Front panel and system board LEDs
The server does not contain a diagnostic or information panel. The system error LED is on the front panel inside the server. All of the remaining error LEDs are on the system board, adjacent to the failing components. See “Diagnostic LEDs” for information on identifying problems using these LEDs.
The meanings of these LEDs are as follows:
CPU1 | Microprocessor number 1 (connector U12) fault |
CPU2 | Microprocessor number 2 (connector U11) fault |
Fan 1 | Fan number 1 (connector J10) failure (see note 1) |
Fan 2 | Fan number 2 (connector J18) failure (see note 1) |
MEM1 | DIMM number 1 (connector J19) fault |
MEM 2 | DIMM number 2 (connector J21) fault |
MEM 3 | DIMM number 3 (connector J23) fault |
MEM 4 | DIMM number 4 (connector J26) fault |
VRM1 | Microprocessor VRM number 1 (connector J42) fault (see note 1) |
VRM2 | Microprocessor VRM number 2 (connector J12) fault (see note 1) |
Notes: |
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1.The fan and VRM LEDs will illuminate only if the optional system management adapter is installed in the server.
2.The server does not support
Diagnostic LEDs
You can use the diagnostic LEDs built into the server to quickly identify the type of system error that occurred. The server is designed so that LEDs remain illuminated when the server shuts down, as long as the power supply is operating properly. This feature helps you to isolate the problem if an error causes the server to shut down. To correct specific problems, see
System Error LED (on the front panel) | System board LED | Cause |
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On | None | The system error log is 75% or more |
A system error was detected. Check to |
| full or a Predictive Failure Analysis |
| (PFA) alert was logged. | |
see which of the LEDs on the system |
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board are on. |
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On | MEM1, MEM2, MEM3, or MEM4 | A memory error occurred. |
| (system board) |
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On | CPU1 or CPU2 (system board) | One of the microprocessors has failed, |
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| or a microprocessor is installed |
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| incorrectly. |
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On | Fan 1 or Fan 2 | One of the fans has failed or is |
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| operating too slowly. |
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On | VRM1 or VRM2 (system board) | One of the microprocessor VRMs has |
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| failed, or a microprocessor VRM is |
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| installed in the wrong connector. |
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