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Help ocing my dads gpu

post #1 of 11
Thread Starter 
I told him about overclocking your gpu. He thought you could only OC your cpu.

So uhh, if my dad overclocks his 6800 GS, is this ok?

Core-425.10
Memory-590

It gets one artifact in the same place about every 5 seconds.

I know basically nothing about overclocking graphics.

Someone wanna help me out here?
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post #2 of 11
Same place every 5 seconds doesnt sound good to me...
    
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post #3 of 11
Thread Starter 
So, how much should he lower it?
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post #4 of 11
trial and error
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post #5 of 11
Thread Starter 
Thats what he been doing for a while.
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post #6 of 11
lower it until the artifacts go away. That's it.
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post #7 of 11
You should really overclock a gpu in the same fashion as a cpu. Go in 4-5mhz increments. But with a gpu, you overclock the core and memory seperatley to help isolate the cause of artifacts. Obviously you know what they are so ill skip explaining what they are/look like. But i will tell you that artifacts that are jagged lines, that sometimes shoot acroos the screen or something in games, video ect. is caused from the core clocked too high, or its overheating. Artifacts that look like blobs of misplaced color, is caused by the ram clocked too high or overheating, but most likely clocked too high.

As i said before, overclock the core and the memory independantly, and go a few mhz at a time, then stress the card by playing a good game, running a benchmark or something to stress it. Avoid having any artifacts for they are unhealthy for the card. Aftermarket cooling,such as the vf-900, are a great addition to really help you overclock the card.

Your father has an nvidia, so if your using coolbits to overclock, you can let the software detect an optimal overclock, then if its artifact free, you can manually overclock higher from there.

Good luck!! Post some before/after benchies of the card overclocked.
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post #8 of 11
Thread Starter 
Quote:
Originally Posted by pbasil1
You should really overclock a gpu in the same fashion as a cpu. Go in 4-5mhz increments. But with a gpu, you overclock the core and memory seperatley to help isolate the cause of artifacts. Obviously you know what they are so ill skip explaining what they are/look like. But i will tell you that artifacts that are jagged lines, that sometimes shoot acroos the screen or something in games, video ect. is caused from the core clocked too high, or its overheating. Artifacts that look like blobs of misplaced color, is caused by the ram clocked too high or overheating, but most likely clocked too high.

As i said before, overclock the core and the memory independantly, and go a few mhz at a time, then stress the card by playing a good game, running a benchmark or something to stress it. Avoid having any artifacts for they are unhealthy for the card. Aftermarket cooling,such as the vf-900, are a great addition to really help you overclock the card.

You father has an nvidia, so if your using coolbits to overclock, you can let the software detect an optimal overclock, then if its artifact free, you can manually overclock higher from there.

Good luck!! Post some before/after benchies of the card overclocked.


THANK YOU!!!
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post #9 of 11
use ATITool and let it auto detect...if it doesn't work the first time (you can see artifacts and it isn't erroring) then you should switch the artifacts detection to "old style" or whatever....

Good luck.
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post #10 of 11
If your already artifacting and it's not overclocked you might want to replace the thermal paste on it or Aftermarket cooling like pbasil1 said, overclocking will probley make it worse. Or unless you want a newer card , LOL
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