Hey fellas. ltns. I have a big problemo.

My home pc recently started spontaniously shutting off. Not a full shutdown, it just shuts off! One second you're surfing the web, the next second it's like the electricity went out! When it shuts off, the power LED on the case blinks.



I figure it's the power supply or the motherboard, but I wanted to get a second opinion before I cough up the $.

Ideas? Thanks!

Windows XP Pro
Anatec full tower
Asus A7V mb
Athlon Thunderbird 1200mhz
386mb pc133
soundblaster live! value