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Turn your Radeon 6950 into a Radeon 6970

Category : Video Cards
Manufacturer : AMD

Posted by: Ian Jackson on 2011-03-26

How to flash your HD 6950 with a 6970 BIOS

Manufacturer: http://www.amd.com   
Price: ~£179inc VAT
Best Price: http://pricebomb.co.uk

It has been a long time since we were able to turn one video card into another using just a BIOS flash, but with the Radeon HD 6950 you can do just that, providing you have a model that follows the reference design. Most reference cards look like the card below and have an identical PCB and cooler to the Radeon HD 6970.


In this guide we will be providing a visual step by step guide on how to perform the modification. Before we start, you will need the following files and programs;

TechPowerUp's excellent GPU-Z version 5.2

ATi Winflash

The BIOS file from a Sapphire Radeon HD6970

First, check your card with GPU-Z. It should show your Radeon 6950 as an “AMD Radeon HD 6900 Series” with 1408 Unified Shaders and GPU and Memory clocks of 800 MHz and 1250 MHz respectively. If your GPU-Z screen resembles the screen shot below, you are ready to proceed. Although we are using a Sapphire BIOS file, this mod should work on any reference card, regardless of manufacturer.


Next, unpack the Winflash application into a folder. We recommend you unpack it to a folder called “winflash” in the C: root directory. This is because it is easier to navigate to from the command prompt should you need to. Do not just run the application from within the zipped folder!


Run Winflash and click on the save button. Choose a memorable location and backup your card’s original BIOS. We make a backup of this BIOS file just in case the flash doesn’t take successfully and we need to restore the card back to its factory state.


Now we will perform the programming step. Click on load image and navigate to wherever you saved the Sapphire Radeon HD6870 BIOS. Once you have done this it will appear in the filename field. Cross your fingers and hit the program button. This will proceed to overwrite your card’s BIOS with the Sapphire HD 6870 variant.


Once the system has flashed, reboot your system and allow the new card to be successfully detected by the drivers. This may result in the need to reboot again. Once complete, fire up GPU-Z again and check the shader count. If the flash has taken successfully, the shaders will read 1536 and the GPU and Memory clocks will show 880 MHz and 1375 MHz respectively.


Next: Advanced flashing and restoring >>

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