Working NVFlash that can flash modified GTX970/980 BIOS's

[Besty]

Ok. Will do some more testing.

Could be a placebo but card is a lot more stable with max voltage, am seeing 1585 stable on 3dMark 4k +87mv. It was instant crashing before with that much voltage.

 

[Ayahuasca]

I might edit the bios so they hold around 1.25v and it doesn't lower. Will save me using K-Boost if I can do this. The main reason overclocks aren't stable on these 9 series cards is because of lag when cards change voltage on the fly in games or benchmarks. I'm not sure if it's something nvidia ever fix with drivers either as it's only an issue with high overclocks.

 

[rtho782]

I can't get this to work at all. I've doubled every value in the power limit screen, but it drops my core clock speeds in half?!

Can anyone post a modded EVGA SC bios with removed/doubled power limit?

 

[JamesM]

GPUz is a bit hit and miss with reporting the correct voltages when the bios has been edited.

Going to use a multi meter tonight and check that way to see exactly what the core is getting.

 

[rtho782]

Seem to have increased the power limit to 180% when set in MSI.

Will fiddle with voltages next

 

[Besty]

I can set 150% power-limit in both afterburner and PX but it does not seem to actually do anything.

 

[rtho782]

I can set 150% power-limit in both afterburner and PX but it does not seem to actually do anything.

Mine seems to, I have seen it go way over 125 now in 3dmark.

I'm actually fiddling with it via teamviewer at the moment because i'm stuck at work but it seems to be working.

 

[thesmokingman]

It's too bad there's no voltage control yet. Or will there ever be? Crosses fingers.

 

[Besty]

well the BIOS posted on overclock gives me up to +100mv but anything over 1600MHZ is really unstable for me at any voltage.

 

[Ayahuasca]

Have you tried using K-Boost to lock it at the highest voltage to see if it's stable.

 

[Boldie007]

Many thanks, my ACX is now a SC ACX

 

[Dicehunter]

I hope someone out there makes a Strix compatible bios with raised voltage to 1.28, Power limits etc... as I'm not very confident when it comes to bios editing

 

[Besty]

Just thought I would report back and say I got the custom BIOS working on my EVGA SC.

During testing I have seen the PL boost to around 140%.

I can now set 156% PL +100mv without the card crashing. All tools report 1.275v however, I think that the actual voltage is a lot higher than that. Kboost disable does not work so, we still need to wait for skyn3t bios.

Results? In terms of actual clocks, I think an extra 20Mhz on the core however, as the card is not down-clocking at all, the actual performance benefit will be higher than that.

 

[Gregster]

You would need a multi meter to test what the actual voltage is and AB/PX wouldn't report correctly.

 

[Pr3d4t0r]

could someone explain what this is actually for? am running msi 970 at 1480core and 7ghz ram, would flashing bios help me get better speeds?

 

[Besty]

could someone explain what this is actually for? am running msi 970 at 1480core and 7ghz ram, would flashing bios help me get better speeds?

It allows you to raise the thresh-holds of the card beyond what air-cooling is capable of. You need to be water-cooled, if you are running a stock card you are ok as-is.