Need help to overclock ASUS ROG Matrix 7970

Marko Laukkanen

Honorable
Oct 9, 2013
12
0
10,510
Hello everyone and good evening.

I recently bought this graphic card few weeks ago and I decided to overclock a little, but I am having a little problem.

Stock values with ASUS GPU Tweak tool:

GPU: 1050 MHz
Voltage: 1257mV

I can increase GPU clocks without any problems, but when I try to increase GPU Voltage, it won't change. The thing is that when I put 1300mV for an example, save and even click the burn button and reboot (what does this burn button do anyway, saving setup for every boot?) the voltages won't change. The program shows it is 1300mV, but when I try to overclock and test with furmark or 3DMark, it crashes or get graphical issues very easily. First I thought it is just because I got bad GFX and it won't overclock, but when I turned on HWMonitor and GPU-Z, I realized that GPU Voltages were still at 1257mV.

I tried to use MSI Afterburner, but there wasn't option to change voltages, not at all.

So the question is, how can I change voltages? Do I need to change Power Target or Load Line, or what is the problem?

Also, is there any other additional stuff I should know? I thought increasing GPU Voltages and GPU Clocks are enough to get some extra punch for games.

Thanks.