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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 3083

post #30821 of 38704
Not all DCII 7970s are volt locked, its usually newer PCB revisions that are. Also many other vendors lock voltages, its a way to stop people frying/RMA'ing the cards I believe.

But DCII7970 voltages still could be modded by hotwire if done right!

Ive used 2 DCII 7950s one didn't oc very well at all, but I didn't clean drivers so that may have been the problem. I want a second and maybe a 7970/matrix on a block as well

and well this one...

http://www.3dmark.com/fs/762043

http://www.3dmark.com/3dm11/6910745

best oc so far on air is 1260/1780
post #30822 of 38704
Quote:
Originally Posted by d1nky View Post

Not all DCII 7970s are volt locked, its usually newer PCB revisions that are. Also many other vendors lock voltages, its a way to stop people frying/RMA'ing the cards I believe.

But DCII7970 voltages still could be modded by hotwire if done right!

Ive used 2 DCII 7950s one didn't oc very well at all, but I didn't clean drivers so that may have been the problem. I want a second and maybe a 7970/matrix on a block as well

and well this one...

http://www.3dmark.com/fs/762043

http://www.3dmark.com/3dm11/6910745

best oc so far on air is 1260/1780

That's right, you had a DCII 7950 crossfire setup.. How were the temps in the limited time you had them?
post #30823 of 38704
Quote:
Originally Posted by JJ1217 View Post

That's right, you had a DCII 7950 crossfire setup.. How were the temps in the limited time you had them?

around 65-70*c on top card and 60*c on bottom.

that was stock, I could still have them but I haven't sleeved anymore cables and well not all games used xfire.. so I kind of didn't bother with it! plus it oc's like crap.

they looked friggin sweet together tho! my favourite design cooler of all time, although the new GTX 780 DCII looks awesome!
post #30824 of 38704
i'm using xfx 7950 and it's very noise sound from a both fans.

anyway to fix it?

Sorry for my english.

Thanks !!
post #30825 of 38704
Like a clicking noise when the fans speed up past a certain rpm? Has it always made this noise or after a cooler re-seat?
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post #30826 of 38704
Quote:
Originally Posted by Darklyric View Post

Like a clicking noise when the fans speed up past a certain rpm? Has it always made this noise or after a cooler re-seat?

i'm playing bf3
70 celcius with fan 70- 80 percent its very noise
post #30827 of 38704
try manually setting it to say 40% and see if the noise goes away. (not a fix just trying to make sure its the same issue i had with my xfx cooler on my dd 7870)

Not in game though as it might overheat!
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post #30828 of 38704
Quote:
Originally Posted by JJ1217 View Post

I understand the 7970 DCII is voltage locked, out of the three Asus 7950's I've had all have been great Ocers (and all voltage unlocked) and never had a problem. The 7970 DCII is the only problematic card imo from Asus, everything else they make is pretty great, look at their Nvidia series and other 7800 series cards.

yea apparently the 680 fell the same fate too, and the cooler is pretty horrible IMO especially how it doesn't actually cover the VRAM correctly, no overclocking at all here, not even memory.
   
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post #30829 of 38704
again its nothing to do with vendor just luck of the draw!

you find people say ''this card is the best in the world'' because it works for them well, or ''asus/gigabyte etc suck'' because they got unlucky with silicon/pcb

all manufacturers have their advantages and weaknesses!
post #30830 of 38704
how this ? windforce 7950 max temp at around 60c w/ 50% fan.


Edited by HardwareDecoder - 9/20/13 at 5:39am
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