IBM 8668 Hardware Maintenance Manual - Page 53

System board LED locations

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System board LED locations The following illustrations identify LEDs, diagnostic panels, and the Remind button on the system board. You might need to refer to this illustration when solving problems with the server. VRM 1 error LED (CR19) DIMM 4 error LED (CR15) DIMM 3 error LED (CR14) DIMM 2 error LED (CR17) DIMM 1 error LED (CR16) Microprocessor 1 error LED (CR13) Heat sink 1 LED (CR78) Microprocessor 2 error LED (CR20) Heat sink 2 LED (CR79) VRM 2 error LED (CR18) Light Path Diagnostics panel Remind button Integrated system management processor LED (CR70) Notes: 1. The power-on LED located on the operator information panel is lit when system power is present in the server. 2. The illustrations in this document might differ slightly from your hardware. Installing options 45

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System board LED locations
The following illustrations identify LEDs, diagnostic panels, and the Remind
button on the system board. You might need to refer to this illustration when
solving problems with the server.
DIMM 4 error LED
(CR15)
DIMM 3 error LED
(CR14)
DIMM 2 error LED
(CR17)
DIMM 1 error LED
(CR16)
Light Path
Diagnostics panel
Microprocessor 2
error LED (CR20)
Heat sink 1 LED
(CR78)
Heat sink 2 LED
(CR79)
Microprocessor 1
error LED (CR13)
VRM 2 error LED
(CR18)
VRM 1 error LED
(CR19)
Remind button
Integrated system
management processor
LED (CR70)
Notes:
1.
The power-on LED located on the operator information panel is lit when
system power is present in the server.
2.
The illustrations in this document might differ slightly from your hardware.
Installing options
45