Hi
Welcome to TPU
The card I have is an Asus HD 7970 DC2. Other forums and websites say that this HD 7970 is voltage locked. Is that true?
Yes; voltage is locked [*took a look at a few of the vbios images found in the TPU database]
I don't want to risk flashing bios
This would not be possible anyway in a conventional vbios editor as the voltage controller is hard locked, vbios image would need to be Hex edited and with no way of testing stability very time consuming
HD 7970 DC2 looks to offer
VGA Hotwire which allows you to plug and solder wires on the card’s voltage regulators and accurately read and control Vcore, Vmem, and PLL voltages on a hardware level [
*limited to Asus ROG motherboards]
Source
here
or
maybe a *hard mod soldering wires and resister/s to components on the PCB [not something I do or recommend]
(*other members of TPU may be able to assist)
Note: before invalidating the warranty sell the vga card and buy one that is voltage unlocked out of the box
Note: for future reference post in the AMD/ATI section
here
atb
Law-II