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Author Topic: Radeon 6950 and underclocking ?  (Read 1156 times)
Beta-coiner1
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July 22, 2011, 08:23:01 PM
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     I was wondering if any of you guys have successfully underclocked the memory of the 6950.Does the bios lock out underclocking of the memory as I seem to be only able to overclock ?

The temps are great but the sound of the fans are a bit too audible for my liking and know I can push the hardware a little more since it is next to the air conditioner lol.

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Zodiac4
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July 22, 2011, 09:07:43 PM
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Why do you want to underclock it?
Beta-coiner1
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July 22, 2011, 09:12:08 PM
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^^Not sure how long you have been mining,but after reading the forum and doing my own testing you will find that memory speeds are not much of a factor when it comes to mining BTC or NC.The many benefits are lower electricity consumption by far,~10 C temp. drop and it allows more overclock on the core for better rates.

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kookiekraks
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July 22, 2011, 09:24:09 PM
 #4

If you're on windows, use MSI afterburner. you'll need to enable unofficial overclocking. Then use the open close trick to drop the mem speed to around 400 on a 6950.


Lower mem speed = less heat = faster hashrate (like up to 5mhs)

If you're on linux, you'll need to use something else.
Beta-coiner1
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July 22, 2011, 10:06:31 PM
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^^Thanks for that,I find it very strange that the MSI product work but even the official CCC doesn't...weird.It now works though and thanks,I will definitely be keeping this proggie around.

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