Table 10-2 Diagnostic front panel LEDs and audible codes (continued)
Activity | Beeps | Possible Cause | Recommended Action | |
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Red Power LED flashes seven | 7 | System board failure (ROM | Replace the system board. | |
times, once every second, |
| detected failure prior to |
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followed by a two second pause. |
| video). |
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Beeps stop after fifth iteration |
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but LEDs continue until problem |
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is solved. |
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Red Power LED flashes eight | 8 | Invalid ROM based on bad | 1. | Reflash the system ROM with the latest BIOS |
times, once every second, |
| checksum. |
| image. See the “Boot Block Emergency |
followed by a two second pause. |
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| Recovery Mode” section of the Desktop |
Beeps stop after fifth iteration |
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| Management Guide for more information. |
but LEDs continue until problem |
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| 2. | Replace the system board. |
is solved. |
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Red Power LED flashes nine | 9 | System powers on but is | 1. | Unplug the AC power cord from the computer, |
times, once every second, |
| unable to boot. |
| wait 30 seconds, then plug the power cord |
followed by a two second pause. |
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| back in to the computer. |
Beeps stop after fifth iteration |
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| 2. | Replace the system board. |
but LEDs continue until problem |
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is solved. |
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| 3. | Replace the processor. |
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Red Power LED flashes eleven | 11 | The current processor does | 1. | Install a TXT capable processor. |
times, once every second, |
| not support a feature | 2. | Disable TXT in the Computer Setup (F10) |
followed by a two second pause. |
| previously enabled on this | ||
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| utility. | ||
Beeps stop after fifth iteration |
| system. |
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but LEDs continue until problem |
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| 3. | Reinstall the original processor. |
is solved. |
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Red Power LED flashes eleven | 12 | MXM thermal shutdown. | 1. | Clean the MXM graphics card heat sink. |
times, once every second, |
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| 2. | Replace the MXM graphics card heat sink. |
followed by a two second pause. |
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Beeps stop after fifth iteration |
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| 3. | Replace the MXM graphic card. |
but LEDs continue until problem |
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is solved. |
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System does not power on and | None | System unable to power on. | Press and hold the power button for less than 4 | |
LEDs are not flashing. |
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| seconds. If the hard drive LED turns green, the | |
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| power button is working correctly. Try the following: | |
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| ▲ | Replace the system board. |
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| OR |
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| Press and hold the power button for less than 4 | |
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| seconds. If the hard drive LED does not turn on green | |
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| then: |
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| 1. | Check that the unit is plugged into a working |
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| AC outlet. |
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| 2. | Open rear cover and check that the power |
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| button cable is properly connected to the |
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| system board. |
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| 3. | Check to see if the 5V_aux light on the system |
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| board is turned on. If it is turned on, then |
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| replace the power button board and cable. If |
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| the problem persists, replace the system |
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| board. |
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| 4. | Replace the AC adapter. |
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