7970 changing voltage in Afterburner does nothing

[ruhtraeel]

Hello,
I have a Sapphire 7970 OC w/boost (the blue PCB one), and I'm using MSI Afterburner to overclock it. I am using the second BIOS setting, where the core clock is 1000mhz and memory is 1425mhz.
My card's ASIC quality is 81.7%, so its stock voltage is 1050mV.

Initially, I was confused as to why I couldn't get to 1050mhz core without the display driver crashing and occasional artifacts in games. However, upon checking MSI Afterburner's hardware monitor and looking at the voltage, even though I have upped the voltage to 1113, and even 1163 at one point, the hardware monitor says that the card's current voltage is still 1050. I can change the slider fine, but it seems to have no effect on the card.

How can I change the voltage? I'm assuming this is the reason I can't OC the card very much right now. I have added the EULA into the .cfg file and enabled unofficial overclocking and such.

I remember when I tried the newest version of TriXX, I couldn't even find a gauge or slider that allowed me to change the voltage.

I'm pretty sure this card isn't voltage locked, how would I actually change the voltage?

Thanks

EDIT: Apparently ticking "force constant voltage" makes my voltage applied, and it seems to work in game, but I would like to avoid that if possible (although my card seems to always run at 1.050V anyways). Is there any other way to do this? I'm thinking of just using VBE7 and flashing my own custom BIOS onto the card.

 

[Accord99]

Here's a few things that might help in Afterburner:

-Check Force constant voltage
-Check Disable ULPS
-For the Unofficial overclocking mode, select "without Powerplay support"

 

[Makaveli]

Hello,
I have a Sapphire 7970 OC w/boost (the blue PCB one), and I'm using MSI Afterburner to overclock it. I am using the second BIOS setting, where the core clock is 1000mhz and memory is 1425mhz.
My card's ASIC quality is 81.7%, so its stock voltage is 1050mV.

Initially, I was confused as to why I couldn't get to 1050mhz core without the display driver crashing and occasional artifacts in games. However, upon checking MSI Afterburner's hardware monitor and looking at the voltage, even though I have upped the voltage to 1113, and even 1163 at one point, the hardware monitor says that the card's current voltage is still 1050. I can change the slider fine, but it seems to have no effect on the card.

How can I change the voltage? I'm assuming this is the reason I can't OC the card very much right now. I have added the EULA into the .cfg file and enabled unofficial overclocking and such.

I remember when I tried the newest version of TriXX, I couldn't even find a gauge or slider that allowed me to change the voltage.

I'm pretty sure this card isn't voltage locked, how would I actually change the voltage?

Thanks

EDIT: Apparently ticking "force constant voltage" makes my voltage applied, and it seems to work in game, but I would like to avoid that if possible (although my card seems to always run at 1.050V anyways). Is there any other way to do this? I'm thinking of just using VBE7 and flashing my own custom BIOS onto the card.

That's what I did.

Didn't care to be messing around with those apps just find your most stable clocks and modify the bios with them done deal.

 

[ruhtraeel]

On a side note, is it safe that my 7970 idles at 68 degrees C? I have 3 monitors, so idle temperatures have always been higher (it was around 35 degrees back when I only had one IIRC). During gaming, it only gets to around 75, and running 3dmark Firestrike puts it at 82 max.

Is it fine for it to be constantly at that temperature?

 

[Shmee]

Yes, it should be fine. Fan will crank up/down as needed.

 

[ruhtraeel]

Yes, it should be fine. Fan will crank up/down as needed.

Out of curiosity, how hot can the GPU run before I should start worrying?

 

[Shmee]

Each chip family has a different rating, not sure on Tahiti(7950/7970/280/280x), but with the R9 290/390 series, I believe they are good up to 95 before they start throttling.