A few of the newest HD7950s are shipping with reference HD7970 PCB designs.
This is a unique situation for the HD7950 because it has improved PCB with higher VRM power output design. These cards have 6+8 pin power connections and 8+8 and are compatible with all reference HD7970 water blocks.
I'm hoping that these cards will all eventually be able to be flashed to full HD7970 performance.
I have done some experimental flashing with my Sapphire HD7950 OC 950mhz edition to HD7970 but haven't had any success yet.
If you have a HD7950 that is using a reference HD7970 PCB please share over clocking abilities and photos.
Here is my card which is totally stable for gaming at 1300/1600 1.22v.
With Swiftech MCW82 7900 gpu block.
HD7950 cards that have used reference HD7970 PCB.
1. VTX3D HD 7950 X-Edition V2 w/ 7970 PC
2. HIS ICEQ X2 Boost
3. MSI TF3
4. Sapphire 950mhz Edition
5. A795 Fire Hurricane
6. SAPPHIRE 100352-4L and Sapphire 21196-00-20G 6+6 power connector with 5+1 phase power design
How to flash HD7970 BIOS to HD7950.
Thanks to Condrutz85 from Xtremesystems.org for figuring this out. Will not unlock shaders but may have some other performance benefits. I just did this myself and it worked for my card.
http://www.xtremesystems.org/forums/showthread.php?284653-I-Finnaly-DiD-IT-MSI-7950-TF3-OC-V2-X-Flashed-with-7970-Bios-!!!&p=5164147&viewfull=1#post5164147
Condrutz85 instructions:
Edited by SonDa5 - 4/10/13 at 2:17am
This is a unique situation for the HD7950 because it has improved PCB with higher VRM power output design. These cards have 6+8 pin power connections and 8+8 and are compatible with all reference HD7970 water blocks.
I'm hoping that these cards will all eventually be able to be flashed to full HD7970 performance.
I have done some experimental flashing with my Sapphire HD7950 OC 950mhz edition to HD7970 but haven't had any success yet.
If you have a HD7950 that is using a reference HD7970 PCB please share over clocking abilities and photos.
Here is my card which is totally stable for gaming at 1300/1600 1.22v.
With Swiftech MCW82 7900 gpu block.
HD7950 cards that have used reference HD7970 PCB.
1. VTX3D HD 7950 X-Edition V2 w/ 7970 PC
2. HIS ICEQ X2 Boost
3. MSI TF3
4. Sapphire 950mhz Edition
5. A795 Fire Hurricane
6. SAPPHIRE 100352-4L and Sapphire 21196-00-20G 6+6 power connector with 5+1 phase power design
How to flash HD7970 BIOS to HD7950.
Thanks to Condrutz85 from Xtremesystems.org for figuring this out. Will not unlock shaders but may have some other performance benefits. I just did this myself and it worked for my card.
http://www.xtremesystems.org/forums/showthread.php?284653-I-Finnaly-DiD-IT-MSI-7950-TF3-OC-V2-X-Flashed-with-7970-Bios-!!!&p=5164147&viewfull=1#post5164147
Condrutz85 instructions:
Quote:
1. Check your Device ID with GPU-Z.
In my case the device id was 1002-679A and the only bios from 7970 that matched my card was from HIS.
2. Now you have to go to the VGA Bios Archive ( http://www.techpowerup.com/vgabios/i...=&memSize=3072 ) and identify a bios that matches YOUR DEVICE ID!!!!!!
Be sure that the bios device id and your device id matches perfectly.
3. Download the bios(es) that matches BUT DO NOT FLASH IT YET!!!Before you go flashing 7970 bios like a maniac, please check that your card can take the matched bios.Check with an overclock software (MSI Afterburner ,Trixx ) that your card support the 7970 bios clock.
4. Make 2 BACKUP BIOSES, 1 with the SWITCH on 1 and SWITCH on 2. Do not forget to put bios switch on the 1st position before flashing. This will become in hand later.
5. Download atiflash latest version and extract it on a bootable stick, along with the bios you want to flash. ( Use hpboot stick and win98 system files, and make sure that atiflash.exe and your bios are on root or in the same folder ).
6. Boot into DOS and write "atiflash -f -p 0 yourbios.rom", where 0 is the number of the card conected on your pci-e.
7. After finishing flashing , restart. If it doesn`t boot follow the recovery procedure (Switch on 2 boot into dos, put switch on 1, flash original bios). If the 7970 bios doesn`t work choose other bios (remember same DEVICE ID).
8. After you boot into windows with 7970 bios, unninstall all drivers and all overclocking GPU utilities, RESTART!!!!! (IF you want to oveclock and change voltage, else would not work).
9. Install the latest Beta Catalyst, RESTART!!!
10. Install the Overcloking utilities.
11. ENJOY and Open a beer!
In my case the device id was 1002-679A and the only bios from 7970 that matched my card was from HIS.
2. Now you have to go to the VGA Bios Archive ( http://www.techpowerup.com/vgabios/i...=&memSize=3072 ) and identify a bios that matches YOUR DEVICE ID!!!!!!
Be sure that the bios device id and your device id matches perfectly.
3. Download the bios(es) that matches BUT DO NOT FLASH IT YET!!!Before you go flashing 7970 bios like a maniac, please check that your card can take the matched bios.Check with an overclock software (MSI Afterburner ,Trixx ) that your card support the 7970 bios clock.
4. Make 2 BACKUP BIOSES, 1 with the SWITCH on 1 and SWITCH on 2. Do not forget to put bios switch on the 1st position before flashing. This will become in hand later.
5. Download atiflash latest version and extract it on a bootable stick, along with the bios you want to flash. ( Use hpboot stick and win98 system files, and make sure that atiflash.exe and your bios are on root or in the same folder ).
6. Boot into DOS and write "atiflash -f -p 0 yourbios.rom", where 0 is the number of the card conected on your pci-e.
7. After finishing flashing , restart. If it doesn`t boot follow the recovery procedure (Switch on 2 boot into dos, put switch on 1, flash original bios). If the 7970 bios doesn`t work choose other bios (remember same DEVICE ID).
8. After you boot into windows with 7970 bios, unninstall all drivers and all overclocking GPU utilities, RESTART!!!!! (IF you want to oveclock and change voltage, else would not work).
9. Install the latest Beta Catalyst, RESTART!!!
10. Install the Overcloking utilities.
11. ENJOY and Open a beer!
Edited by SonDa5 - 4/10/13 at 2:17am
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but I don't have water cooling, so my temps will be in high 70's ...
