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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 If an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.
Lit EasyLED |
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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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CPU 2 error LED | Microprocessor 2 has failed, is | 1. Check the | |
| missing, or has been incorrectly | ||
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| 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; see “Removing a | ||
| microprocessor and heat sink” on |
| microprocessor. |
| page 218 | 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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CPU mismatch LED | A mismatched microprocessor has | 1. Run the Setup Utility and view the microprocessor | |
| been installed. | ||
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| information to compare the installed | |
| Note: All microprocessors must |
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| microprocessor specifications. | |
| have the same speed and cache |
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| 2. (Trained service technician only) Remove and | ||
| size. | ||
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| replace one of the microprocessors so that they | |
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| both match. |
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VRM failure LED | Microprocessor 2 VRM has failed or | 1. | Reseat the VRM |
| is incorrectly installed. | 2. 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. VRM |
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| b. (Trained service technician only) System board |
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| 3. | Replace the VRM |
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(Trained service technician only) Replace the system | |||
LED | voltage regulators, or both have | board. | |
| failed. |
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Battery failure LED | Battery low. | 1. Replace the CMOS lithium battery, if necessary. | |
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| 2. (Trained service technician only) Replace the | |
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| system board. |
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IMM heartbeat LED | Indicates the status of the boot | If the LED does not begin flashing within 30 seconds | |
| process of the IMM. | of when the server is connected to power, do the | |
| When the server is connected to | following: | |
| 1. (Trained service technician only) Use the IMM | ||
| power this LED flashes quickly to | ||
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| recovery switch to recover the firmware (see | |
| indicate that the IMM code is |
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| loading. When the loading is |
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| 133). | |
| complete, the LED stops flashing |
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| 2. (Trained service technician only) Replace the | ||
| briefly and then flashes slowly to | ||
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| system board. | |
| indicate that the IMM if fully |
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| operational and you can press the |
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| server. |
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Chapter 6. Locating Server Controls and connectors 137