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BIOS beep codesAST BIOS beep codes1 short - CPU register test failure (The CPU has failed)2 short - Keyboard controller buffer failure (The keyboard controller has failed) 3 short - Keyboard controller reset failure (The keyboard controller has failed or the motherboard circuitry is faulty) 4 short - Keyboard communication failure (Either the keyboard controller IC or the associated circuitry has failed. replace the keyboard first, then is still faulty, replace the keyboard controller IC) 5 short - Keyboard input failure (The keyboard controller IC has failed. Replace the IC) 6 short - System board chipset failure (The chipset on the motherboard has failed. Replace the motherboard) 9 short - BIOS ROM checksum error (The BIOS ROM has failed. If possible, replace the BIOS on the motherboard) 10 short - System timer test failure (The system clock IC has failed) 11 short - ASIC failure (Motherboard circuitry has failed. Replace the motherboard) 12 short - CMOS RAM shutdown register failure (The real time clock/CMOS IC failed. Replace the CMOS or motherboard) 1 long - DMA controller 0 failure (The DMA controller IC for channel 0 has failed. If possible, replace the IC) 1 long, 1 short - DMA controller 1 failure (The DMA controller IC for channel 1 has failed. If possible, replace the IC) 1 long, 2 short - Video vertical retrace failure (The video adapter has probably failed. Replace the video adapter) 1 long, 3 short - Video memory test failure (The video adapter's memory has failed. Replace the video adapter) 1 long, 4 short - Video adapter failure (The video adapter has failed. Replace the video adapter) 1 long, 5 short - 64KB memory failure (A failure has occurred in the base 64KB of memory. If possible, replace the RAM IC) 1 long, 6 short - Unable to load interrupt vectors (The BIOS was unable to load the interrupt vectors into memory) 1 long, 7 short - Unable to initialize video (This a video problem. Replace the video adapter first. If problem is still present, replace the motherboard) 1 long, 8 short - Video memory failure (The is a failure in the video memory. Replace the video adapter first. If problem is still present, replace the motherboard) <--- Index --->
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