Table
Activity | Beeps | Possible Cause | Recommended Action |
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Red Power LED flashes four | 4 | Power failure (power | 1. Open the hood and ensure the 4 or |
times, once every second, |
| supply is overloaded). | power supply cable is seated into the |
followed by a two second |
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| connector on the system board. |
pause. Beeps stop after fifth |
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| 2. Check if a device is causing the problem by |
iteration but LEDs continue until |
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| |
problem is solved. |
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| removing ALL attached devices (such as hard, |
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| diskette, or optical drives, and expansion |
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| cards). Power on the system. If the system |
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| enters the POST, then power off and replace |
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| one device at a time and repeat this |
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| procedure until failure occurs. Replace the |
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| device that is causing the failure. Continue |
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| adding devices one at a time to ensure all |
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| devices are functioning properly. |
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| 3. Replace the power supply. |
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| 4. Replace the system board. |
Red Power LED flashes five | 5 |
times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.
CAUTION: To avoid damage to the DIMMs or the system board, you must unplug the workstation power cord before attempting to reseat, install, or remove a DIMM module.
1. Reseat DIMMs.
2. Replace DIMMs one at a time to isolate the faulty module.
3. Replace
4. Replace the system board.
Red Power LED flashes six times, 6 once every second, followed by
a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.
For systems with a graphics card: | ||
| 1. | Reseat the graphics card. |
| 2. | Replace the graphics card. |
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| 3. Replace the system board. |
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| For systems with integrated graphics, replace the |
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| system board. |
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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 |
followed by a two second |
| video). |
pause. Beeps stop after fifth |
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|
iteration but LEDs continue until |
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problem is solved. |
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Red Power LED flashes eight | 8 |
times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.
Invalid ROM based on bad 1. | Reflash the system ROM with the latest BIOS |
checksum. | image. See the “Boot Block Emergency |
| Recovery Mode” section 3.4. |
2. | Replace the system board. |
116 Appendix C POST error messages | ENWW |