How to enable additional shaders on Radeon HD 6950

[siqueirah]

Oops, I'll probably buy my HD6950 on January 22. Do you think the regular unlockable versions will still be avaible or AMD is gonna launch the new rev before that?

Do you have any information of which manufacturer uses the best memory chips?

 

[Mp0wer]

Thank You so much W1zzard for this wonderful mod...works awesome!!!

XFX 6950 (6970 Bios Mod)
Core:940
Memory:1400
Will try and up these settings soon, but happy with these results so far

 

[voro12]

Thank You so much W1zzard for this wonderful mod...works awesome!!!

http://i298.photobucket.com/albums/mm251/mpower1001/AnimatedSmilies_051.gif

XFX 6950 (6970 Bios Mod)
Core:940
Memory:1400
Will try and up these settings soon, but happy with these results so far http://i298.photobucket.com/albums/mm251/mpower1001/thumbsup.gif

http://gpuz.techpowerup.com/11/01/01/47x.png

http://i298.photobucket.com/albums/mm251/mpower1001/3dmark111.png

Nice. Have you change the voltage? My card is crashing at that speed :/

 

[EzyRyder]

Hello chaps,

Has anyone created a modded HIS 6950 bios with the unlocked shaders? I have just bought one of these but I would prefer to use the unlocked 6950 to a 6970 bios even if I won't be able to overclock it as much.

Also, which are the best drivers to use right now? 10.11, 10.11a, 10.12 or 10.12a?

Thanks

 

[PopcornMachine]

XFX 6950 (6970 Bios Mod)
Core:940
Memory:1400
Will try and up these settings soon, but happy with these results so far http://i298.photobucket.com/albums/mm251/mpower1001/thumbsup.gif

5745 is a very nice score.

The best stable OC I can get is 900/1400. My best score is 5430.

Funny thing is that since reinstalling Catalyst, in order to improve performance, my scores have topped out at around 5250.

 

[daggeronebravo]

I have a Sapphire 6950 and am currently using the modded 6950 BIOS (unlocked shaders) and so far it's running perfectly at 880/1365
The memory on these 6950's simply won't clock that high. Have any of you running 1400MHz or more on the memory tried lower frequencies and comparing the scores on Unigine or 3DMark? I'm getting higher scores till about 1365, after that the framerates seem to decrease instead of increase. The same happened with the 6970 BIOS so the timings or voltages don't seem to matter.

Can somebody point me towards the modified 6950 bios? Also, does a modified 6950 bios result in lower temps than a 6970 bios (at 6970 clocks)? I plan on buying a gibabyte card soon
thanks

 

[mailoc]

Flashing XFX 6950 to 6970 causes crashing

I have 2 XFX 6950 in crossfire mode. I flashed the primary adapter to 6970 but on restart the computer eventually crashes in windows with graphic artifacts. I have turned down the clocks to prevent any over heating but it still crashes. Any ideas on why? Should I totally disable crossfire and take out my second card before flashing? Also off topic but when I have crossfire enabled CCC wont show the correct gpu and memory frequency for the linked adapter in ati overdrive, any ideas why?

 

[Wijkert]

Can somebody point me towards the modified 6950 bios?

On earlier pages in this topic you can find the links to them. All have been modded by rui0317.

Also, does a modified 6950 bios result in lower temps than a 6970 bios (at 6970 clocks)? I plan on buying a gibabyte card soon
thanks

Yes it results in lower temps, because the 6970 bios has a max voltage of 1.175 en the 6950 bios a max voltage of 1.1. Higher voltage = higher temps.

 

[bystander]

My issue with my clocks getting stuck at 500/1375 seems to have been resolved by taking my PCIe voltage settings in the bios, and putting it at 1.2v rather than on auto, which allowed the voltage to go up and down with powerplay. I have a Gigabyte GA-X58A-UD3R motherboard.

I'll keep tabs on it for a while longer.

Edit: the problem persists. The change to the slot voltage helped it take longer to have a problem, but it still craps out about 30-60 seconds after I log out of a game, every time and will not restore when I game after. It's not even using the normal idle clocks, it's something in between.

 

[VinnieM]

Can somebody point me towards the modified 6950 bios? Also, does a modified 6950 bios result in lower temps than a 6970 bios (at 6970 clocks)? I plan on buying a gibabyte card soon
thanks

Look in post #349: How to enable additional shaders on Radeon HD 695...

This BIOS leaves the voltage at 1.1 so your card stays considerably cooler.

By the way, I did some additional testing and it seems my card can take higher memory clocks after all
I tested up to 1520MHz, but that crashed after 2 minutes Unigine. 1480 seemed fine, but crashed while gaming so I'm now down to 1450, which is still a lot better than 1365

 

[GSG-9]

PowerColor 23 21 1 0

Did two cards fail? What was the result of card 23?

Do you (anyone) think the few failures listed are related to power?

Thanks for maintaining the list W1zz (and for everything else).

 

[chistiansen]

A question for those who have : 6950 /// 6970
How silent is with unit closed in idle , compare with any fan ... Anything else ?

 

[dom99]

Hi,

So when I finally get round to doing this next week, I am going to use the 6950 shader unlocked version, then up the volts to 1.175V then overclock to stock 6970 speeds.

But what is recommended for changing the voltage on these cards and what are they supported by?

Thanks

 

[daggeronebravo]

Look in post #349: How to enable additional shaders on Radeon HD 695...

This BIOS leaves the voltage at 1.1 so your card stays considerably cooler.

By the way, I did some additional testing and it seems my card can take higher memory clocks after all
I tested up to 1520MHz, but that crashed after 2 minutes Unigine. 1480 seemed fine, but crashed while gaming so I'm now down to 1450, which is still a lot better than 1365

So i just flash that bios the same way i would the 6970's?

 

[bbmarley]

6950 arrives wednesday be nice to give this a go

 

[daggeronebravo]

You can try this scripts:
www.techpowerup.com/wizzard/Mod_BIOS_HD_6950.zip

Noob question, how do i work this? Do i just run the batch file as admin with a untouched bios in a certain directory?

 

[niemion]

Noob question, how do i work this? Do i just run the batch file as admin with a untouched bios in a certain directory?

Yes, run as admin. The Sapphire 6970 BIOS is included in the zip file. And the default Sapphire 6950 BIOS if you decide to switch back. You really don't have to do much except run the batch.

 

[daggeronebravo]

Yes, run as admin. The Sapphire 6970 BIOS is included in the zip file. And the default Sapphire 6950 BIOS if you decide to switch back. You really don't have to do much except run the batch.

I thought it was just a 6950 bios with the shaders unlocked not a 6970

 

[niemion]

I thought it was just a 6950 bios with the shaders unlocked not a 6970

Sorry, I thought you were asking about this: http://www.techpowerup.com/downloads/1920/HD_6950_to_HD_6970_Flashing_Tools.html

The script you're linking to does take any 6950 BIOS and unlocks the shaders and nothing else. As I understand it. You just put your original 6950 BIOS in the same folder as the batch file. Name it original.bin and run the batch.

 

[Mp0wer]

Nice. Have you change the voltage? My card is crashing at that speed :/

Nope didn't change the voltage

 

[Waddler]

Ok so now oc'd my CPU to 4g and hit 9500 in 3d Mark 11 p score....

 

[dimon222]

Help, i can't flash a modded 6950 rom.
After saying "atiwinflash -unlockrom 0" i see this

Then if i flash a new rom, i see the process of flashing. But after ending i have no changes. GPU-Z shows the same 1408 shaders. Reboot doesn't help.
If i flash with gui, i get "Could not erase rom"

HIS Radeon 6950 (with sword on title)

Update: I Tried to flash in recovery bios lol . Fixed

 

[bounz]

I had some wierd stuff going on.

I had the Sapphire HD6950 flashed to HD6970 ( two days ago ) and immedatly my temps went to 60° in Idle but otherwis no problems. untill today.
pc wouldn't start, my graphics card couldn't be recognized anymore, Catalyst couldn't be installed anymore, gave blue screens every time. lukily I could reflash it back ( the only thing that worked hih ) , but with switch on 2 or 1 it didn't work. in short. terrble things, and I made immediatly the conclusion. my card is dying/dead.
my motherboard is a M2N32 Sli

I put my old nvidia 8600 in and it works perfect.
than i realised I also have a HD4870 in my previous game pc.
I installed it to see if the drivers install with this card. and it does.


So i thought. it's certainly my card.
but now i put my HD6950 in my other pc ( MSI P35 Platinum silentpipe )
and behold.... i can install the CCC drivers, and it runs cooler two.
Now i connected a second screen onto it, and temps going immediatly to 54°
but better than in my Asus pc..

I don't know what the problem is, I'm just glad it works again and at a little lower temp. however in my second pc, going to try it back in my other later one

 

[kalviper]

I had some wierd stuff going on.

I had the Sapphire HD6950 flashed to HD6970 ( two days ago ) and immedatly my temps went to 60° in Idle but otherwis no problems. untill today.
pc wouldn't start, my graphics card couldn't be recognized anymore, Catalyst couldn't be installed anymore, gave blue screens every time. lukily I could reflash it back ( the only thing that worked hih ) , but with switch on 2 or 1 it didn't work. in short. terrble things, and I made immediatly the conclusion. my card is dying/dead.
my motherboard is a M2N32 Sli

I put my old nvidia 8600 in and it works perfect.
than i realised I also have a HD4870 in my previous game pc.
I installed it to see if the drivers install with this card. and it does.


So i thought. it's certainly my card.
but now i put my HD6950 in my other pc ( MSI P35 Platinum silentpipe )
and behold.... i can install the CCC drivers, and it runs cooler two.
Now i connected a second screen onto it, and temps going immediatly to 54°
but better than in my Asus pc..

I don't know what the problem is, I'm just glad it works again and at a little lower temp. however in my second pc, going to try it back in my other later one

can check what psu is the 2 pc using? are there pure 6 pin? or 2 + 6 pin

 

[xocr]

Worked excellent with my Power Colour 6950~

i used your batch file:
http://www.techpowerup.com/downloads/1920/HD_6950_to_HD_6970_Flashing_Tools.html


100 % Stable Power Control Settings +12 %

gute arbeit w1zzard