How to enable additional shaders on Radeon HD 6950

[telafidium]

Powercolor 6950 successfully flashed to 6970 but having stability problem, no artifacts.

awwh man, even at 800/880 clocks with 1375 memory, it still crashes

I'm starting to think I got a dud card...

 

[harblhat]

Hi there, registered just to participate in this thread.

Just bought a XFX 6950 today and unlocked it following the instructions in this thread. Have many problems!

First, I get some very irritating coil squeal when running almost any game, never mind benchmarking.

Second, games like Crysis and Civ5 crash to desktop with windows specifying a 'low memory' error. This is a major issue!

Third, is there any way to increase voltage by 20% without CCC? I tried installing it but the package kept giving me an error message that it failed to install no matter what I tried (and this was before flashing!)...

Help would be appreciated! Thanks!

 

[FtRazer]

Hi there, registered just to participate in this thread.

Just bought a XFX 6950 today and unlocked it following the instructions in this thread. Have many problems!

First, I get some very irritating coil squeal when running almost any game, never mind benchmarking.

Second, games like Crysis and Civ5 crash to desktop with windows specifying a 'low memory' error. This is a major issue!

Third, is there any way to increase voltage by 20% without CCC? I tried installing it but the package kept giving me an error message that it failed to install no matter what I tried (and this was before flashing!)...

Help would be appreciated! Thanks!

Have them same problem even when i flashed back to 6950

 

[yonef]

... is there any way to increase voltage by 20% without CCC? I tried installing it but the package kept giving me an error message that it failed to install no matter what I tried (and this was before flashing!)...

To clarify things, CCC will NOT change voltage no matter if you set powerplay to -20% or +20%. This is not a voltage control! This will control the amount of power (Watts) that will flow to GPU before it starts to throttle. Changing it will NOT give you higher OC freq. for GPU/Mem. And there is NO other software to controll PowerPlay feature other than CCC.
If you want to change voltage of the GPU then you have to use Trixx. But using trixx(or Afterburner, SmartDoctor) will disable the powerplay function in CCC.

 

[telafidium]

Instability issue fixed!

The problem was in 6970 bios, my powercolor doesn't like it somehow.

Instead of replacing it with 6970 bios, I used a modded 6950 bios that just unlocked the shaders while keeping GPU and memory clock the same.

it worked.

 

[itsdanny]

To clarify things, CCC will NOT change voltage no matter if you set powerplay to -20% or +20%. This is not a voltage control! This will control the amount of power (Watts) that will flow to GPU before it starts to throttle. Changing it will NOT give you higher OC freq. for GPU/Mem. And there is NO other software to controll PowerPlay feature other than CCC.
If you want to change voltage of the GPU then you have to use Trixx. But using trixx(or Afterburner, SmartDoctor) will disable the powerplay function in CCC.

No, Trixx works fine. It doesn't disable PowerPlay for me.

 

[Jeager]

No, Trixx works fine. It doesn't disable PowerPlay for me.

I think it only work for non modded cards

As for the voltage, is there a new version of trixx ? because you cant change them in the 3.02.

 

[coldrazor]

happy!

Im running a XFX at 880/1375 with 6950 mod since january 19, no problems! thats good!

 

[dom99]

TRIXX would be perfect if it supported voltage modding.

I just hope my card lasts untill this Christmas lol where I plan to go Nvidia with 28nm

 

[wmblalock]

TRIXX would be perfect if it supported voltage modding.

I just hope my card lasts untill this Christmas lol where I plan to go Nvidia with 28nm

There is a big bug in Trixx that keeps it from being perfect. Voltage control should be added soon from what W1zzard says, but the big bug is with power control. With the current Trixx, each time you restart your computer, or change your core Mhz in Trixx, it puts power control back at 0% no matter what the slider may say. You must then close Trixx, Open CCC, set power control to something other than +20%, click apply, then move the slider back to +20% and click apply again. If you don't do this, and your highly overclocked, your card will throttle the gpu speed down. You can use the sensors tab in GPUz to see when the card is being idled down, test using furmark or Kombustor. W1zzard is aware of this bug, so hopefully he can find a solution for it in the next Trixx release. Then Trixx will be perfect

 

[dom99]

There is a big bug in Trixx that keeps it from being perfect. Voltage control should be added soon from what W1zzard says, but the big bug is with power control. With the current Trixx, each time you restart your computer, or change your core Mhz in Trixx, it puts power control back at 0% no matter what the slider may say. You must then close Trixx, Open CCC, set power control to something other than +20%, click apply, then move the slider back to +20% and click apply again. If you don't do this, and your highly overclocked, your card will throttle the gpu speed down. You can use the sensors tab in GPUz to see when the card is being idled down, test using furmark or Kombustor. W1zzard is aware of this bug, so hopefully he can find a solution for it in the next Trixx release. Then Trixx will be perfect

Ah right I shall keep checking on here for a TRIXX update. I just tried changing the power control bar from +20% to +18% meaning to change it back, then the bar disappeared just like the core and memory bars have! strange eh

 

[wmblalock]

Ah right I shall keep checking on here for a TRIXX update. I just tried changing the power control bar from +20% to +18% meaning to change it back, then the bar disappeared just like the core and memory bars have! strange eh

Yeah, reboot and it should come back. I've had it do that before. :shadedshu

 

[siqueirah]

Hey guys,
I've just bought an Asus HD6950. Do you have any tips for me ?

 

[Mark22]

Hey guys,
I've just bought an Asus HD6950. Do you have any tips for me ?

I have the same, I would suggest using the shader unlocked asus 6950 bios I have attached. I then overclock to 880 core and 1300 memory for gaming. Mine runs fine at this speed with no extra voltage. I would use msi afterburner or Trixx to set your fan speed to increase with temperature up to say 50% over 80c.

Remember to monitor temps when overclocking etc.

 

[Kiwi7Kid]

flashing 6950

Hey is around 50-65 c good underload with the flashed 6950?

 

[MasterVampire]

Ok so I unlocked my Sapphire 6950 to a 6970 no problems and did the 20% thing.

Im looking at my temps in GPUz and its reading:

GPU TEMP – 62 degress
FAN SPEED – 30 %

is that a bit hot for when its just on idle?

I only have just the 1 monitor.

 

[DJManiac]

Hey is around 50-65 c good underload with the flashed 6950?

Of course! I keep mine under 80°C all the time and this seams to important as I figured out from my card...

50-65°C are cold holidays for your card...

 

[DJManiac]

Ok so I unlocked my Sapphire 6950 to a 6970 no problems and did the 20% thing.

Im looking at my temps in GPUz and its reading:

GPU TEMP – 62 degress
FAN SPEED – 30 %

is that a bit hot for when its just on idle?

I only have just the 1 monitor.

I think that your card did not clock down to 2D mode! Look at the clocks! They have to be at 250/150 in Idle/2D mode!

 

[DJManiac]

Hey guys,
I've just bought an Asus HD6950. Do you have any tips for me ?

My tip is: Take the time and read the whole thread! The are so many infos in so many post....

If you ask for tips everone will say something different...

 

[dom99]

My tip is: Take the time and read the whole thread! The are so many infos in so many post....

If you ask for tips everone will say something different...

Yes good advice everything that is worth saying has been posted here, ive followed it from the beginning (first post lol) but I wouldnt want to read all 60 odd pages again

 

[MasterVampire]

I think that your card did not clock down to 2D mode! Look at the clocks! They have to be at 250/150 in Idle/2D mode!

I just checked GPUZ again and at the moment GPU Core Clock is at 250 and GPU Memory Clock is at 150 so it did lock to 2d mode?
(im a noob)

 

[itsdanny]

Yes good advice everything that is worth saying has been posted here, ive followed it from the beginning (first post lol) but I wouldnt want to read all 60 odd pages again

Funny saying, cause I re-read it all over 4 times so far. Although, I'm going to stop lurking now for awhile. Cya.

 

[dom99]

Ive already posted this in another thread but thought I would stick it in here too. Powercolor hd 6950 PCS+ is being released with a pre-loaded bios of 6970 specs, interesting they must have had the go-ahead from AMD to do so;

Link: http://www.hexus.net/content/item.php?item=28578

 

[Kiwi7Kid]

flashing 6950

What does it mean if the gpu clock an mem clock stay at 880 and 1375?

 

[itsdanny]

What does it mean if the gpu clock an mem clock stay at 880 and 1375?

Constantly? Then that means it isn't throttling and lets say you've either set CCC's Power Control at 20% or using a 3rd-party app that is causing that.