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Old 05-25-2007, 11:27 PM   #1
EvuLFleA
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Screen keeps going black -odd problem

Started a few weeks ago my screen would randomly flash off while playing a game. By flashing off I mean it goes black for about 1 second and then comes back. Kind of like when you change the resolution and the screen momentarily refreshes.

At first I figured my card was going bad but today I put it in a different computer and tested it on the very same monitor (Dell 2005FPW) and it worked perfectly. Not a single flash.

If nothing is moving on the screen - mouse, graphics, etc. then it won't generally do it. Well, not near as often. Like while I'm typing this my screen is just going nuts. It's giving me a massive headache.

Now, since the card (9800 pro) seemed to work fine I'm guessing that's not it? What could it be? Perhaps the voltage going to this card is out of whack? Bad mobo (asus p4p800)?

Anyone want to point me in the right direction?
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Old 05-25-2007, 11:29 PM   #2
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Try a different monitor on that card?
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Old 05-26-2007, 09:34 AM   #3
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Well, I've tried the card in my other computer on the same monitor and it worked fine.

I'm starting to lean towards bad mobo or PSU.
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Old 05-26-2007, 09:37 AM   #4
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Well that's what I mean though, if you have OTHER monitors do it with that setup, it's obviously a problem with the computer. If it doesn't, it could still be a problem with the monitor, or it's a problem with the monitor/computer combo.

Additional Comment:

Do you have another video card to put into that computer? If another video card does it, it's probably the motherboard.

Also, shot in the dark, but the cable maybe?

Last edited by DSwarP; 05-26-2007 at 09:37 AM. Reason: Automerged Doublepost
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Old 06-07-2007, 12:19 PM   #5
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I plan on borrowing a friends card to swap onto this mobo and see if the same thing happens. I'm betting it does.

I'll post up results later this weekend.

Thanks.

Additional Comment:

Replaced the mobo and it still does it.

Tried vid card on diff computer and works perfect

Tried monitor on 3 diff puters and it works fine.

I'm almost positive it's a driver/software issue at this point. I'm going to format my windows drive and reinstall. Not sure what else it could be. Haven't tried PSU yet...
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Old 06-07-2007, 01:28 PM   #6
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Very strange indeed. I wish you luck.
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Old 06-08-2007, 07:59 AM   #7
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More updates. Not that anybody cares but incase someone searches for this problem in the future :P

Anyway, reinstalled windows, nothin..Same flickering happening. Son-of-a...

I decide to unplug my 2 dvd drives and use that cable to power my vid card. Voila - it's working. Tried out a few more things and it looks like my PSU can't keep up anymore. It's a big 500+ watt TTGi PSU but it's 3 years old. 24/7 computer @ 3 years is almost 30,000 hours. I guess that's about what most are rated.

I've got 2 hdd's, 3 case fans, 1 cpu fan, 1 vid card, 1 sound card, a dvd-rom, and a dvd-rw. You'd think that PSU would be plenty and it has been. I guess it's getting old and not putting out what it used to though.
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