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| Troubleshooting | |
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| Using the System Board LEDs for Troubleshooting | |
Table | ||||
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LED Name1 | Solution |
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| State |
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FANS | OFF or | If the following solutions do not bring the LED back on |
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| blink | or cause it to properly blink, replace the system board. |
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| sequence 4, | OFF | Unplug the system and replace the |
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| 5 or 6 |
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| system board |
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| Blink Sequence 4 Unplug the system and operate the |
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| unit when its environment gets |
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| cooler |
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| Blink Sequence 5 Replace the fan associated with the |
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| message in your system LCD. If |
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| power supply fans are bad, you have |
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| to replace the power supply. If the |
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| PCI fan is bad, replace it. If either |
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| one of the processor fans are bad, you |
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| must replace the system board. Note, |
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| fans may still be spinning, but their |
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| control signal may have failed. |
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| Blink Sequence 6 Check that the |
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| signal cable is properly connected |
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| Press the power button off and |
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| unplug the system and wait for two |
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| minutes before turning the system |
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| back on |
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SHORT | ON | If the following solutions do not turn this LED off, |
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| replace the system board. |
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| • Check that no pieces of metal are shorting |
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| connections anywhere in the system |
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| • Check that no pins on system connectors are bent |
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| and touching each other |
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1.The LEDs are in the OFF state, or in the case of the FANS LED, the LED is blinking sequence 1, 2, or 6 or it is not blinking.
Chapter 2 | 73 |
