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| POST Error Messages |
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| POST Error Messages |
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| Screen Message | Probable Cause | Recommended Action |
Microcode Error | BIOS could not find or |
| load the CPU microcode |
| update to the CPU. |
Ensure the system board BIOS supports the processor.
Change system board jumper on JP2 to pins
NVRAM Checksum | Error detected while | Restart the computer, use the F10 Key to |
Bad, NVRAM Cleared | validating NVRAM data. | access Computer Setup. Select Load |
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| Default Settings > Save and Exit. |
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NVRAM Ignored | NVRAM data used to | Restart the computer, use the F10 Key to |
| store plug and play data | access Computer Setup. Select Load |
| was not used for system | Default Settings > Save and Exit. |
| configuration in POST. | Change system board jumper on JP2 to |
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| pins |
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| BIOS. Reset the jumper to pins |
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| Replace the system board. |
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NVRAM Bad | NVRAM data used to | Restart the computer, use the F10 Key to |
| store plug and play data | access Computer Setup. Select Load |
| was not used for system | Default Settings > Save and Exit. |
| configuration in POST. | Change system board jumper on JP2 to |
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| pins |
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| BIOS. Reset the jumper to pins |
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| Replace the system board. |
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Timer Error | Error found while | Replace the system board. |
| programming the count |
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| register of channel 2 of |
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| the 8254 timer. |
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Interrupt
Error
Interrupt
Error
BIOS POST could not | Replace the system board. |
initialize the Master/ |
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Slave Interrupt controller. |
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CMOS Date/Time Not | CMOS Date and/or Time | Set the date and time under Control |
Set | is invalid. | Panel or in F10 Setup depending on |
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| the operating system. |
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| If problem persists, replace the RTC |
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| battery. |
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CMOS Battery Low | CMOS battery weak. | Replace the RTC battery. |
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CMOS Settings Wrong | Invalid CMOS settings. | Restart the computer, use the F10 Key to |
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| access Computer Setup. Select Load |
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| Default Settings > Save and Exit. |
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| Service Reference Guide |