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HD 6950 810/1250 MHz, Shader Unlock, 1.175V GPU, 1620/2500 CCC Limits - Page 7

post #61 of 84
Quote:
Originally Posted by Xtreme21;14147470 
First post so apologies in advamnce if the question has been answered. Is this a way to disable or get around the OC limits with out modifing the BIOS on your card?

This is the simplest way to override overclock limits, period. You don't want to override oc limits in bios, btw.
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post #62 of 84
Quote:
Originally Posted by FlyingRich;14135477 
Bricked MSI 6950 TF II frown.gif
1) Download atiflash (for DOS).
2) Boot into DOS.
3) atiflash -f -p 1 goodbios.rom (assuming that atiflash recognize the bricked card as adapter #1 and the good card as adapter #0).
post #63 of 84
Quote:
Originally Posted by VigVoodoo;12120681 
Step by step guide to an HD 6950 with:

810 MHz Factory GPU Overclock at stock HD 6970 voltage ( 1.100V + 0.075V )
1250 MHz DDR at stock HD 6950 voltage and timings
1620 MHz GPU Catalyst Control Center Overdrive limits
2500 MHz DDR Catalyst Control Center Overdrive limits
1536 unified shaders

Do not use or type the quotation marks

1. With your computer off make sure the bios switch is set to the "1" position, the position furthest from the CrossFireX bridge connections

2. Download this file, right-click it and select "Extract All..." to "C:\" or to wherever your Windows root directory is

3. If you have CrossFireX, disable it now

4. Click the Windows Start Menu button

5. Type "cmd" and press CTRL+Shift+Enter

6. A black window will appear, this is the Windows command prompt

7. Type "cd \hd6950flash" in the command prompt and press Enter

8. Type "atiwinflash -unlockrom 0" in the command prompt and press Enter

9. A progress bar will appear and disappear

10. Type "atiwinflash -f -p 0 bios.bin" in the command prompt and press Enter

11. A progress bar will appear and disappear

12. A window verifying the bios flash will appear, click "OK"

13. A window asking to reboot will appear
13a. If you have an HD 6950 CrossFireX setup click "No" and continue to step 14
13b. If you have a single HD 6950 click "Yes" and continue to step 20


14. Type "atiwinflash -unlockrom 1" in the command prompt and press Enter

15. A progress bar will appear and disappear

16. Type "atiwinflash -f -p 1 bios.bin" in the command prompt and press Enter

17. A progress bar will appear and disappear

18. A window verifying the bios flash will appear, click "OK"

19. A window asking to reboot will appear, click "Yes"

20. After the computer reboots you might see a window saying you need to install video card drivers, reboot again

21. Open the "C:\hd6950flash\SmartDoc674" folder

22. Launch the "setup" application to install Asus SmartDoctor, follow the on screen instructions

23. After the computer reboots, launch Asus SmartDoctor

24. Under Asus SmartDoctor's settings, check the "Overclocking range enhancement" option

25. Click "OK"

26. Exit Asus SmartDoctor

27. Uninstall Asus SmartDoctor

28. Launch Catalyst Control Center

You should now have a default GPU clock of 810 MHz and a default Memory clock of 1250 MHz. Your OverDrive limits should now be 1620 for the GPU and 2500 for the Memory. Your GPU voltage will now be 1.175V, the memory should stay at the HD 6950 factory voltage/timing defaults. You don't need any software other than Catalyst Control Center to overclock now.

I like to set my OverDrive to 880 GPU, 1250 Memory, and 12% Power Control.



Can you help me, please ?biggrin.gif

I have a SAPHIRE 6950 2G, and when I do the STEP
"atiwinflash -f -p 0 bios.bin"
a progress bar appear and...
A window verifying the bios flash will appear, click "OK" << THIS NOT APPEAR
confused.gifconfused.gifconfused.gif
I rebooted and nothing unusual happens....smile.gifsmile.gif
But I wish to do the shader unlock...frown.gif
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post #64 of 84
Quote:
Originally Posted by TrueKalak;14157272 
I have a SAPHIRE 6950 2G
Is it a reference or non-reference model?
post #65 of 84
Quote:
Originally Posted by smp;14157351 
Is it a reference or non-reference model?

Don´t Know:confused:
GPUz details:
g7h.png
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post #66 of 84
You should know this kind of stuff before trying to mess around with the bios. If you have a non-reference card you're lucky that you failed to flash your card with the bios provided by the original poster, otherwise you would have bricked your card.

Reference:
21188-00_HD6950_2GBGDDR5_2miniDP_HDMI_2DVI_PCIE_C02_634414111179236537_600_600.JPG

Non-reference
11188-00_HD6950_2GBGDDR5_DP_2miniDP_HDMI_2DVI_PCIE_C02_634414120852019566_600_600.jpg
post #67 of 84
Quote:
Originally Posted by smp;14166579 
You should know this kind of stuff before trying to mess around with the bios. If you have a non-reference card you're lucky that you failed to flash your card with the bios provided by the original poster, otherwise you would have bricked your card.

Thanks for your help. Mine is a non reference.frown.gif
So... I can´t "do the trick"? biggrin.gif
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post #68 of 84
Quote:
Originally Posted by TrueKalak;14167219 
I can´t "do the trick"? biggrin.gif
You can try. But you should keep in mind that some non-reference cards can't be unlocked.
1) Save your original bios with GPU-z. Make a backup copy of the bios file just in case.
2) Patch that bios with this shader unlock script - http://www.techpowerup.com/wizzard/Mod_BIOS_HD_6950.zip
3) Flash the patched bios. Some non-reference cards go with the bios that does not allow flashing. In that case - http://forums.overclockers.com.au/showpost.php?p=13337894&postcount=220
4) Check the shader count with GPU-z.
post #69 of 84
I used this and it worked for unlocking the shaders but my voltage max is still 1.10v. Don't know why
    
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post #70 of 84
Almost everything worked great. I originally only had my original 6950 edited bios to unlock the shaders, but wanted to do this mod for the extra volts, and of course the increased limits.
Both cards (I'm running crossfireX) flashed perfectly with this mod, gpu-z shows unlocked shaders and a higher voltage under load.
In ccc though, only card #0 has the increased limits??? Read somewhere to disable ULPS with regedit. I edited 8 values, 2 from each 0000,0001,0002,0003, then restarted and still nothing on second card.
Any idea?
What am I missing? What can I try to get the limit increase on the second card?
Edited by Phantom NZXT - 9/10/11 at 7:31am
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