Monitor switches off

by xerpor Jun 6, 2007 12:44AM PDT

W2K, Gigabyte GA-7N400 Pro2 mobo, AMD 2600 CPU, 1 GB RAM, 450 W Power Supply, 128 MB AGP Nvidia GeForce FX 5200 graphic card.

Power supply went bad so I changed it out, afterward the Pc ran great for several hours then all of a sudden the screen went black and the monitor light turned orange. The PC continued to run. I shut everything down waited a bit and tried again. Booted up just fine and ran great for several hours and the same thing happen.

After about the 3rd time I got the posting screen but then the screen went black and the monitor light turned orange.

I have now tried two different monitors and the same thing happens so it's not the monitor. I'm hoping it's the video card.

What do you'll think?

Richard

Discussion is locked

- Collapse -

Two possibilities

by jackson dougless Jun 6, 2007 1:47AM PDT

The way I see it, from what you've said, there's two possibilities.

The most probable is that it is some kind of strange short in the video card. Probably caused by thermal expansion, which would explain the delay.

Another possibility would be that you're plugging the monitors into the same outlet, and there's something wrong with the wiring to that outlet.

If you've got a spare video card, or could get one, I'd test that first. Trying to find a fault in electrical wiring wouldn't be easy.

- Collapse -

Thanks

by xerpor Jun 6, 2007 3:38AM PDT

I was plugging all three monitors into the same plug, the Power Back UPS, and the same thing occurred to me so I used the wall plug, same thing. Took the video card out, looked it over carefully, looks brand new everything looks perfect. I reseated and tried again, same thing.

I have checked every plug and capacitor on the mobo. All appears to be OK.

- Collapse -

Spare card

by xerpor Jun 6, 2007 3:43AM PDT

No I don't have a spare card, at least not an AGP, all the other PCs have PCI cards. That's one reason I'm trying to be as sure as I can that it's the video card before I go buy one.

Richard

- Collapse -

New Graphic card

by xerpor Jun 6, 2007 1:20PM PDT

Installed a new graphic card and booted up, got post screen and when it finished I got a black screen. I pressed around on stuff in the case, processor, plugs on mobo, the mobo itself, memory sticks ..... Tried booting up again and it booted up to Windows.

Installed drivers and all seemed ok but not too long, maybe an hour, and the screen went black again. There are no hot spots in the case, nothing is even very warm, only barely warm, all fans are running.

If the mobo was bad it wouldn't post would it? It never fails to post. The memory check during post is OK.

- Collapse -

The monitor was the problem!! I think

by xerpor Jun 6, 2007 4:47PM PDT

I know I said this in the last post:

Installed drivers and all seemed ok but not too long, maybe an hour, and the screen went black again.

However, this happened after I had switched back to my original monitor, a 21" View Sonic. Later I removed it and again hooked up the small one and it's been running for several hours without any problem. I'm almost certain the problem was the monitor. Should I again experince failure I'll post, otherwise the problem is solved.

- Collapse -

Not the monitor

by xerpor Jun 8, 2007 9:33PM PDT

Back to square one.

!!

Monitor switches off

CNET Forums

Other Forums

Forum Info