• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

ATI 6950 Unlocked to 6970 Texture fill rate?

Hady

Hady

Hady

Associate
Joined
14 Dec 2009
Posts
75
Hey guys, I have unlocked my 6950 using the ATI 6970 Bios but I am only achieving a texture fill rate of



Uploaded with ImageShack.us

I thought this is supposed to be 84.5 GTexel/s

Any ideas? :(

*edit* Also just noticed my pixel fillrate is 25.6 GPixel/s instead of 28.2 GPixel/s
 
Last edited:
You're best using a 6950 bios with the unlocked pipes instead of a 6970 bios, you could possibly damage your card doing so. The reason your fillrate is down is because of the GPU clockspeed. If it was at 880Mhz, you'd have a 84.5 Giga Texel fillrate.

If you divide 76.8 by 800, you get 0.096, multiply that by 880 and you'll get 84.5, just to show you where the gigatexel number is taken from.
 
Try running your core at 880Mhz rather than 800Mhz lol. I just ran mine at your clocks and I get the exact same as you.

Also running at 880Mhz core and 1375Mhz memory gave me your desired clocks. So up your overclock to 880Mhz instead of 800Mhz and you're sorted.

Edit: kylew beat me to it. :)
 
Last edited:
God I love you guys :), If im getting graphical anomalies at this clock speed should I lower a bit or return the card?
 
By the way, I wouldn't advise running the 6970 BIOS for long as it's not good for the memory on the 6950. The 6970 card has different memory timing and modules. This can damage the card so I'd suggest doing this http://forums.overclockers.co.uk/showpost.php?p=18389365&postcount=906

This will unlock the shaders only and leave you with your 6950 timings. Your voltage will go from 1.175v (6970 BIOS) down to 1.100v (6950 BIOS). This will limit you to about 880-900Mhz on the core. Raising it with RBE or MSI Afterburner to 1.175v and you should hit between 940-975Mhz core.
 
It wouldn't be proper grounds for returning the card, however it could simply be the voltage isn't high enough for the clockspeed, I don't know for sure though as I don't have a 6950, J.D will be able to help you much better there.
 
What is the deal with this unlock? Once you unlock and clock to 6970 speeds is the performance identical to that of the 6970?
 
[TW]Fox;18393924 said:
What is the deal with this unlock? Once you unlock and clock to 6970 speeds is the performance identical to that of the 6970?
Click to expand...

The only difference between them really is the GPU clockspeed, and lock shaders, so the performance on an unlocked 6950 is identical when clocked to 6970 speeds and unlocked shaders. :)
 
J.D said:
Try running your core at 880Mhz rather than 800Mhz lol. I just ran mine at your clocks and I get the exact same as you.

Also running at 880Mhz core and 1375Mhz memory gave me your desired clocks. So up your overclock to 880Mhz instead of 800Mhz and you're sorted.

Edit: kylew beat me to it. :)
Click to expand...

Oh dear just tried doing this and corrupted my bios 1, using bios 2 now, Going to try and restore bios 1 >.<
 
Hady said:
God I love you guys :), If im getting graphical anomalies at this clock speed should I lower a bit or return the card?
Click to expand...

I was getting these anomalies so changed back to the 6950 BIOS, unlocked my shaders, raised voltages back to 6970 default of 1.175v in Radeon BIOS Editor and stayed at the same overclock that I achieved with the 6970 BIOS and keeping performance :).

If I were you I'd get the card off the 6970 BIOS and just unlock it.

[TW]Fox;18393924 said:
What is the deal with this unlock? Once you unlock and clock to 6970 speeds is the performance identical to that of the 6970?
Click to expand...

I think it's near to identical. I'm talking about a third of one FPS in difference for the memory timings difference. 1st link is a real 6970 @ 920/1375 and the other two are mine at 950/1375 and 975/1500.

http://forums.overclockers.co.uk/showpost.php?p=18094881&postcount=326

http://forums.overclockers.co.uk/showpost.php?p=18170880&postcount=404

http://forums.overclockers.co.uk/showpost.php?p=18283372&postcount=467
 
Last edited:
Hady said:
No just switching blue screened while trying to flash my modified backup of my 6950 bios
Click to expand...

That is really unlucky timing for a BSOD to happen :(. I've not had to recover before but I've heard you can do it blind if you know the right timing and exactly what to press in DOS. Otherwise I've seen others so it with a second card plugged in to do it on his 5850 and all was fine again after the flash was able to run.

What is more gutting about this is that the flash is over quickly so for it to BSOD in that time just sucks tbh.

Best to stick with the 6950 BIOS unlocked btw. I had screen tears and anomalies happen on the 6970 BIOS as have many others. It was increasing on Pro Evolution 2011 in a ten minute game and I thought to myself "stuff this" and changed back to the 6950 BIOS and all has been perfect since then. So it was the memory timings as the core is fine at the same speeds as I had it on the 6970 BIOS. Just the memory problem but it's just as fast as the 6970 and actually can run 880-900Mhz on the core at 1.100v compared to 880Mhz stock at 1.175v for the 6970 so that's pretty cool. As soon as you add the voltage up to the stock 6970 of 1.175v you can clock up to roughly 940-975Mhz on the core.

I hope you can flash it back soon.

EDIT: Woot you're back :D, good job. How did you do it?.
 
[TW]Fox;18394152 said:
How many 6950's manage 6970 clocks?
Click to expand...

All of them so far. If you read above you will see that at 1.100v (6950 stock voltage) that I can clock up to 890Mhz stable which is running at less voltage than the 6970 and 10Mhz higher with fully unlocked shaders. When I put the voltage to 1.175v (Stock 6970 voltage) I can hit 975Mhz.

I run 975/1500 for benchmarking @ 6970 stock volts but 950/1450 for gaming as Crysis crashed a few times at 975/1500.

Stock 6950 voltages and I'm hitting 890Mhz on the core. Memory should still hit 1500Mhz as I'm sure the voltage play has nothing to do with the memory.
 
Hmm I modified my original bios using the info in the link you provided and tried to reflash BIOS 1 using the modified.bin in Winflash and it just says this version of the bios is already installed.

Any ideas? >.<
 
J.D said:
That is really unlucky timing for a BSOD to happen :(. I've not had to recover before but I've heard you can do it blind if you know the right timing and exactly what to press in DOS. Otherwise I've seen others so it with a second card plugged in to do it on his 5850 and all was fine again after the flash was able to run.

What is more gutting about this is that the flash is over quickly so for it to BSOD in that time just sucks tbh.

Best to stick with the 6950 BIOS unlocked btw. I had screen tears and anomalies happen on the 6970 BIOS as have many others. It was increasing on Pro Evolution 2011 in a ten minute game and I thought to myself "stuff this" and changed back to the 6950 BIOS and all has been perfect since then. So it was the memory timings as the core is fine at the same speeds as I had it on the 6970 BIOS. Just the memory problem but it's just as fast as the 6970 and actually can run 880-900Mhz on the core at 1.100v compared to 880Mhz stock at 1.175v for the 6970 so that's pretty cool. As soon as you add the voltage up to the stock 6970 of 1.175v you can clock up to roughly 940-975Mhz on the core.

I hope you can flash it back soon.

EDIT: Woot you're back :D, good job. How did you do it?.
Click to expand...

I switched to BIOS 2 and switched back to 1 while PC was still on and reflashed my backed up original bios :)
 
Hady said:
Hmm I modified my original bios using the info in the link you provided and tried to reflash BIOS 1 using the modified.bin in Winflash and it just says this version of the bios is already installed.

Any ideas? >.<
Click to expand...

I do it in Windows using this script. http://www.techpowerup.com/downloads/1920/HD_6950_to_HD_6970_Flashing_Tools.html

Did you copy your backed up original BIOS into the extracted folder "Mod_BIOS_HD_6950" and rename it original.bin? and then double click the run.bat file and use the modded.bin BIOS?. If so, that is exactly what I do but I do it with the script above. I've flashed my card over 15 times easily with this, never had one problem.

Give it a try and see how you get on.

Hady said:
I switched to BIOS 2 and switched back to 1 while PC was still on and reflashed my backed up original bios :)
Click to expand...

Oh cool, I never knew you could do this. Nice one :).
 
You must log in or register to reply here.
Back
Top Bottom