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New GPU..performance problems..help!

FlipprDolphinFlipprDolphin Registered User regular
So I installed new power supply, new rear case fan, new video card (went from a 4xxx to a 6850 Radeon HD) and things are acting slower. Seems like my computer is kinda chugging along at times instead of being smooth in games. DCUO was fine before, but with this videocard it kinda has texture popping and hitches. I have v-sync on and it is steady 30 sometimes, then dips to 20, then back to 30 and continuously doing that. I think TF2 got a little more sluggish, but I couldn’t tell that well.


Things I did in order

Uninstall videocard drivers/catalyst through add/remove programs
Took out old power supply and accidently took out the SATA cables, put sata cables back on HD’s (not sure if I connected them in the same ports as before, I have 2 HD’s)
Put in new power supply
Put in new video card
Connected everything
Booted up fine
Went to store, bought new rear case fan since my old one died
Hooked up case fan, closed case
Installed new drivers for video card from ATI website 11.1a (i think)


That’s it!

FlipprDolphin on

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    PirusuPirusu Pierce Registered User regular
    edited January 2011
    If you can find them, try the 10.2 drivers. The 11.1 drivers are pretty new, and drivers can be a bit finnicky.

    Pirusu on
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    Macro9Macro9 Registered User regular
    edited January 2011
    I would uninstall the drivers, boot into safe mode, run driver sweeper and driver cleaner, then boot into the normal desktop, and finally install an older driver.

    http://www.guru3d.com/index.php?page=driversweeper

    http://www.afterdawn.com/software/security/system_cleanup/driver_cleaner_pro.cfm

    Macro9 on
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    FlipprDolphinFlipprDolphin Registered User regular
    edited January 2011
    okie. I will give that a whirl!

    FlipprDolphin on
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    Monster Robert!Monster Robert! Registered User regular
    edited January 2011
    It is pretty bad practice to install newer generation GPU drivers over and older gen version, you're asking for trouble.

    As already stated, uninstall drivers, boot to safe mode and sweep anything related to ATI off your system and reinstall after rebooting. Should work fine after that.

    Monster Robert! on
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    StormwatcherStormwatcher Blegh BlughRegistered User regular
    edited February 2011
    I hate to ask this
    but did you plug the extra PCI-E power wires right?

    Stormwatcher on
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    ApogeeApogee Lancks In Every Game Ever Registered User regular
    edited February 2011
    I hate to ask this
    but did you plug the extra PCI-E power wires right?


    This woudl be my prime suspect. That or your new PSU isn't powerful enough, but if you bought it with the card I'm guessing you did your research. If you can eliminate power, heat, and drivers, it's probably a bad card.

    Apogee on
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