I recently built a new pc which was running fine for a couple of weeks without any problem. I then didn't use the computer for 2 weeks.
When I next came back to use it, I pressed the on button, it started for a second and then stopped. It then repeated this process every 4 or 5 seconds without me touching the on button again.
I opened the case up. The green mobo LED is on. On trying to start, all the fans spin for a second and then stop.
I have tried removing/swapping various components with another PC I own. From this I have determined that it is not the graphics card, memory, hard drive, optical drive or PSU. I also have deduced that it’s nothing to do with the case on button or reset switch.
I have also checked all connections and even re-seated the heatsink to no avail.
Before I go out and change the mobo or CPU, does anyone have any further ideas?
My spec is:
Intel Core 2 Duo E6550
Asus S775 P35 motherboard
7900GTX Graphics Card
Akasa 500W PSU