Chapter 5 Troubleshooting the System Hardware
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Table | POST Diagnostic Front Panel LEDs and Beep Codes (continued) | |||||
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Activity |
| Beeps | Possible Cause | Recommended Action | ||
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Red Power LED flashes two | 2 | Processor thermal | 1. | Ensure that the computer air | ||
times, once every second, |
| protection activated: A fan |
| vents are not blocked and | ||
followed by a |
| may be blocked or not |
| the processor cooling fan is | ||
pause. Beeps stop after fifth |
| turning or the heatsink/fan |
| running. | ||
iteration but LEDs continue |
| assembly is not properly | 2. | Open hood, press power | ||
until problem is solved. |
| attached to the processor. | ||||
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| button, and see if the | ||||
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| processor fan spins. If the | |
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| processor fan is not | |
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| spinning, make sure that the | |
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| fan’s cable is plugged onto | |
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| the system board header. | |
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| 3. | If the fan is plugged in, but it | |
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| is not spinning, the fan | |
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| assembly is faulty. | |
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| 4. | Contact Cisco TAC. | |
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Red Power LED flashes | 3 | Processor not installed (not | 1. | Check to see that the | ||
three times, once every |
| an indicator of bad |
| processor is present. | ||
second, followed by a |
| processor). | 2. | Reseat the processor. | ||
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| 3. | Contact Cisco TAC. | |||
after fifth iteration but LEDs |
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continue until problem is |
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solved. |
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| Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide |
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