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This document gives troubleshooting tips for when you hear
beep codes and your desktop board does not boot up
successfully.
You are getting 1, 2, or 3
beeps that indicate a memory failure.
1 beep - Refresh Error (with nothing
on the screen and it is not a video problem)
2
beeps - Parity Error
3 beeps
- Base 64 K memory failure
- Reseat the memory.
- Make sure that the contacts on the memory and the socket
are clean.
- Try removing one bank of memory modules at a time. Note:
Some systems might need to have a memory module in Bank 0.
- Try using RAM chips from the same manufacturer with the
same part number and speed.
- Check for a faulty memory module by trying the memory in
a known good system.
- Trying known good memory in the system.
- Check the power supply and check for power fluctuations.
- Swap the motherboard.
You are getting 4
beeps indicating a timer not operational:
- Check for foreign objects such as screws that may ground
the motherboard and make sure that screws that hold the
motherboard are not too tight.
- Swap the motherboard.
You are getting 5
beeps indicating a processor error:
- Check for foreign objects such as screws that may ground
the motherboard and make sure the screws that hold the
motherboard are not too tight.
- Make sure the processor is seated properly.
- Swap the processor.
- Remove the motherboard and reinstall it.
- If the problem still persists, swap the motherboard.
You are getting 6 beeps indicating
8042 - gate A20 failure:
- Check for foreign objects such as screws that may ground
the motherboard and make sure the screws that hold the
motherboard are not too tight.
- Try reseating the keyboard controller chip (if
possible).
- Swap the keyboard.
- Swap the processor.
You are getting 7
beeps indicating processor exception interrupt error
- Make sure the processor is seated properly.
- Swap the processor.
- Swap the motherboard.
You are getting 8
beeps indicating display memory read/write failure
- Make sure that you have a video card on your system.
- If possible, swap the memory on the video card.
- Swap the video card.
- Swap the motherboard.
You are getting 9
beeps indicating ROM checksum error
- If possible, try reseating the System ROM BIOS chip.
- If possible, try reflashing the system ROM BIOS.
- Swap the motherboard.
You are getting 10
beeps indicating CMOS shutdown register read/write
error
You are getting 11
beeps indicating cache memory bad
- Make sure the system is configured properly (CMOS Setup
Program and jumpers on the motherboard) for the RAM cache.
- If possible, replace the RAM cache.
- Swap the processor
- Swap the motherboard
This applies to:
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Worldwide
