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

  • Swap the motherboard
  • 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

Sumber : intel.com