"HD7970 & HD7950 Results Thread - Torture Your Card, Post It Here!"

[the_real_7]

Afterburner beta 11 will set the default volts for your card based on its ASIC binning level. So you can see it in the voltage monitoring.
There have been some rumors going around that the cards will crash if you give them more than 125mv over the stock voltage. If this is true, this could be why people with 1.050v Vid cards are crashing as soon as the card hits 1.2v of "real" voltage (happens at about 1.25v of target voltage, with vdroop). And would also explain why people with 1.112v Vid cards can't use 1.3v target voltage. This needs more testing.

I get you Falkentyne makes plenty sense now im thinking about it , I have 1.112v cards also and get crashes at 1.3 but then i get artifacts at 1.25 , but card will run full overclock at 1.18 perfect , they must over volt a bit to what we are picking vcore , i check gpu z and at idle says om running 0.950 , love to test with my multimeter to know what going on the insides for sure , if anyone knows the points

[OC Nub]

you ca try gpu tweak

http://www.mediafire.com/?t2lt36eiulfy197

enable advanced mode on left coner

setting...tuning....enable overclocking range enhancement

sorry but i have another stupid question.

is there a way to unlock the clocks with this program? either i am missing something, or it is limited to 1125mhz core.

EDIT: sorry for the dumb question, got it working now.

[Martin.v.r]

have change bios 0 out with an asus latest bios , but can not get the external voltage seen to be working with ASUS GPUtool
using win7 64bit pro
can see there are several who have the same problem by google, some who know the answers to the

[MetalRacer]

The new GPU-Z is out with a new feature making it possible to check your ASIC quality.
http://www.techpowerup.com/forums/sh...d.php?t=159098

[CplWolverine]

Hi guys, just installed my card and put it under water (Koolance block). My ASIC quality is 77.9%, 1.112v. My card doesn't crash at 1.3v, but adding more voltage doesn't help my overclock at all as I'm stuck at 1,225mhz as my stable core speed playing BF3 and testing with Furmark.

That's too bad... I was really hoping for a bit better of a chip especially being under water. Oh well, can't complain too much. Still a 200mhz core overclock and nice and silent without the leaf blower fan Not trying to hit records, just game. Still would've liked to see a good 1,320 or something. *sniff*

[Elfear]

Thanks for the heads up MetalRacer.

[Roadhog]

7970 #1: 79.9%
7970 #2: 83.6%
7970 #3: 74.5%

[OC Nub]

Got the Koolance water block installed today. This is not a great clocking card, but it did gain a few mhz with better cooling.



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[OC Nub]

flashed the bios, added some juice. Heven Extreme Preset 1359/1830.



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[aussie-revhead]

How much volts for 1359?

[OC Nub]

^ about 1.33v

Maxed out at 1369mhz, any higher and it artifacts.

I havent been to sleep yet, its 9:45am, been up screwing with this thing all night. With ac the card idles at 15c and never hits 20 under load.



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[Martin.v.r]

OC Nub bios ?

[jeanjean15]

OC Nub : your screenshots are too small . We don't see anything.

[OC Nub]

I think this bios is meant for LN2, got it from Kingpin Cooling forums. I would NOT recommend it for air, probably not water either.

http://kingpincooling.com/forum/show...5&postcount=57

[Martin.v.r]

bios is only 64kb? it can fit

[aussie-revhead]

Nub - yeah I can't read your screenshot but I bet your temps are still good on water right? But that voltage is fixed at 1.33 and not adjustable? Is that actual 1.33 or target? At least with dual bios you can easily switch between the higher volae bios and default

[OC Nub]

The bios is not fixed, you need to use Asus GPU Tweak to adjust the voltage, afterburner will not work.

Sorry about the bad screen shots. I used hwbot's heaven benchmark to take the screen and save the file.

[OC Nub]

Here is a better screen I hope. Temps are a little warmer, had the ac blasting earlier, temps were about 5c cooler.



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[Dumo]

Awesome clock there OC

24 hrs. straight OC n' tweakin?....I missed those fun times

[OC Nub]

Awesome clock there OC

24 hrs. straight OC n' tweakin?....I missed those fun times

Thanks Dumo!

Its a lot of fun but Im feeling it today. I am still awake, wife showed little mercy, had me working around the house most of the day.

[aussie-revhead]

Awesome mate, is it a modded tweaker or will the stocker work? Any 3d11 and Vantage runs yet ?

[Mr. K6]

Just found my max clocks of 1340/1775MHz, got 10402 in 3DMark11 - http://3dmark.com/3dm11/2606439 . These cards are absolute beasts under better cooling .

[tbone8ty]

anybody get any better cooling results when changing TIM? or is it not necessary?

[LightSpeed]

anybody get any better cooling results when changing TIM? or is it not necessary?

I think I read that AMD uses the same phase change TIM as they did on the 6990 so I doubt theres much room for improvement with paste alone.

[zpaf]

Just found my max clocks of 1340/1775MHz, got 10402 in 3DMark11 - http://3dmark.com/3dm11/2606439 . These cards are absolute beasts under better cooling .

Very nice clocks.

Can you run a unigine with these settings 1340/1775 to see your score.