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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 544

post #5431 of 38704
Quote:
Originally Posted by Darco19 View Post

Just picked up my Asus HD7970 DirectCUII and it's pretty terrible I have to say.
Quote:
I can't get 1200mhz on the core stable,

Neither can the majority of owners mate, why does that make it terrible? Have you really returned two cards just because they are not stable at 1200?
post #5432 of 38704
Asus advised me not to tighten the screws or touch it. They said I should I return it back to the shop and get a refund (they didn't say replacement and I'm guessing that's a GOOD thing).
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post #5433 of 38704
Is anyone getting good results with the 12.3 drivers? I'm still using the 11.12. Tried the 12.2 and that was a mess. Hoping the 12.3 are working better and also I'm running 2 cards, so hope no crossfire issues.
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post #5434 of 38704
Quote:
Originally Posted by eikei View Post

Have a look at this material: http://forums.overclockers.ru/viewtopic.php?f=106&t=435579&p=9405882#p9405882
It's in Russian, too much to translate, but basically the article is about a very serious problem with reference 7970 cooler. As you can see on the photos, there is practically no contact between aluminium plate and thermal pad on vrm. Has anybody disassembled the reference 7970?

Looks like my card has no problem with vrm cooling because temps are quite low.


How do you read VRM tempertures ?

GPU-Z does seem to do it on these cards yet.

 

Also anybody care to tell me what is the max safe voltage and how do I overclock past 1125 on the core with MSI afterburner, mine stops at 1125  ?


Edited by quakermaas - 3/2/12 at 7:37am
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post #5435 of 38704
Quote:
Originally Posted by Darco19 View Post

I'm tempted to completely give up on AMD's 79XX series right now from the luck/crap I'm going through. First one was a poor OC'er and was a bit too hot for my liking, second one was a non-reference from Gigabyte that ran amazing but had a coil whine, and now my 3rd one hasn't even been tested properly. I wonder what my 4th one is going to be...
Just waiting on the email from the shop from where I bought it from gives me permission to dissemble the card and let me see if there's anything else loose in there as I don't want it to void my warranty and all.

Overclocking limits are always luck, cannot slam a card for that.
Asus have a faulty product, one line from one vendor........
Coil whine, mine buzzes also but negligable.

HD7970 is the best card I have bought since the HD5870. Best card before that was the 9800GT.
post #5436 of 38704
quakermaas, you have to go into the config file in Msi folder. You have to change Unofficial Overclocking mode to "1" instead of "0"
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post #5437 of 38704
Quote:
Originally Posted by Hambone07si View Post

quakermaas, you have to go into the config file in Msi folder. You have to change Unofficial Overclocking mode to "1" instead of "0"


Aye just done that  thumb.gif, so any idea on the max voltage to be in a safe zone, providing temperatures are OK ?

 

Also, just noticed I can over-volt the memory, what is the max safe voltage on it ?

 

msi.JPG


Edited by quakermaas - 3/2/12 at 8:00am
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post #5438 of 38704
Safe voltage depends on your temps of course. I'm on water and my max temps are 42c with 1.250v.. Safe max for me is 1.300v(max). Safe for air, well I'd say 1.200v if temps are under 80c. Just my preference.
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post #5439 of 38704
If you read the thread, there is technically no 'safe' max, as you are strictly limited to .125mV above stock. If your 7970 stock voltage is 1.050V, you could set the voltage slider to 1.9V and it'd still only get 1.175V pushed through it, it's a hardware feature of the cards.
post #5440 of 38704
Has anyone been running their cards with extra volts on the memory?
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