|Recently my computer won't start up or post. I turn it on, and before it can get to the boot screen or even beep, it powers down, waits a few seconds, then tries to re-start itself automatically.|
Eight months ago I installed a new HDD. Then about six months ago I had to replace the PSU and the MotherBoard, and it ran great up until recently. One night last week I powered it up and it actually started, so I installed the SpeedFan app and noticed that when I booted it up, the CPU instantly ran hot. So I set the Speedfan setting to constantly run my fan between 65 - 100%. It ran great for 8 hours, until I powered it down to see if it would restart... it hasn't booted up since. The SpeedFan app did show all the voltages remained in range, and the temps all stayed in range also, during the 8 hour stint.
Tried resetting the CMOS (changed pin, held power for 30secs replaced battery). I'd also taken off the heatsink and applied ArticSilver 5 after seeing the CPU run hot during that last boot up (if 45C is considered hot, SpeedFan put the numbers in red and alerted me.) I did some research for this most recent problem, and believed it could be the RAM... so I bought 2 new sticks and put them in today, and the infinite restart is still there. There aren't many parts that haven't been replaced now, and I'm at a loss. Please, any advice would be greatly appreciated.
HP Pavilion a566n. 3GB P4 w/ HT, 2GB DDR SDRAM, integrated Intel Extreme 2 graphics, Windows XP Home... not sure if any other info would help. Sorry for the novel, thanks again!!