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6950 to 6970 overclocked?

post #1 of 5
Thread Starter 
I have 2 2GB XFX 6950's and I was wondering first how do I flash it to a 6970, or unlock the shaders, and second, if I where to flash it to a 6970, would I be able to overclock it?
Supra
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Intel Core i7-2600K 4.0GHz @ 1.160V MSI P67A-GD65 (B3) XFX Radeon HD 6950 2GB Unlocked @ 950/1450 XFX Radeon HD 6950 2GB Unlocked @ 950/1450 
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Supra
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Intel Core i7-2600K 4.0GHz @ 1.160V MSI P67A-GD65 (B3) XFX Radeon HD 6950 2GB Unlocked @ 950/1450 XFX Radeon HD 6950 2GB Unlocked @ 950/1450 
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post #2 of 5
Here's a guide to get you started.
Rosemari
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Rosemari
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post #3 of 5
Quote:
Originally Posted by Intresting Enough View Post
second, if I where to flash it to a 6970, would I be able to overclock it?
You could like a normal Graphics card, but you would have to watch your temperatures. 90c degrees is a no go.
My Computer
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i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
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MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
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My Computer
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i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by Pencuri View Post
You could like a normal Graphics card, but you would have to watch your temperatures. 90c degrees is a no go.
Thanks, glad to know, I plan on water cooling them later on in the year but last night I was playing around with fan speeds and turns out that 100% fan speed sounds like a FREAKIN JET ENGINE POWERING UP!!!
its insane, I dont think temps will be a problem.
Supra
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Intel Core i7-2600K 4.0GHz @ 1.160V MSI P67A-GD65 (B3) XFX Radeon HD 6950 2GB Unlocked @ 950/1450 XFX Radeon HD 6950 2GB Unlocked @ 950/1450 
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Mushkin Enhanced Silverline 8GB (2 x 4GB) Corsair Nova SSD 32GB 1TB Seagate 6.0GB/s SATA 1TB Seagate 6.0GB/s SATA 
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Supra
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Intel Core i7-2600K 4.0GHz @ 1.160V MSI P67A-GD65 (B3) XFX Radeon HD 6950 2GB Unlocked @ 950/1450 XFX Radeon HD 6950 2GB Unlocked @ 950/1450 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Silverline 8GB (2 x 4GB) Corsair Nova SSD 32GB 1TB Seagate 6.0GB/s SATA 1TB Seagate 6.0GB/s SATA 
Optical DriveCoolingOSMonitor
Lite-On DVD Burner Stock Windows 7 Ultimate x64 Acer S231HL LED Monitor 
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post #5 of 5
First off here a little something about the unlock
There are two types of 6950 unlocks:

Type 1 unlock: Shader increase to 1536 units (same as the 6970)
Type 2 unlock: Complete BIOS flash to a 6970

The type 1 unlock is almost risk free and can be achieved with almost all the 6950´s.
The type 2 unlock on the other hand is a bit more risky because due to the full 6970 BIOS flash also the timings of the 6970 and other settings which are different will be applied.
To some cards that ultimately can lead to card failure or mailfunction.
Further marginal differences can be seen here:

But be advised that the Type 2 unlock only yields about 1-3% performance increase.
Wheter the Type 1 unlock + stock 6970 clocks have shown to yield the exact same amount of performance a normal 6970 would achieve
So according to those results one could imply that a Type 1 unlock + stock 6970 settings would upgrade a 6950 to a full 6970 performancewise even though other settings or structural differences are unequal.



Both types of unlocks will void your warranty if something goes wrong so be sure to bare that in mind when doing it.
There have not been any long term studies about the affect of the unlocking process and further causations yet.....but I am confident to say that nobody has encountered any problems yet
So I personally would advise you to leave the unlock be as it is not included in the warranty and just overclock your card 5-10% higher ...thus a higher overclock should be able to not only compensate but even exceed the performance boost the unlock provides
And if you must have an unlocked card at least wait until we know more about its long term affects

I would also like to refer you to my thread in which similar questions and all advantages/features benchmark results,performance comparisons to other cards including all designs etc etc should be displayed and answered

http://www.overclock.net/nvidia/9848...md-6950-a.html

Here the full guide + tips on unlock from TechPowerUp:http://www.techpowerup.com/articles/...ng/vidcard/159
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Now you should be pretty much informed about the unlock.
Here a little bit about the unlockability of the 6950´s out there:


If a card unlocks or not is depending on wheter or not it has been laser cut to make it impossilbe for software to unlock the unfunctional units.

Another crutial part of the unlock is for the card to have a BIOS switch so in case somthing goes wrong you can always flash to the second BIOS.

Basically 90% of the tested Twin Frozr III cards unlocked fine there are already some newer laser cut products around so be careful to check the arrival date of the card at your local retailer before buying it to ensure it couldn´t have been laser cut yet.


Hope I could help
Anything earlier than March 15th should be fine I believe
Project Rapture
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Project Rapture
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