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*SOLVED* HD 7950 locked voltage; Trixx allows voltage changes but Afterburner does not?

post #1 of 12
Thread Starter 
I just received the Gigabyte Windforce 7950 and went straight to overclocking.

After ticking to monitor and control the voltages, it seems that I still can't edit the voltage slider.



There has to be a way to raise the voltage, someone please assist.



SOLVED
Disabling the iGPU and Virtu from the BIOS somehow enabled the Afterburner voltage slider.

Edited by Wnivre - 10/19/12 at 4:16am
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post #2 of 12
Thread Starter 
32 hours passed and no one replied? I'm sad now frown.gif

Afterburner voltage is greyed out. AMD Overdrive doesn't have voltage options. Trixx, however, did let me raise the voltage:

Raising VDDC reflected a Vcore increase hence allowed a 1.2GHz overclock.

Why does Trixx allow voltage changes but Afterburner doesn't, what am I missing? I would very much preffer to use Afterburner if it would let you change the voltage.
Edited by Wnivre - 9/8/12 at 2:08am
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post #3 of 12
From a short research on this common issue, it could either be your drivers or Afterburner itself is corrupt. Try reinstalling both.

Someone fixed their issue with a NVIDIA card by updating their drivers

http://forum-en.msi.com/index.php?topic=160839.0
post #4 of 12
I got a 7970 last night and i noticed during a clean install of the 12.8 drivers it failed for "AMD App SDK" - everything works fine but i notice i am unable to hit the Overdrive tab in CCC, and in Afterburner the voltage is 0.

Pretty sure it has something to do with that.
post #5 of 12
Quote:
Originally Posted by jerrolds View Post

I got a 7970 last night and i noticed during a clean install of the 12.8 drivers it failed for "AMD App SDK" - everything works fine but i notice i am unable to hit the Overdrive tab in CCC, and in Afterburner the voltage is 0.
Pretty sure it has something to do with that.

It can't be that. I ran into the same issue and was unable to install that, but I was able to change my voltages on my HD 7950 in Afterburner just fine. "AMD App SDK" is just something for developers, not end users.
post #6 of 12
Thread Starter 
I tried re-installing video drivers (fresh Win7 reformat), and also tried the 'unofficial' Afterburner overclock. It still won't enable to voltage slider.
Only Trixx is letting me change the voltage, something's up with Afterburner. I don't understand why is Trixx the only OC software that's allowing voltage tweaks.
Edited by Wnivre - 9/10/12 at 6:55am
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post #7 of 12
Thread Starter 
Here's an image so you can compare:


I first opened Trixx and set an overlock, it clearly managed to to up to 1.25v. GPUz detected the increase.
Then I open AB on the left and you see that the voltage options for AB are grayed out. Added the settings window so you can see that i ticked to unlock boxes.


Is anyone having this issue where Trixx can overvolt but AB doesn't?
I already tried the "/xcl" shortcut and the unofficial overclock mode.

Can someone please enlighten me about what's going on; why can I only strictly overvolt using Trixx???



EDIT: Fixed!
I disabled the iGPU from the BIOS and now the AB voltage slider is enabled, it even now lets me change the memory voltage.

I can't tell if it was disabling Virtu support that made it enable voltage changing, or if it was the disabling of the iGPU entirely. But whatever as I don't need to iGPU anyway.
Edited by Wnivre - 9/10/12 at 6:51am
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post #8 of 12
will trixx be helpfull for me as i have 4 gigabyte 7970 and all of them are voltage locked === will the software allow me to raise the voltages and which version of trixx allows this .. i heard 4.40 modded
post #9 of 12
I'm bumping an old thread again to find out something.
I have the Gigabyte Windforce 7950s. When I unlock voltage control in AB, the slider appears and I can move the slider where ever and apply.
However the voltage does not actually change. All the voltage monitoring software still reads it as its stock voltage. Does this mean it's voltage locked?
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post #10 of 12
Hardware locked voltages maybe, I am having the same problem. mad.gif
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