Lenovo ThinkServer RD220 Hardware Maintenance Manual page 46

LED Problem
LINK Reserved.
A power supply has failed.
PS
PCI An error has occurred on a PCI bus or
on the system board. An additional LED
will be lit next to a failing PCI slot.
SP The service processor (the RMM) has
failed.
FAN A fan has failed, is operating too slowly,
or has been removed. The TEMP LED
might also be lit.
TEMP The system temperature has exceeded
a threshold level. A failing fan can
cause the TEMP LED to be lit.
MEM A memory error has occurred.
NMI A non-maskable interrupt has occurred,
or the NMI button has been pressed.
CNFG A hardware configuration error has
occurred.
CPU A microprocessor has failed.
VRM Reserved.
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ThinkServer RD220 Hardware Maintenance Manual
Action
1. Check the power supply LEDs for an error indication (AC LED
and DC LED are not both lit).
2. Make sure that the failing power supply is correctly seated.
3. Replace the failed power supply.
1. Check the LEDs on the PCI slots to identify the component
that is causing the error.
2. Check the system-error log for information about the error.
3. If you cannot isolate the failing adapter through the LEDs and
the information in the system-error log, remove one adapter
at a time from the failing PCI bus, and restart the server after
each adapter is removed.
4. Call for service.
1. Remove power from the server; then, reconnect the server to
power and restart the server.
2. Update the firmware on the RMM.
3. Call for service
Replace the failing fan, which is indicated by a lit LED near the
fan connector on the system board.
Note: If an LED that is next to an unused fan connector on the
system board is lit, a PCI riser-card assembly might be missing:
replace the PCI riser-card assembly. Both PCI riser-card
assemblies must always be present.
1. Check the error log to identify where the over-temperature
condition was measured. If a fan has failed, replace it.
2. Make sure that the room temperature is not too high. See
"Features and technologies" on page 13 for temperature
information.
3. Make sure that the air vents are not blocked.
4. Call for service.
Replace the failing DIMM, which is indicated by the lit LED on
the system board.
Check the system-error log for information about the error.
1. Check the microprocessors that were just installed to make
sure that they are compatible with each other (see the
Installation and User Guide).
2. (Trained service technician only) Replace an incompatible
microprocessor.
3. Check the system-error logs for information about the error.
Replace any components that are indicated.
1. Make sure that the failing microprocessor, which is indicated
by a lit LED on the system board, is installed correctly. See
Installing a microprocessor and heat sink for information
about installing a microprocessor.
2. Make sure that the ServeRAID SAS controller is installed
and correctly seated. Make sure that the battery for the
ServeRAID SAS controller is installed correctly.
3. Call for service.