IBM Netfinity 5100 8658 21Y, Manual

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feature helps you isolate the problem if an error causes the
server to shut down. See “Light path diagnostics table”.
Power supply LEDs
The AC and DC Power LEDs on the power supply provide
status information about the power supply. See “Power
supply LED errors” on page 170.
Diagnostics panel
The following illustration shows the LEDs on the
diagnostics panel on the system board. See “Light path
diagnostics table” below for information on identifying
problems using these LEDs.
DASD2
DASD1
VRM
PCI A
PCI B
CPU
MEM
FAN
TEMP
NMI
OVER
NON
PS3
PS2
PS1
Light path diagnostics table
The System Error LED on the operator information panel is
lit when certain system errors occur. If the System Error
LED on your server is lit, use the table in “Information
panel system error LED” on page 162 to help determine
the cause of the error and the action you should take.
Diagnostics
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