My screen flickers at high resolutions

Hi i recently rebuilt my computer with a new graphics card and psu. Everything was fine until i set the resolution on my pc to 1920 x 1080 (24") and noticed a small flickering even when nothing is running. However when i change to smaller resolutions the problem goes away. Please help i really wanna run it at 1080 but the flickering is starting to annoy me.

Screen Size (cm) 24" (60cmv)
Screen Definition Full High Definition
Screen Aspect Ratio Widescreen 16:9
Screen Resolution 1920 x 1080
Screen Type LCD

Sapphire Radeon HD6870

GX 750W 85% +
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  1. Best answer
    Your problem likely has to do with your video card's power management features. What it's doing is downclocking your GPU's memory when it isn't under load. With the AMD cards under some driver revisions, they clock the memory too low in low power mode, and that causes flickering. To fix this you can try updating to the latest driver revision if you haven't already. If that doesn't work, download Sapphire Trixx or MSI Afterburner, and look for the option to disable ULPS. That will disable the power saving feature that downclocks the graphics memory, and should eliminate the flickering.

    If none of that works, you could have a bad video cable, a bad DVI/HDMI/Display port, or an issue with your monitor. To test for that you can always try plugging the monitor cable into a different port, or try a different cable. If you have another computer, try hooking it up to the display in question, and see if it flickers at 1080p.
  2. Thank you for the reply ill try that asap and get back to you!
  3. Best answer selected by jayden948.
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