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Author Topic: Memory Speed & Underclocking  (Read 510 times)
Intention
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July 16, 2011, 12:52:52 PM
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Currently I have 2x Sapphire Radeon HD6950's (2GB versions).  I used to be able to underclock the memory to around 300Mhz for mining purposes but now since I had a card die due to unforeseen circumstances I replaced one with a Sapphire Radeon HD6950 DIRT3 edition.  I have no idea if its the new card or if I had updated the drivers to 11.7 (.6b) that my computer now locks up every time I attempt to under-clock the memory to the 300-400Mhz range.

Any ideas why?

Also on an unrelated note Sapphire has terrible, terrible RMA support. eVGA ftw.

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July 16, 2011, 02:45:40 PM
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Some cards just can't run at such low memory speeds, I had a 4850 that freezes every time if it goes close to 400mhz memory speed
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July 16, 2011, 03:37:22 PM
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Some cards just can't run at such low memory speeds, I had a 4850 that freezes every time if it goes close to 400mhz memory speed
Must be the Dirt3 edition then, I just had the regular kind before - kind of sucks since I'd like it running cooler but the dual fan is a trade off I suppose.  I'll have to fiddle with it until I find a spot that's low and won't lock up, thanks!

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