Dear Experts, my PC just started to shut down itself (like a power lost) about 2 minutes after it was booted up and then it reboots itself again. It kept doing this repeatedly. It is an IBM NetVista with Intel Pentium III running Windows 2000.
I do't think it is software problem because I have run virus scan and no virus is reported. No files were corrupted as far as I can tell. Everything just seemed normal after the PC booted up. I am not sure it is hardware related. But I opened up the box and turned on the PC, everything seems fine inside. But again, after about 2 minutes it shuts down itself.
Can someone please direct me where to look for the problem? Any help will be appreciated. Thanks.