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v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
LED Description Action
RAID A RAID controller error has occurred.
1. Make sure that a RAID controller is installed.
Note: The server will not start without a RAID controller
installed.
2. Check the system-error log for information about the error.
(Use the Configuration/Setup Utility program to view the
error logs.)
FAN A fan has failed, is operating too slowly,
or has been removed. The TEMP LED
might also be lit.
Replace the failing fan, which is indicated by a lit LED on the
fan itself.
TEMP The system temperature has exceeded
a threshold level. A failing fan can
cause the TEMP LED to be lit.
1. Determine whether a fan has failed. If it has, replace it.
2. Make sure that the room temperature is not too high. See
“Features and specifications” on page 3 for temperature
information.
3. Make sure that the air vents are not blocked.
4. Call for service.
BRD An error has occurred on the system
board.
1. Check the LEDs on the system board to identify the
component that is causing the error.
2. Check the system-error log for information about the error.
(Use the Configuration/Setup Utility program to view the
error logs.)
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.
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.
(Use the Configuration/Setup Utility program to view the
error logs.)
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.
80 ThinkServer RD120 Types 6444, 6445, 6446, and 6447: Installation Guide