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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 82

post #811 of 38704
No matter what voltage I throw at my card I get errors in OCCT above 1020mhz core.

I can play games at 1060mhz or so but anything above that and I see artefacts.

I have tried 1.28v @ 1100mhz and I get a ton of errors.....

Did I just get unlucky with the card?
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post #812 of 38704
To add to that - I cant even get 1050mhz stable at 1.28v
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post #813 of 38704
Quote:
Originally Posted by trippinonprozac View Post

No matter what voltage I throw at my card I get errors in OCCT above 1020mhz core.
I can play games at 1060mhz or so but anything above that and I see artefacts.
I have tried 1.28v @ 1100mhz and I get a ton of errors.....
Did I just get unlucky with the card?
Quote:
Originally Posted by trippinonprozac View Post

To add to that - I cant even get 1050mhz stable at 1.28v

throwing a ton of voltage at the card is not necessarily the answer. i've had better luck with small increments in voltage (like Vega suggested earlier in the thread).
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post #814 of 38704
Quote:
Originally Posted by Levesque View Post

+1.
That's exactly why I'm saying that the 7970s will OC much higher with waterblocks, since those toasty VRMs will stay nice and cool­ biggrin.gif
We are all imited by our VRMs temps right now on air.
Just wait and see. We will now soon enough.

So is it safe to say that the higher VRM temps from the oc'd XFX BEDD in the guru french review is a problem with the design of the 7970 and not the XFX card itself? Also do these only work on reference cards and how difficult are they too install? http://www.arctic.ac/en/p/detail/index/sArticle/502/sCategory/2182
Edited by rcfc89 - 1/15/12 at 7:44pm
 
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post #815 of 38704
So I decided to undervolt to 999mv and was able to maintain a stable OC at 1050/1475. Temps have dropped to low-mid 70s doing this. LOVE IT!
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post #816 of 38704
Thread Starter 
Quote:
Originally Posted by rcfc89 View Post

Quote:
Originally Posted by Levesque View Post

+1.
That's exactly why I'm saying that the 7970s will OC much higher with waterblocks, since those toasty VRMs will stay nice and cool­ biggrin.gif
We are all imited by our VRMs temps right now on air.
Just wait and see. We will now soon enough.

So is it safe to say that the higher VRM temps from the oc'd XFX BEDD in the guru french review is a problem with the design of the 7970 and not the XFX card itself? Also do these only work on reference cards and how difficult are they too install? http://www.arctic.ac/en/p/detail/index/sArticle/502/sCategory/2182
No! mad.gif
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post #817 of 38704
I tried small voltage increases too but nothing worked!

Reached its 100% stable limit at 1020mhz.
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post #818 of 38704
I ordered one off their website earlier, international 3 day shipping came up to a total of 121 bucks which is 5 bucks cheaper than frozencpu.com has them listed as and frozencpu won't get them in stock til the middle of the upcoming week. I should have my waterblock by wednesday or thursday so I'm pretty stoked.
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post #819 of 38704
Quote:
Originally Posted by Evil Penguin View Post

No! mad.gif

It was just a question chill out. I'm probably sending my BEDD's back just saying its looking as if the 7970 already has issues with high VRM temps when oc'd. Also has anyone tried to install the fans I mentioned http://www.arctic.ac/en/p/detail/index/sArticle/502/sCategory/2182
 
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post #820 of 38704
Thread Starter 
Quote:
Originally Posted by rcfc89 View Post

Quote:
Originally Posted by Evil Penguin View Post

No! mad.gif

It was just a question chill out. I'm probably sending my BEDD's back just saying its looking as if the 7970 already has issues with high VRM temps when oc'd. Also has anyone tried to install the fans I mentioned http://www.arctic.ac/en/p/detail/index/sArticle/502/sCategory/2182
I was chilled out. wink.gif
VRMs had nothing to do with it.
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