So I recently got an Athlon XP+ 2800 and put it in my asus a7n8x deluxe motherboard. I power on and fans start to spin, but the monitor led stays yellow, and then seconds later it turns off. I knew the processor wasn’t dead because a. I just bought it and b. I put it in an old syntax board and could boot up fine (only at 1.6 ghz because the motherboard doesn’t support 166fsb). I tried clearing the CMOS on the a7n8x deluxe. Same problem. I set the fsb to 100 and put in an old Duron 600mhz processor I have and it boot up fine. So motherboard should not be a problem. CPU should not be the problem. The RAM is 1.5 GB of PC2700 so that should not be a problem. WHAT’S THE PROBLEM?!
If I have no CPU installed the computer will run the fans, power up, leds, etc. and stay on. No picture on monitor, but it doesn’t shut down either. A bad CPU I have would do the same thing. A good CPU boots… but this CPU starts and shuts down. Can’t be overheating either since I tried it in the other and I doubt it would overheat at the same place everytime before getting any kind of response. Heatsink and fan are definitely in place. I’m trying to give as much detail as I can. I’ve tried resetting the CMOS twice now and it hasn’t worked.
PLEASE help! I can’t afford to buy another CPU or mobo right now. I’M DESPERATE FOR HELP! 