Hi everyone, here I will explain how to unlock bios for gigabyte GV-R695OC-1GD graphic card. This method probably can be applied to some other cards from 6xxx series, and maybe other manufacturers but you would have to figure out some things by yourself. As you might know, this card doesn't have bios switch. Also, it's bios is locked by hardware. It's default clock is 870MHz for GPU and 1250MHz for memory. I tried to modify it's bios with RBE to unlock shaders to 6970 and also to move upper limit for GPU above 900MHz. It's not reference card but it was worth to try. Flashed it with ATIWinflash and after that I had BSOD on windows startup. I tried everything but without success, and then I realized it's bios is locked by hardware. Every tool I used for flashing failed with error "bios cannot be erased", or something similar. I found out bios chip for this model is PM25LD010. It has 8 pins like in this picture: Pin number 3 (WP# - write protect) need to be connected to pin 8 (Vcc - device power supply). For some other graphic cards you will need to take cooler off the card to have access to this chip. For this card luckily you don't have to. Here you can see where chip is located: Pins 3 and 8 are already connected, for that I used very thin wire from cable like this (cut it from old power supply): Result is, no warranty void and your bios is unlocked. Now, you can try to flash it and unlock 1536 shaders. On mine they were laser cut but you may have more luck Enjoy!