vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.
vSee the Problem Determination and Service Guide on the IBM System x Documentation CD to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.
Lit light path |
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diagnostics LED with |
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the |
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information LED also |
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lit | Description | Action | |
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TEMP | A system temperature or component | 1. | See the BMC log or the |
| has exceeded specifications. |
| Problem Determination and Service Guide on the |
| Note: A fan LED might also be lit. |
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| IBM System x Documentation CD) for the source | |
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| of the fault. |
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| 2. | Make sure that the airflow in the server is not |
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| blocked. |
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| 3. | If a fan LED is lit, reseat the fan. |
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| 4. | Replace the fan for which the LED is lit. |
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| 5. | Make sure that the room is neither too hot nor too |
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| cold (see “Environment” in “Features and |
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| specifications” on page 5). |
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CPU | A microprocessor has failed, is | 1. | Check the BMC log or the |
| missing, or has been incorrectly | ||
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| determine the reason for the lit LED. | |
| installed. |
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| 2. | Find the failing, missing, or mismatched | |
| Note: (Trained service technician | ||
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| microprocessor by checking the LEDs on the | |
| only) Make sure that the |
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| system board. | |
| microprocessors are installed in the |
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| 3. | (Trained service technician) Reseat the failing | |
| correct sequence. | ||
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| microprocessor. |
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| 4. | Replace the following components one at a time, |
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| in the order shown, restarting the server each time: |
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| a. (Trained service technician only) Failing |
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| microprocessor |
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| b. (Trained service technician only) System board |
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S_ERR | Reserved |
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VRM | A | 1. | Check the BMC log or the |
| missing. | ||
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| determine the reason for the lit LED (for a VRM). | |
| Note: This error is for either the |
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| 2. | Find the failing or missing VRM by checking the | |
| VRM or integrated VRD. If the VRD | ||
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| LEDs on the system board. | |
| has failed, the system board must |
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| 3. | Install any missing VRMs. | |
| be replaced by an trained service | ||
| technician. | 4. | Reseat the following components: |
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| a. Failing VRM |
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| b. (Trained service technician only) |
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| Microprocessor associated with the VRM |
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| 5. | Replace the following components one at a time, |
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| in the order shown, restarting the server each time: |
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| a. Failing VRM |
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| b. (Trained service technician only) |
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| Microprocessor associated with the VRM |
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| c. (Trained service technician only) System board |
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