Table 11. Light path diagnostics panel LEDs (continued)
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v
If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
LED
Description
Action
PCI
An error has occurred on a PCI
card or a PCI bus.
1.
Check if any PCI slot error LED is lit to identify the
component that caused the error.
2.
Check the system-error log for information about the
error (see “Event logs” on page 144).
3.
If you cannot isolate the failing component by using the
LEDs and the information in the system-event logs,
remove one component at a time; and restart the server
after each component is removed.
4.
If the failure remains, go to http://www.ibm.com/
supportportal.
NMI
A nonmaskable interrupt has
occurred, or the NMI button was
pressed.
1.
Check the system-event logs for information about the
error (see “Event logs” on page 144).
2.
Restart the server.
System board
An error has occurred on the
system battery, the
microprocessor 2 expansion
board, the power paddle card, or
the system board.
1.
Check the LEDs on the system board to identify the
component that caused the error. The System board LED
can be lit due to any of the following reasons:
v
Battery (see “Removing the system battery” on page
262 and “Installing the system battery” on page 263).
v
Microprocessor 2 expansion board (see “Removing the
microprocessor 2 expansion board” on page 326 and
“Installing the microprocessor 2 expansion board” on
page 328).
v
Power paddle card (see “Removing the power paddle
card” on page 311 and “Installing the power paddle
card” on page 313).
v
(Trained technician only) System board (see
“Removing the system board” on page 336 and
“Installing the system board” on page 339).
2.
Check the system-event logs for information about the
error.
3.
Replace the failing component:
v
Battery
v
Microprocessor 2 expansion board
v
Power paddle card
v
(Trained technician only) System board
Look at the system service label on the top of the server, which gives an overview
of internal components that correspond to the LEDs on the light path diagnostics
panel. This information can often provide enough information to diagnose the
error.
Chapter 4. Troubleshooting
141
Summary of Contents for 7383
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