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6950 mod to 6970 - Page 4

post #31 of 36
Quote:
Originally Posted by SPARC_PWR View Post
I bought a MSI reference 6950 from NewEgg last week and it unlocked to a 6970 without any problems.

I also have a Sapphire HD 6950 that I flashed to a 6970 the day I bought it and it has been running at 940/1400 with the default voltage ever since. I've yet to see a negative side affect and that card has been used for hours (4+) a day for months now. Flashing the card may be risky, but I don't think it leads to a premature death or problems.
Like I said the Shader unlock shouldn´t yield any problems theoratically since there are no hardware insimilarities colliding.
Still we don´t know what the long term affects are yet and problems could still occur in time.


Quote:
Originally Posted by CL3P20 View Post
I dont believe the MSI Power edition III is a reference design PCB..and it does indeed allow full unlock
I think you are refering to the MSI R6950 Twin Frozr III ...I will be getting this one.

It has a BIOS switch and no laser cut batches have been reported yet so yes it will unlock.

BTW I will get this one since it is in my oppinion the best of all 6950´s
.)Most efficient and enhanced overclocking cabability
.)Specially optimized Voltage Controller
.)Best cooling whatseover
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post #32 of 36
I have ordered mine and look forward to benching it locked/unlocked.. I am curious to see what kind of torture my soldering iron can incur on 1x of these PCB's

I will be capping the GPU to add 4x additional 12v input capacitors, and adding another 6x inductors for GPUv, as well as hard mods for voltage and OCP. I will be upset if Im not able to reach 1.2ghz as a minimum on DICE..
post #33 of 36
Why flash a full 6970 bios when u can just unlock the shaders and oc it to 6970 speeds and avoid ANY unnecessary risks brought forward by speculation

EDIT: CL3, cant wait to see your results
    
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post #34 of 36
Quote:
Originally Posted by Kung Pow View Post
The full 6970 is extremely risky because of the unequal timings and voltages.Lol you even admit that your flashed card artifacted ergo mailfunctioned due to the flash?
Sigh... If there is one thing that you should strive to not do on a forum like this one it is spread misinformation. You throw out YOUR claim that it is extremely risky, and then cite a source that says the exact opposite. How many 6950's have you unlocked? How many GPU's have you ever unlocked? Clearly very few or you would couch your words in fact rather than fiction.

I admit that I stressed a card past it's limit while it was flashed to a 6970. What you chose to ignore is the word benched. I was stressing the crap out of it. I overvolted the GPU and ran it at 1000/1450 through UNIGINE and 3dmark. What is your point? I have bricked other cards in this manner too.

Quote:
Originally Posted by Kung Pow View Post
I did not say the manufacturers check every single card´s BIOS Log unit to determine if it has been flashed but just because you have been lucky does not mean everybody will?
As a matter of fact you did. You stated your answer as an absolute which explicitly implies 100% of the time. If you had wanted to provide a "caveat emptor" addendum to your statement, you should have done so. The fact remains in the long history of GPU's that I have owned from a Voodoo GPU till current day, I've never had a GPU manufacturer ever perform a BIOS log check and deny a claim.


Quote:
Originally Posted by Kung Pow View Post
Sry but you should gather some information on the flash and unlock first. The 6970 flash provides 1-3% performance gain at most? A 1 GHZ overclock for example ..achieved with almost every 6950 provides at least 35% performance increase? Due to that statement I am beginning to question your knowledge about the card and the BIOS flash.

The shader unlock is fairly less risky since there are no colliding hardware unsimilarities ...the 6970 flash however induces Memory failure due to uneven voltage and timing adjustments.

Clearly man your guessing and throwing out pretty numbers. Most 6950's won't hit 1000/(insert ram clock here) without a volt mod. At stock volts nearly all 6950's (refference model mind you) top out at 950/1425 before tearing occurs.

Lastly, you didn't read what I wrote in it's entirety again. Please before you reply to something I didn't say again, read the post. I claimed that no 6950 will beat a flashed 6970 when both are overclocked. Most people are overclocking the flashed gpu on top of flashing it. Your 6950 at stock volts isn't ever going to beat out the 6970 at the same clock speed as shown again by the same chart you referenced above.

As for the timing difference, has it ever been confirmed that they were ever a different ram module on each PCB? I was always under the impression it was just binning that was determining 6950 or 6970 and then shipped out accordingly. In which case it's no more risk than unlocking a GPU has ever been.
    
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post #35 of 36
Binning can factor the IMC of the GPU's though.. which are affected by the overall latency of the timings used. Same as a CPU IMC.

^^^ This could be why some folks have bad luck with flashing.. their IMC is not as 'strong' or capable of running the same speeds/timings on the same exact memory IC's.
post #36 of 36
+reps to Senator for his diligence.
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