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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 905

post #9041 of 38704
Quote:
Originally Posted by LAF View Post

Those are already 7970 clocks! I can only do 1200/1600 on my 7970 on air, and you're wrong, I can't max BF3 with 60fps. I run everything max, no motion blur, and 2xMSAA, and get ~80+. But if I run 4xMSAA, I get dips into the 50's as well.
However, in terms of what you were saying about voltage, I believe +125mV is a hardware limit. I know it's relaxed on the Lightnings, maybe some other nonref cards too, but reference cards have that hard limit of +125mV, no matter what you set in Afterburner.

Here is what happens to me to:
Quote:
Originally Posted by Hambone07si View Post

That's what everyone keeps saying. I have reference cards and I just ran 3dmark11 @ 1250/1600 1.200v Failed, 1.225v Failed, 1.250v Passed. My cards are 1.049v stock, both are good ASIC 86.1% and 86.5%. So for what I just passed was .201v over stock. Any less and Fail. No OCP kicked in, but I am testing with UOM set to 2 now instead of 1.

Its strange because hwinfo reads same voltage when on load. ~1140mV but with higher voltage in AB i get higher clocks which makes no sence to me.

Hambone07si can u check ur voltage in hwinfo at 1200mV and 1250mV? I wonder if they are the same. You have to test it under load. Because in idle hwinfo shows ~25mV less then in AB no mather what i set it to. Thats weird too. In idle through my card runs 1175mV on load only 1140mV..

And with my OC i figured that 7950 is 2-3% worse performer then 7970 at same clocks. So i'm really satisfied with my purchase. Especially cuz i got my card for 300€ unused:)
post #9042 of 38704
Anyone here know how to reset bios?
I tryed to turn the PC off and boot up while in BIOS2 (the supposed to be reset bios) then turn it off again without taking the PSU power off and switch to BIOS1. But it doesnt look like it have been reseted.
Anyone with GPU-Z and stock bios who can post the Bios version?

Thank you!
post #9043 of 38704
You can't reset bios, you have to reflash bios u have now with previous bios. If u haven't done a backup ask someone who has the same card as u to send u the bios and then reflash it.
post #9044 of 38704
Quote:
Originally Posted by Andrazh View Post

You can't reset bios, you have to reflash bios u have now with previous bios. If u haven't done a backup ask someone who has the same card as u to send u the bios and then reflash it.

So what was the point with having 2 bios then?
I actually got told here that BIOS2 is for reset. So ye
post #9045 of 38704
Andrazh
What are you temps and fan speed on your 24/7 OC?
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post #9046 of 38704
Just ordered a Sapphire HD 7970 OC for $610 from Umart (cheapest here I could find in Australia) along with an extra 8gb of corsair vengeance ram wink.gif Gonna be fun putting it in my rig when it shows up at the door!
post #9047 of 38704
Quote:
Originally Posted by Aventadoor View Post

So what was the point with having 2 bios then?
I actually got told here that BIOS2 is for reset. So ye

If your card dont boot on flashed bios u have second bios as backup. But then u have to reflash the first bios to get it working again.
Quote:
Originally Posted by sena View Post

Andrazh
What are you temps and fan speed on your 24/7 OC?

I got fan profile set from 30%/40°C to 80%/80.

In BF3 i get 65° with v-sync on and about 70 with it off and thats my max temp.
post #9048 of 38704
this is strang !! set the volt it 1.212 and core 1170/1500 staple 100% in heaven benchmark dx11 max setting

but after 4 minute in BF3 i have a hard frezz AND I HAVE TO TURN THE PC OFF ??? *** is it driver issue
post #9049 of 38704
I found for my card that Crysis Warhead is best for stabilty testing.
I could pass Crysis 2 and Heaven 2.0. But i would get crash in Crysis Warhead.
Andrazh
I assume its preety noisy, my ears are preety sensitive so i prefer less perfomances for better acoustics.
My card is about 60-62C in Crysis Warhead, 1.049V.
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post #9050 of 38704
Quote:
Originally Posted by mltms View Post

this is strang !! set the volt it 1.212 and core 1170/1500 staple 100% in heaven benchmark dx11 max setting
but after 4 minute in BF3 i have a hard frezz AND I HAVE TO TURN THE PC OFF ??? *** is it driver issue

Your overclock is unstable. I usually try some heaven bench runs followed by 3dmark11 runs and scan for errors and artifacts. If the card passes all of that, then the last step is to try BF3. I have had my card pass every test/bench I threw at it but then still fail in BF3 redface.gif
Bump your voltage a little bit and see if you can get BF3 stable. That is usually all it takes but definitely keep trying.
Edited by AV98911 - 4/15/12 at 4:20am
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