Chapter 6
Troubleshooting
Troubleshooting Using LED Indicators
129
QuickFind Diagnostic Panel LEDs
The QuickFind diagnostic panel is located under the top cover and is attached to the top of the power supply cage. The
following definitions describe the status of the various LEDs and what is wrong with the indicated component.
Table 6-2 QuickFind Diagnostic Panel LED Definitions
Item LED 0 LED 1 LED 2 LED3 Details
Processor Socket 0 Socket 1 Socket 2 Socket 3 If the System LED (on front panel) is in the
attention or fault state and the processor LED is on,
then the processor or voltage regulator has
failed—the processor module in the specified
socket needs to be replaced.
If the thermal LED is in the warning or critical
state and the processor LED is on, then the
processor exceeded the warning or critical level.
Subsystem CPU
board
Memory
board
I/O board n/a A soldered voltage regulator has failed—the
specified board must be replaced.
I/O VRM 12 volt 5 volt 3 volt n/a A plug-in voltage regulator has failed—specific
VRM must be replaced.
CPU VRM n/a n/a n/a n/a n/a
Fan Module 0 1 2 n/a One or both fans in a fan module have failed—the
module must be replaced.
Fan 2 is in front of the power supplies.
Memory Bank
X (0-7)
DIMM
xA
DIMM
xB
DIMM
xC
DIMM
xD
The specified DIMM has failed—the DIMM must
be replaced.
If all the LEDs for a rank (0-7) are lit and the
memory config error LED is lit, then the DIMMs
in the specified rank are mismatched—replace
mismatched DIMM.
Check Power
Supply
n/a n/a n/a One of the power supply or power supply fans
have failed—replace the power supply. The faulty
power supply LED (located on Power supply) will
be lit.
Memory
Config Error
n/a n/a n/a The DIMMs in a rank are mismatched. All the
DIMMs in the specified rank (0-7) will be lit.
Processor
Config Error
n/a n/a n/a The processors are mismatched—replace
mismatched processor.
Missing
Component
n/a n/a n/a A required component(s) is not installed in the
system and thus preventing “power-up.”
System Temp n/a n/a n/a The internal temperature of the server has
exceeded the warning or critical level.
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