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Flashing 6950 to 6970 any success story?

post #1 of 17
Thread Starter 
!! EDIT: Apparently one lucky sod at guru3d have reported success. See post #7. !!

Any daredevils done the deed? My observation points to me that the chance of it succeeding is far higher than other recent cards. I mean you have..

1. 99% exact same pcb. 6970 has a higher rated ram and additional 2 pins. 6950 pcb has some extra soldered resistors.
6970
http://www.xbitlabs.com/picture/?src=/images/video/radeon-hd6970-hd6950/30_697_pcbpw_big.jpg
6950
http://www.xbitlabs.com/picture/?src=/images/video/radeon-hd6970-hd6950/29_695_pcbpw_big.jpg

2. AMD is even "kind" enough to provide 2 bios! One read only..totally recoverable.

3. Stories of 6970's yields are higher than expected and AMD had to reallocate more chips as 6970.

Without the extra 2 pins of power and lower rated ram, what are we looking at? Probably lower clocks, but if 6950 can unlock the 2 SIMD, even at 800mhz, i think it is good!
Edited by dansi - 12/26/10 at 8:25am
    
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post #2 of 17
No because these are probably laser cut, and the 6950 only has 6+6 where as the 6970 has 6+8 so it would be unstable anyway. The dual bios feature is most likely for those who flash their cards to enable higher voltage limits, or for hardcore overclockers. It's worth a try at your own risk, but you may even kill it and maybe the second bios can "bring it back" and maybe not?? tongue.gif
They do use the same PCB, but if you notice, the GTX 570 and 580 also have the same PCB with solder pads for an 8pin but it only uses a second 6pin wink.gif
    
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post #3 of 17
I have been wondering if this would work myself..
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post #4 of 17
Doubtful, they are usually laser cut to make unlocking impossible ever since the 6200 to 6800 unlock.
SBD:
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SBD:
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post #5 of 17
Thread Starter 
Bios of 6970 is out
http://www.xtremesystems.org/forums/showpost.php?p=4680835&postcount=9

Now we need a brave soul or at least some one with good store cred to exchange a failed-flashed 6950 discreetly, but then we have the dual bios, so i guess only a brave soul is needed
    
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post #6 of 17
99% of failed BIOS flashs can be recovered by using second PCIE or old scool PCI graphic card to boot with into DOS and reflash te bricked card..

I have done it myself with my old trusty GF8500GT in first PCIE x16 lot when I recovered my HD4850 which I had bricked using Winflash (stupid and lazy move I know) for BIOS flash..

Now if that dual BIOS thing really works it makes BIOS flashing even more attractive..

CHEERS..
Edited by KingT - 12/26/10 at 8:14am
     
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post #7 of 17
Thread Starter 
first success story, and it begins.....grab yea first batch of 6950 while you can!
http://forums.guru3d.com/showthread.php?t=335318
    
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post #8 of 17
post #9 of 17
one works for me, the other artifacts in windows, both powercolor brand.
still see some glitches with the unlocked one, played some bc2 to check and as far i can tell, works fine.
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post #10 of 17
Quote:
Originally Posted by flopper;11784965 
one works for me, the other artifacts in windows, both powercolor brand.
still see some glitches with the unlocked one, played some bc2 to check and as far i can tell, works fine.

So... If you sent the "broken" 6950 back and replaced it with another one that might unlock?
    
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