GX270 shutting off
Computer Suddenly Turning Off

This series has had a major known problem with bad capacitors supplied from the far east on Killer Bee and Jazz motherboards, causing power downs or lost video. Look at the top of the capacitors, those tall can-looking components on the mother board. They should be flat, scored with a K, a T, or an X, and should NOT be leaking brown goo, bulging, or domed at the top. I've recently replaced over 200 motherboards for this problem - 270s made in the early to mid 2000s.

-reply by Cliff

PC SHUTS DOWN
Computer Suddenly Turning Off

Ive had my pc for almost 4 years now and at the start was working brilliant.My pc is from aldi superstore.It has been switching off on it's own for some time now.Before it was doing it regular so I contacted medion who sent an ( expert ) who replaced the power supply a new graphics card and new motherboard.It took him a while to get the pc to boot but eventually everything was as normal and no shutting down.Now I have tried to burn discs and it gets to about 30% then the pc shuts down.Sometimes playing games it shuts off and looking at video on intenet.This is guiding me to either overheating which I do not know what to do or the graphics card or finally something wrong with the processor.Other ideas I have had are too many plugs in one circuit breaker,memory cards not fast enough only have 512mb ram.Please can someone help

-reply by john mccomiskie

Too much dust in CPU
Computer Suddenly Turning Off

It IS overheating, but not because the fan doesn't work. I think it has too much dust near the CPU and doesnt cool down enough. Try opening it, and with an air blower, blow the dust away, and turn it on again.
BTW, this happend to me, and the dust was the problem

-reply by Alfredo

laptop TURNING OFF/ RAM/POWER ISSUES
Computer Suddenly Turning Off

If a "Kr" sound is what you heard then your RAM is most probably what caused the problem. Try taking your RAM, cleaning the contacts with a clean fibreless cloth. Try blowing dust out of the RAM sockets as well. I had the same problem. Doing this worked for me.

and as far as power supply issues are concerned I wud go for the dust theory...ALSO...CHECK FOR A FAULTY POWER CABLE FROM YOUR SUPPLY. AT TIMES THE SLIGHTEST OF NUDGES OR DRAFTS CAN CAUSE A FAULTY WIRE TO CAUSE THE PC TO SHUT DOWN. I HAD THE SAME PROBLEM. THOUGH MOVING THT EXACT CABLE AGAIN SOLVED THE PROBLEM EACH TIME.

I would guess that it is a power suply issue, also check if it feels real hot, that could be a sign of over heating but otherwise maybe a new one would help lots???? possibly.... other than that you can alwaysd have your computer looked at by a pro, I had mine fixed when the fan inside the power supply fan stopped spinning causing it to shut down for a few hours until it cooled off inside......

I remember having a problem with my new computer before I even got to take it home from my local computer store. Apparently, the newly installed fan at the front of my computer case jammed the power button (i.e. kept the power button pressed continually) causing the motherboard to shut down every time the computer was started. It took a long while after numerous disassembling of the computer that we realised that the fan had jammed the power button, plus we originally thought the problem was with the motherboard since the diagnostic lights were showing red.