i recently received a computer from a client that was having OS issues. The OS wouldnt boot up for him but when I got it back to my shop, it booted up perfectly. so i did what i normally do and run it for a while to see if the problem reappears. when it didn't, i started updating the computer as it was on xp service pack 2 so i upgraded it to service pack 3 and all the high priority updates according to microsoft. next thing i know the os wouldnt boot at all and then the cpu started acting up. basically when you boot the computer there is no video so i shut it down and turn it back on and then the bios says the cpu speed isnt right so i turn down the processor speed and the computer boots fine. suddenly the same message appears and im back at square one. i change the speed back to what it was originally and the same message keeps popping up and the bios boots up to correct the issue. the question i have is whether or not this problem is due to power issues? i have swapped power supplies and the same problem occurs. the motherboard is an asus a7s333 and its an athlon processor. i dont know what else could caus the problem except for perhaps the ram chip. any ideas? should i give up or is there hope for this computer?