I have a MSI Twin Frozr III r7950 with a 7970 PCB. After doing some research, reports from China are saying that they are manufacturing 7950s with 7970 boards. Other sites show them flashing a 7970 bios into a 7950 and unlocking the disabled stream processors. I know my PCB is a 7970, not only because the configuration is the same, but instead of a 6+6 PCIE power connection, I have 8+6 PCIE power connection. So i tried flashing with atiflash (MS-DOS) a lighting 7970 BIOS to my Twin Frozr II (basically the same card but different BIOS), this is what I get:
Thu Aug 30 00:15:51 2012
Command Operation without options: -p 0 newbios.bin
Old SSID: 2771
New SSID: 2770
Old P/N: 113-C3861300-X01
New P/N: 113-C3860100-X00
Old DeviceID: 679A
New DeviceID: 6798
Old Product Name: 113-MSITV277MS.202 TAHITI B0 PROH C38613 GDDR5 3GB 500E/150M
New Product Name: 113-MSITV277MS.110 TAHITI B0 CR XT C38601 GDDR5 3GB 500E/150M
Old BIOS Version: 015.020.000.000.001083
New BIOS Version: 015.012.000.004.000346
Flash type: Unknown SPI
I have been trying for a couple days now. The issue I have is not what I need but how. Like I said, i'm not worried about bricking it because it has dual bios, so if one fails, just switch over and recover. What I need help with is how to force flash my BIOS. The reason I quoted the Chinese market is because most of the products are made there then sold in America. I believe only reference cards by AMD themselves are made in America. Maybe AMD are, after all this was the case with the 6950. Many people were unlocking them to a 6970.
I think you're a little overconfident in your assurance that this is possible. If such a thing were possible, I'm almost certain I would have come across reports or stories of it being done. I have not. In fact, I've come across several stories of people trying it/looking into it and realizing that it's not possible.