You are getting 1, 2, or 3 beeps th

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.