I have tried to upgrade my AND Athlon X2 processor to a faster one. also, wanted install new memory (2 sticks of 2GB Corsair XMS2). When I restared got 1 beep then black screen. HD light flashing but would not continue booting.

Tried new processor with old memory and same result. Tried old processor with new memory and same result.

Re-installed both old processsor and old 2GB of memory with same result.

Left computer unplugged from power source for about 1-2 hours and it rebooted normally.

What steps am I missing that will not let me install either more memory or a new processor? Running XP Pro on a ASROCK AliveNF6G-VST MB.

Thanks in advance.