*** Official HD6XXX Series Overclocking Thread ***

[Bullu$]

@Stoned
Can't see wich settings u use in the benches.

[The_Game]

Someone tried the new RBE?
http://www.techpowerup.com/141982/Te...-Released.html
Interested if it's working correctly now with 69xx I`m at work now and will try it when I'm back at home.

[InCredible]

i just put my case back together so im not excited to flash it again after doing it a lot yesterday changing voltages etc to get 1000mhz core.
but i may give it a shot later, especially if someone posts back saying you can change clocks.

[nvmc]

Didn't do much overclocking on air, just unlocked and ran my 6950 at stock 6970 speeds. Put it under water yesterday, and I hit 1GHz at 1175mV, the stock 6970 VID IIRC. Not a lot of scaling going on beyond 1GHz though. I hit 1025MHz at 1250mV, and I'm still testing. Should I be cautious about the amount of volts? Or should I keep going so long as the temps are in check? Loading it at 46C presently.

Edit: Link to GPU-Z validation at 1045MHz, 1275mV.

[The_Game]

Your temps are good try for more. Here is my max overclock for 3D Mark 06(unlocked 6950 with stock cooling at 100%).
http://store.picbg.net/pubpic/FB/B0/...c4c22dfbb0.JPG

[Alex-Ro]

Pretty damn good GPU,what voltage are you using?So far i got 1050 for vantage and 1060 for 2003,maybe 2006 ill squeeze something more

[The_Game]

1.35 or 1.4v cant remember .

[Bullu$]

1.35 or 1.4v cant remember .

Nice on air cooling
Wich brand?

Mine highest with vantage (watercooling)

[The_Game]

Nice on air cooling
Wich brand?

Asus.
It seems your is a good one too, how much voltage for 1075MHz core on water? Also good memory clock may be the water helps mine can't pass 1500.

[nvmc]

Do we have a solution for going past 1.3v (modded 6950 BIOS) in AB? There really isn't a lot of headroom for people on water with the default limit.

[zalbard]

See this for AB voltage unlocker.
You can also use RBE for more voltage.
I am personally waiting for 6970 Lightning BIOS, hopefully it'll work with reference cards and give us huge voltage limits and the ability to adjust vMem and VDDCI.

[nvmc]

I was one of the first unlucky few who ended up with hosed vRAM on a Sapphire 6950, so I think I'll hold off on any vmem trickery. At least until some people with deeper pockets try it first :p

[Bullu$]

Asus.
It seems your is a good one too, how much voltage for 1075MHz core on water? Also good memory clock may be the water helps mine can't pass 1500.

It was with 1.375V I think..
Using a mcw-60r, mems are cooled by heatsinks.

[The_Game]

It was with 1.375V I think..
Using a mcw-60r, mems are cooled by heatsinks.

What about the VRMs?

[Bullu$]

Also with heatsinks, with a 120mm fan.

[PC_User]

I'm using Afterburner to overclock my 6950. I have all of the overclocks unlocked (via config file). However, whenever I increase the voltage past 1.1v, the settings to not take effect.

The program displays 1.15v, for example, but the voltage never goes past 1.1v in Furmark or games. What is causing this? How can I have the voltage actually increase to what I set?

[InCredible]

i used rbe 1.27 to take my bios..well an unlock 6970 bios and change voltage like that to get the increases to take effect so i could clock a bit higher..i couldnt get anything playable in games over 915. But i went upwards to 1.3v and got some benches in at 1000core/1500mem and some gaming done at 975mhz core ..plan to try a little more once i get a new aftermarket cooler.

[nvmc]

What's a good solution for stress testing now that OCCT/Furmark trigger throttling? I've just been using Heaven/Crysis/[new graphically intensive game] as a measure of stability.

[EniGmA1987]

If Furmark and OCCT trigger throttling on the card, then there isnt really a point in OCing higher anyway I dont think. Anything higher and you will just trigger throttling more in games.

[japamd]

Sorry if it was already posted, but some guy (I'm not sure if it's RBE's developer or a friend of him) discovered a way to patch the registry to expand CCC overdrive limits the same way Asus does, but you're not limited to Asus bios. It's a simple registry entry with some binary values and can be easily reverted (just delete the registry key). I did used the patch and now I have very higher limits on CCC.



Thread at TPU: http://www.techpowerup.com/forums/sh...d.php?t=141858

[egandt]

Using 11.4 preview, on my 6970 and I get startup temps listed as 56c (this is waking after sleeping so the actual temp is closer to 25c, it then creeps up about 73c and stays there. At the same time After burner and CCC say the fan speeds remain between 20 and 40%, yet the RPM meter says the fan is running a 5600rpm (which is I believe 100% or close to it). basically I can not use this for gaming as the sound it just crazy. I replaced a 5870 in the same slot and it's fan never exceeded 30% even under load.

Is it the preview version (which I needed to run Dragon Age 2, or is it a bad card)?

Thanks,
ERIC

[nvmc]

If Furmark and OCCT trigger throttling on the card, then there isnt really a point in OCing higher anyway I dont think. Anything higher and you will just trigger throttling more in games.

The throttling is triggered by the application being run, not the power usage.

[lowfat]

Has anyone had luck flashing their overclocks to their bios? I have successfully flashed my Vgpu to 1.3 but every time I try to raise the clocks, Windows will not load.

[InCredible]

^ i dont think thats supported yet in rbe..from what i remember reading it wouldn't work and i havent read that its been changed even in rbe 1.28..so i think you still manually have to OC in windows.

[Gaul]