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3. To view the light path diagnostics panel, press the release latch on the front of
52
IBM System x3800 Type 8865: Installation Guide
Light path diagnostics
button
Fan 2
Fan 5
Fan 1
Microprocessor 1
socket
1
1
Microprocessor 2
socket
Microprocessor 1
error LED
Microprocessor 2
error LED
The following illustration shows the LEDs on the PCI-X board.
PCI attention LEDs
PCI power LEDs
Power good LED
the operator information panel to the left; then, slide it forward. This reveals the
light path diagnostics panel. Lit LEDs on this panel indicate the type of error that
has occurred.
Memory
card 1
Fan 3
Fan 6
Fan 7
2
2
4
4
Microprocessor 4 error LED
Microprocessor 4 socket
Memory
card 2
Memory
card 3
Fan 8
Memory
card 4
Microprocessor card
error LED
Fan 4
Microprocessor 3
VRM connector
Microprocessor 4
3
3
VRM connector
VRM 4 error LED
VRM 3 error LED
Microprocessor 3 error LED
Microprocessor 3 socket
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