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video card problem


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#1 Big Red65

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Posted 28 April 2009 - 09:08 PM

Ok, well before i ask my question, a brief desc. of my situation.
I have a crappy compaq thats roughly 6 years old. About 780 RAM and a decent processor for the age of the computer. The one piece of equipment that totally sucks on my computer is my video card.

I'm not sure what the stock card is. I got 2 new cards from some old computers my step mom gave me but had some decent parts in them. One card is a Geforce 256, the other a Geforce TI 4600.

I currently have the 256 in and theres some problems. the screen brightness is very dull, much duller than my old graphics card. and when i first turn on my computer, theres a decently loud noise coming from it.

Ive put in the 4600 and it started out odd. as i turn on the computer [Note theres no loud noise with THIS card in...] and am loading it up, theres weird parts on the screen that are discolored and pixelated. like on the 'loading windows xp' screen, theres several discolored and pixelated streaks on the screen.

so anyways, the first time it WORKED. my computer was on and i was on the explorer and everything was loaded up. the screen was still a little pixelated in some areas but it didnt seem to affect IE when i launched that up. however i noticed my resolution was off. everything on the screen was huge. for instance my search bar on IE took up about 1/4 of the whole screen.. so i go to change my resolution. im not sure what it was on because i didnt care i just figured i needed to make it smaller so i slid the resolution thing to the right a bit.

i dont know what resolution i slid it too... i figured if anything itd just be trial and error to see what suits me. but little did i know, after i slid the resolution thing, my screen went black. it stayed black for a while but flashed my screen up once, showing it in better resolution, everything fitting on the screen better. but then it went black again... and [pardon the humor] it never went back. now everytime i boot up windows, its just black. i get to the loading screen just as i mentioned before where its off pixelated and colored, but when i load everything the screen just goes black, as if my card has stopped sending signal to my monitor.

keep in mind that what i just said is probably true. when i turn it on at first, the on light on my monitor is solid green. but when i get past the off pixelated loading screen, the monitor goes black and the green on light is now flashing (this happens when the computer is OFF but the monitor is on...)

any help would be appreciated. sorry if im unreasonably descriptive and drag things out.

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#2 Sunharrow

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Posted 28 April 2009 - 10:13 PM

The GeForce 256 came out in 1999. That noise is most likely the video card's fan dying and thus overheating. The GeForce Ti 4600 was one nice card in its day but from what you are descibing it is called artifacting. It is a major sign either the card is about to die or is basically dead.

I would go to HP's website (they bought out Compaq but still make the line), find you PC model and research what type of video cards are recommended for your system. Then let us know and we may be able to help you find a decent one.

Edited by Sunharrow, 28 April 2009 - 10:15 PM.





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