IBM 5000 - Manual (Page 162)

Identifying Problems Using Status LEDs
LED Diagnostics
The diagnostics built into your Netfinity 5000 server allow you to quickly identify the
type of system error that occurred. When the System Error LED on the information
LED panel is illuminated, use the following information to isolate the problem. An
error message usually appears on the display monitor as well.
If the System Error LED on the information LED panel on the front of the
Netfinity 5000 server is on, a system error was detected. Check the LEDs on
the power supplies and at any Ethernet adapters, then open the cover and
check to see which of the LEDs on the system board inside the Netfinity 5000
server are on. (See “System Board LEDs” on page 168 for the location of the
LEDs.)
System Board LED Description
Service Processor Error LED
on An error has occurred in the service processor.
Actions: If the problem persists, have the system serviced.
NMI LED on A non-maskable interrupt occurred. The PCI 1 or PCI 2 LED
will probably also be on.
Actions:
1. If the PCI 1 or PCI 2 LED is on, follow the
instructions for those LEDs.
2. If the PCI 1 or PCI 2 LED is not on, restart the
Netfinity 5000 server. If the problem persists (the
NMI LED stays on), have the system serviced.
SMI LED on A system-management interrupt occurred. This is an indication
of service processor activity, and is not an error.
Actions: No action is required.
PCI 1 LED on An error occurred on PCI bus 0. An adapter in PCI slot 5 or the
system board caused the error.
Actions: Check the error log for additional information. If the
error log indicates a problem with the integrated
Ethernet controller, have your system serviced.
If the problem persists, have the system serviced.
PCI 2 LED on An error occurred on PCI Bus 1. An adapter in PCI slot 1, 2, 3,
or 4 or the system board caused the error.
Actions:
1. Check the error log for additional information.
2. If you cannot correct the problem from the
information in the error log, try to determine the
failing adapter by removing one adapter at a time
from the secondary PCI bus (PCI slots 1–4) and
restarting the Netfinity 5000 server after each
adapter is removed.
If the problem persists, have the system serviced.
DIMM 1 Error LED on The DIMM in DIMM slot 1 has failed.
Action: Replace the DIMM in DIMM slot 1.
DIMM 2 Error LED on The DIMM in DIMM slot 2 has failed.
Action: Replace the DIMM in DIMM slot 2.
DIMM 3 Error LED on The DIMM in DIMM slot 3 has failed.
Action: Replace the DIMM in DIMM slot 3.
DIMM 4 Error LED on The DIMM in DIMM slot 4 has failed.
Action: Replace the DIMM in DIMM slot 4.
154 Netfinity 5000 Server Hardware Information and Procedures