)
Chapter 4. Customer replaceable units
49