Beep codes in general mean a part of the POST has failed. This most often points to bad RAM, or a bad mainboard component. A quick test, is to pull all your ram, and try it one stick at a time in the machine, attempting to boot. If it POSTs, then likely you have a bad DIMM or slot. If oyu only have a single stick, try moving it to different slots, and if possible, beg/borrow a stick of similar memory to see if you can get it to post at all.
Can you let us know what model of motherboard it is? Different manufacturers sometimes use different beep codes.
Edited by Inevitable, 18 August 2008 - 08:44 PM.