After playing games for a few hours my graphics card goes crazy. The colors go bad and then I get snow on the screen. Like interference on a TV screen. I replaced my 8600 gt with and old 6600 and everything is fine. I'm using the latest driver from Nvidia. The card worked fine for 6 months, but not now. Any ideas. The snow appears on everything,eg desktop ect.
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Re: bad colors and snow
Does it have a fan on card if so is it working or is heat sink etc blocked by fluff and dirt if so clean it try again. this sort of thing happens to cpu,s as well I regularly remove and clean fans and heat sinks
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well the fixing is easy just repair the windows. ur files that control the display are been crupted repair the windows and if possible then reinstall windows. i played halo 1 and 2 and no such problem occured for me. i even have the record to end halo 1 in 5 hours.
try re-installing your windows to remove some malicious software if does . or try restore your windows to a early state it working find try using your recovery disc or recovery diskette to recover your lost system setting to back into early state you use find no problem. Hope it help you out ^_^
Sorry for the bad news, but you've seem to have witnessed a graphic card meltdown...
During games, cards get quite melting hot! If there's a little problem or inefficiency in the card cooling system (Active Fan or Passive Airflow) Your card will simply melt a few little contacts, enough to produce what you saw or even worse!. (Basically just in the graphic 3D render portion of the board, thats why you could still see windows some times but Aero (3D) started glitching later).
If you wish, you can verify this at your own risk opening up your case and placing your finger on the free corner of your card and bending/arching it a little to the sides when windows or your games are running... It may restore contact at the melted away points for a few seconds for you to see, but won't repair it, you'll maybe see how images get better or worse with the bending, proving the meltdown situation.
Return your card if you can or buy a new one, before the crashes mess up your windows. Buy a new one from a good manufacturer and clad with an elaborated cooling system, if you plan to run 3D heavy games, stay away from the weird branded, cheapest or heavily discounted cards are usually the ones most prone to fail this way. If you go ATI, buy ATI made cards. If you go NVidia, buy BFG for example.
the problem is either that the game doesn't support lower graphics, the game starts in a high res so u can't see to lower the graphics, there are 2 solutions here but only if the game supports lower graphics, either try to search for the game from the programs tab in the start menu and then you may find options icon or sth like that, or un-install the game and then re-install it, as for the heating of the card you may notice that it has some sort of power slot on it, this is used to plug in a cable from the power supply either directly or using a cable converter that came with it
in safe mode your "graphics accelerator" doesnt kick in, it runs a slow standard VGA commands. If your card was damaged by usualy overheating or just itself (bad luck, happened to me on 6600gt) it will die either quick or slowly. Slowly means, first "Direct 3D" will show rubbish on screen, the "OpenGL" and later even in windows it displays lines and freezes. After that, you cant even go to BIOS cause if freezes 5 secs after boot. Mine died that way.
TRY another card, cheapest u can get or borrow but the same port AGP or PCX, whiever u have. If all is ok, the card is gone. (sounds like it 90%)