POST Error Messages
Diagnostic Front Panel LEDs and Audible Codes (Continued)
Activity | Beeps | Possible Cause | Recommended Action | |
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Red Power LED | 7 | System board | Replace the system board. | |
flashes seven times, |
| failure (ROM |
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once every second, |
| detected failure |
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followed by a two |
| prior to video). |
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second pause. |
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Red Power LED | 8 | Invalid ROM | 1. Reflash the ROM using a ROMPaq | |
flashes eight times, |
| based on bad |
| diskette. See the “ROM Flash” |
once every second, |
| checksum. |
| section of the Desktop |
followed by a two |
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| Management Guide on the |
second pause. |
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| Documentation CD. |
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| 2. | Replace the system board. |
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Red Power LED | 9 | System powers on | 1. | Check that the voltage selector, |
flashes nine times, |
| but is unable to |
| located on the rear of the power |
once every second, |
| boot. |
| supply (some models), is set to the |
followed by a two |
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| appropriate voltage. Proper voltage |
second pause. |
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| setting depends on your region. |
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| 2. | Replace the system board. |
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| 3. | Replace the processor. |
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Red Power LED | 10 | Bad option card. | 1. | Check each graphics card by |
flashes ten times, |
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| removing the card (one at a time if |
once every second, |
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| multiple cards), then power on the |
followed by a two |
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| system to see if fault goes away. |
second pause. |
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| 2. | Once a bad card is identified, |
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| remove and replace the bad option |
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| card. |
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| 3. | Replace the system board. |
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Troubleshooting Guide | www.hp.com |