Quick tip for overvolting flashed 6970's

[Shayper]

Hi guys

Just been messing with afterburner, you know, the program that can't be used to overvolt 6950's that have been flashed to 6970's?

Well i just found out how to.

You need the beta version of the program, google is your friend. Go into settings. Now, on the first page is a little button that reads "force constant voltage" (obviously you need to select the options for unlock voltage control and monitoring first ).

This magical checkbox allows you to change the voltage to whatever you want up to 1.4v (you can fix this if you really need to ). I have managed to get my card stable at 1ghz core at about 1.25v, but the temps were pretty mental.

Have fun guys, hope this helps

 

[J.D]

Nice one, I've been doing it through RBE and benchmarking over the last 2 hours. Every time I flashed the Asus BIOS, SmartDoctor wouldn't work for me and I tried MSI Afterburner with the "MSIAfterburnerVoltUnlock.zip" file I downloaded but again that didn't work.

I didn't try "force constant voltage" though .

Could you tell me the beta version please?. I have version 2.0 and 2.1.0 Beta 6.

If this works for me then great as it will save me having to mod a BIOS in RBE, flashing and rebooting. Modding the BIOS in RBE and flashing takes seconds, the reboot only takes 30 seconds and I'm ready to go with higher voltages but it would be sooo much better just using Afterburner.

I've only unlocked shaders but I'm at 6970 stock voltage 1.175 through RBE and can run 975/1500 no problem at all. p5128 3dMark11 with rig in sig.

http://3dmark.com/3dm11/477062

 

[Shayper]

Yeah I'm using 2.1 b6 for afterburner mate

 

[gareth170]

using force constant voltage stops powerplay from lowing the voltage at idle.

 

[Shayper]

Yes, but overclocking it using afterburner does that anyway

 

[gareth170]

but overclocking it using afterburner does that anyway

nope..

with asus 6950 unlocked shaders bios powerplay still works when overclocking using afterburner

 

[J.D]

Shayper that worked fine. Thank you. Although it's not needed now that I know the limitations on the card. I've just set my BIOS at 1.175 volts again after reaching 1Ghz core @ 1.225 volts.

Memory, well 1500Mhz is about my max 1530Mhz was crashing and I was struggling to get over 1000Mhz on the core. I'm happy at that though . I'll just stick to either 950/1450 - 950/1500 - 975/1450 - 975/1500 @ 1.175 volts as some games ramp up the heat more than others so I'll change it if I feel the card is getting too hot as I don't want to ramp the fan speed up. I could use up to 70% fan speed with my headset on but would like 55% and under when not using the headset.

nope..

with asus 6950 unlocked shaders bios powerplay still works when overclocking using afterburner

I tried to flash the ASUS BIOS over which worked, however, SmartDoctor failed to find an ASUS card. I tried the stock BIOS, the one you linked too in the 6950 unlocking sticky and I even unlocked the stock BIOS of the ASUS 6950 and none would let SmartDoctor detect my 6950 as an ASUS card.

I'm not wanting to try it again as it's a PITA. Also RBE is simple to use and is quick.

As for Powerplay, now my 2D clocks are at 475/725. I'll try and uninstall MSI Afterburner, clear any files and re-install as I don't need the voltage change now as I can do this in RBE.

 

[gareth170]

I tried to flash the ASUS BIOS over which worked, however, SmartDoctor failed to find an ASUS card. I tried the stock BIOS, the one you linked too in the 6950 unlocking sticky and I even unlocked the stock BIOS of the ASUS 6950 and none would let SmartDoctor detect my 6950 as an ASUS card.

I'm not wanting to try it again as it's a PITA. Also RBE is simple to use and is quick.

As for Powerplay, now my 2D clocks are at 475/725. I'll try and uninstall MSI Afterburner, clear any files and re-install as I don't need the voltage change now as I can do this in RBE.

u need SmartDoctor 5.74

 

[J.D]

u need SmartDoctor 5.74

Thank you Gareth.

To be honest, it was probably me having the wrong version. I can't even check as I deleted it last night. I might give it a try when I want to have a mess about as I'd like to see the options provided with SmartDoctor but I'm pretty happy with RBE for until then.

I've sorted my Powerplay as you'll read below.

I thought removing AfterBurner would change my default clocks but it didn't work. Then I re-flashed with my voltage modded (1.175v) unlocked shaders HiS BIOS (Modded original BIOS) and still the default clocks where at 475/725. Re-installed the drivers and it's all fine now and still at my voltage required.

This is from UnWinder,

"Force constant voltage" in the properties. It will force Afterburner to overwrite all 4 voltage LUT entries of VT1556 at once so it won't be important which VID entry is mapped to 3D power state, it will kill 2D/3D voltage switching but won't require you to modify any configuration files manually.

I should have done the drivers first but I was of the thinking if AfterBurner changed this then the removal of AfterBurner would rectify my problem, oops. After I read the above quote I thought something in my 6950 BIOS had been changed so I re-flashed with the BIOS I modified last night and denied again. It makes sense it's the drivers now but not to begin with. I feel like a bit of a plonker but at least I learned what's going on. Everything is sorted now.

So if you don't want to mess with Powerplay settings and don't want to use the ASUS BIOS to set voltages then just use Radeon BIOS Editor (RBE) to modify your backed up Original BIOS with 6970 voltages and keep your low idle clocks .

 

[Meridiusuk]

Hi all i have a ati sapphire vapour-x 5770 and was wanting to know if there is a way to keep the card mem clock at 1200mhz ?

the reason i am asking is i am running 3 monitors and my mem clcok is at 1200mhz which is fine but when i run vidoes that use graphics hardware acceleration it drops to 900mhz which casues tear and flickering on my 2 dvi monitos not the displayport monitor with active displayport adaptor.

the thing is that is only the 2 monitors that are connected using the DVI that tear and flash when playing video but my 3rd monitor that has a dvi to displayport active adaptor conected to the displayport of the gfx card does not do it.

its straneg thats its only the dvi ports that are doing it and not the displayport as all monitors will sync the same on the memory clock of 1200mhz to 900mhz why does the displayport monitor not do this ?

another thing is that my displayport monitor is hooked up using a dual dvi cable wheres my other 2 monitors that are connected to the dvi are using a sinlge dvi cable do you think this could be the reason a dual link dvi cable might help this from happening ? i know a single dvi cable can go up to 1920x1200 which is what my monitors are but i am woundering if its the displayport connector or the dual svi cable that might not make this monitor flash or tear.

what do you think have you tried a dual dvi cable to see if it stops this or do you still think its a gfx hardware or bios problem.

thanks