Hey all.

I'm stumped by this one, and I can't seem to think of anything else to check. I guess it's time to buy a new power supply, although this one is new...

Here's the problem:

I'll boot, or be in the bios, or be playing a game, or sitting at command line -- and the computer will just shut off. No warnings, no clean cut off -- nothing, just monitor goes blank, and the system loses power.
It can happen in a time range anywhere between 30 seconds to hours on end.

I've checked the temperatures, my CPU isn't overheating. All the fans are spinning smoothly, as well.
It's a brand-new ASUS A7N8X-X motherboard in a brand new, albeit cheap case with an OKIA 420 watt power supply. ATI Radeon 9000Pro (the fan is working fine on it, too.)

What should I be looking for, or shall I just assume it's a bad power supply?

--Shade

You are on the right track. If everything shuts down, the P/S may be going out. I would check all the connections, especially the power cord and make sure it is plugged into the wall good too.

Hope you get it going.

Later

Maybe replace the power cord

That would be a good try. It sounds suspicous.


If you get it, let us know what it is.

I've tried different power cords. I just bought a new PSU, it's working great now.

The silliest things...

--Shade

I ran into one once where the plug was coming out of the wall. It was just barely touching. Step in the wrong place and it would loose connection and off goes the computer.

It is sometimes the silly things.

Later

Well, it wasn't quite as sudden as that...

The screen would go blank, fans still spinning for a second, lights still on.

Then after about 2-3 seconds of a blank screen, power dead.
Almost like a halt instruction from the cpu...
It was an odd problem, but a new PSU seems to have solved it.

--Shade