Could be anything from a bad contact with the mobo, to memory on its way out.
Try reseating the RAM in the motherboard, see if that helps
I finally removed the mb from the case disconnected all connections except 12 & 24 pin power, cpu fan and power switch. One memory strip and now whn I apply power, there is a constream of short beeps. Any suggestions??
I'm having the same issue. I start up the PC, all the CPU indicator lights turn on, and then it's just BEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEP *silence**silence**silence* BEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEPBEEP until I shut down my PC. No monitor action, nothing. I've tried resetting the CMOS with a jumper cap, as well as removing the battery, and no luck. I've tested each RAM unit, I've swapped out GPUs, ect. No luck. It may just be worth it to replace my machine.