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risk of flashing 6950 to 6970

post #1 of 13
Thread Starter 
What's the risk of flashing it fully to a 6970 and if something happens will sapphire replace em? Is shader unlock only better? However can I still get same oc and everything. What are pros cons of either or both ? Thanks
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post #2 of 13
From what I understand you can just flash them back if anything goes wrong. And yes the shader unlock alone will help, but you can easily OC the card to 6970 values and be rock solid stable, they're the same card.
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post #3 of 13
Thread Starter 
So now I'm at 950/1450 at 1.75volt if I just do shader unlock I can do it also? And I meant any permanent problems like frying the RAM or something that BIOS flash won't fix
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post #4 of 13
What I don't get is

The 6970 uses 6 and 8 pin power

the 6950 uses 2 6 pins

So if people are unlocking with the 6970 BIOS, and supposedly unlocking the other shaders, so that the card really is a 6970...

when will they run into power related problems???

and when they are unlocked, does the VRAM speed up to 6970 levels?
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post #5 of 13
Quote:
Originally Posted by Mit Namso;12628607 
What I don't get is

The 6970 uses 6 and 8 pin power

the 6950 uses 2 6 pins

So if people are unlocking with the 6970 BIOS, and supposedly unlocking the other shaders, so that the card really is a 6970...

when will they run into power related problems???

and when they are unlocked, does the VRAM speed up to 6970 levels?

No power problems. An 8 pin is not really needed, I think they added it just so people would actually buy a 6970 instead of a 6950.

A bios contains core and memory frequencies. By flashing a 6970 bios to a 6950, you will effectively increase the RAM and core frequencies to 6970 level. Oh, and there is 0 risk of flashing it. Since there is a bios switch, if you flash it and it doesn't work, just flip the bios switch and you're back to running 100%. Even if it didn't have the bios switch, it's easy to flash a GPU bios on a bricked card, as long as you have another GPU (whether discrete or onboard) to do so from.

Advantages of flashing it include faster performance, and better value for the money.

There are essentially no disadvantages, because if it doesn't work you just flip the bios switch.
Edited by Dopamin3 - 3/5/11 at 11:36pm
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post #6 of 13
Quote:
Originally Posted by Mit Namso;12628607 
What I don't get is

The 6970 uses 6 and 8 pin power

the 6950 uses 2 6 pins

So if people are unlocking with the 6970 BIOS, and supposedly unlocking the other shaders, so that the card really is a 6970...

when will they run into power related problems???

and when they are unlocked, does the VRAM speed up to 6970 levels?

the extra 2 pins on a 8 pin connector are ground so there's no difference really just makes it "safer"
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post #7 of 13
Quote:
Originally Posted by Drakenxile;12628669 
the extra 2 pins on a 8 pin connector are ground so there's no difference really just makes it "safer"

A 6 pin PCI-E power cable supplies up to 75W, but 8 pin PCI-E connectors can supply 150W. Right? I think this is true but I'm not 100% certain.
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post #8 of 13
Quote:
Originally Posted by Dopamin3;12628927 
A 6 pin PCI-E power cable supplies up to 75W, but 8 pin PCI-E connectors can supply 150W. Right? I think this is true but I'm not 100% certain.

IIRC the 2 extra PCIE power pins are ground.......idk about the power being supplied though


edit:
Quote:
The PCI Express 2.0 specification released in January 2007 added an 8 pin PCI Express power cable. It's just an 8 pin version of the 6 Pin PCI Express power cable. Both are primarily used to provide supplemental power to video cards. The older 6 pin version officially provides a maximum of 75 watts (although unofficially it can usually provide much more) whereas the new 8 pin version provides a maximum of 150 watts.

source: http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress8

idk about the 2 extra pins being grounds then
post #9 of 13
Thread Starter 
Ok, so there isnt much of a risk of causing any damage to the card once it is fully unlocked to a 6970? It has been flashed and is working good, but down the road I wont have issues? And if i do have issues will sapphire replace it as long as i dont tell em i unlocked it?
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post #10 of 13
Thread Starter 
"Looking at the benchmarks, it's clear that the 6950 Unlocked Shader OC yields the same results as the 6970 Bios. The 6950 Unlocked Shader OC resulted in a 11% increase over stock in F1 2010 and Alien vs Predator. Since there has been reports of 6950 failures due to VRAM corruption, the 6950 Unlocked Shader Bios maybe a better solution. In no way using the Shader Bios is a guarantee that the card won't sustain damage, but I think it's less likely since the VRAM is still operating with spec i.e timings and voltage. When using the 6970 Bios I did experience GSOD when looping the Heaven benchmark more than once, also F1 2010 would freeze after long gameplay. I haven't experienced any issues when using the 6950 Unlocked Shader Bios.
"
got this info from here. http://www.overclock.net/ati/909086-6950-shaders-unlocked-vs-full-unlocked.html
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