Posted 07 February 2008 - 07:30 AM
Hi, my PC is a Pentium 4 2.0A GHz with 256MB ram, MSI 845PE Max mobo, etc. Lately, the PC keeps restarting for no reason. It keeps restarting at the POST screen, or even when I'm in making changes in the BIOS settings. If I am really lucky, I can get to the Windows XP desktop for about 15 minutes, only for it to restart. I have ruled out the HDD, as a faulty HDD won't be a culprit for restarts at the POST screen. I have changed the power supply and the power outlet to which the PC is plugged into.
I don't see any "swollen" or "bloated" capacitors on the motherboard, and I have replaced the RAM with a new stick. Sometimes when the PC restarts, the monitor doesn't detect anything, the USB mouse light will be 'ON' and the NUM lock will be lighted and jammed for a long time.
I have also cleared my CMOS settings and have replaced the CMOS battery with a new one. The PC is quite old (5 years and counting). I suspect that either the motherboard or the CPU is faulty, but i was told that should anyone of these 2 components is faulty, the PC won't even boot up!
Any suggestions and advice will be much appreciated. Thank you!