Diagnostics Panel; Light Path Diagnostics Table - IBM Netfinity 4500R User Reference Manual

Diagnostics panel

The following illustration shows the LEDs on the diagnostics panel on the system
board. See "Light path diagnostics" on page 134 for information on identifying
problems using these LEDs.

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 following table to
help determine the cause of the error and the action you should take.
Lit LED on
diagnostics
panel
None The Advanced System Management
Processor has failed.
PS1 Power supply 1 has failed.
PS2 Power supply 2 has failed.
NON Power supply redundancy has been lost.
Note:
Table 19. Light path diagnostics
Cause
This LED will not be lit if your
server has only one power supply;
however, the power is not
redundant with only one power
supply installed.
PS1
PS2
PS3
NON
OVER
NMI
TEMP
FAN
MEM
CPU
PCI A
PCI B
VRM
DASD1
DASD2
Verify that the Advanced System
Management Processor LED on the system
board is on. Have the system serviced.
Replace power supply 1.
Replace power supply 2.
Check the PS1 and PS2 LEDs and replace the
indicated power supply. If neither LEDs is
lit, you can remove optional devices from
the server to restore power supply
redundancy.
Action
Chapter 7. Solving problems
135