Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > Abnormal Graphics consist of bits of squares in max overdrive on 5870

Abnormal Graphics consist of bits of squares in max overdrive on 5870

Forum Graphic & Displays : Graphics Cards - Abnormal Graphics consist of bits of squares in max overdrive on 5870

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Pochama   10-06-2009 at 09:10:49 PM


I have many bits of un-rendered squares all around the screen if you ever use overdrive, which make the graphics abnormal.

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Zirbmonkey   10-06-2009 at 09:32:10 PM
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We call those "artifacts." And that happens when you OC your card too far. Overdrive is pushing the card beyond where it should be.

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Bronze Graphics badge coozie7   10-06-2009 at 09:36:39 PM
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It, or you, is setting the clockspeeds too high.
From what I have seen the HD5870 is a poor overclocker so you need to use the manual sliders to set the clockspeeds and only increase them a little at at a time, testing (use Furmark) after each change.

------------------------------ Peace cannot be kept by force, it can only be achieved by understanding: Eienstien
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Twoboxer   10-06-2009 at 10:37:27 PM
- 0 +

Patient: "Doc, it hurts when I do this."

Doc: "Stop doing that."

ROFL - turn down, turn off Overdrive.

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Pochama   10-06-2009 at 11:21:11 PM
- 0 +

refer to ATI overdrive , not other third party overclockers.

Is auto-tune fine enough? I got 890mhz clock speed (850-900) and 1290mhz memory speed (1200-1300).

Any stable suggestion?

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nukemaster   10-06-2009 at 11:30:47 PM
- 0 +

Start to back them down a bit and test. Auto-Tune can overdo it sometimes.

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