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6900's recommended fan speed

post #1 of 9
Thread Starter 
i just bought a sapphire 6970 2gb and i would like to overclock it some, as the default clocks aren't cutting it for me. so should i just just leave the speed at auto when overclocking or manually change it to say 100 if i decide to get greedy. biggrin.gif
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post #2 of 9
Well i personally with most cards use MSI AB and set the fan to 1% per 1C and if thats not enough make the graph more aggressive.
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post #3 of 9
the stock fan curve is weak and won't scale enough to handle an overclocked card. I would adjust the curve in Afterburner when you overclock it.
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post #4 of 9
Thread Starter 
thanks for the recommendations. one more question, should i use trixx being that it's a sapphire card. i seem to be having problems running the beta of afterburner.
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post #5 of 9
Keep my cards at a minimum of 30% idle and starting at 45C ramp up.
45C- 40%
50C- 48%
70C- 80%
82C- 100%

That way Youtube and other minor tasks are very quite and temps never pass 68C except folding when they hit 70C. Not nearly as loud as you would think it should be.
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post #6 of 9
For me

50*C = 0% (actually about 22% since it doesn't drop any lower)
56*C = 100%
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post #7 of 9
Quote:
Originally Posted by railfan844;14310811 
the stock fan curve is weak and won't scale enough to handle an overclocked card. I would adjust the curve in Afterburner when you overclock it.

This is true for both sides.

My 6870 would ramp so slow it would almost hit 80C in games when overclocked a tiny bit and the same with my 570 and my newer 580s.

You would think they would make a stock auto fan profile that could cool worth a damn.
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post #8 of 9
Thread Starter 
i used trixx and i was able to overclock to 950, 1450 with voltage at 1.200. i put fan speed at 80. i then played crysis 2 with directx 11 and high textures for about 15 minutes and no crashes and/or hitches. this doesn't prove this overclock is stable. i am going to have to test with furmark for a longer period.
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post #9 of 9
Quote:
Originally Posted by mooch49;14311144 
i used trixx and i was able to overclock to 950, 1450 with voltage at 1.200. i put fan speed at 80. i then played crysis 2 with directx 11 and high textures for about 15 minutes and no crashes and/or hitches. this doesn't prove this overclock is stable. i am going to have to test with furmark for a longer period.

Furmark is no longer a great test for the 69XX cards as they will throttle them selfs in that test.
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