Trouble flashing PT3 bios on gigabyte R9 290X

[buildzoid]

I have a gigabyte R9 290X and I got sick and tired if adaptive voltage messing with stability so I decided to flash the PT3 bios that shamino put out. However after flashing the card with ATIWinFlash I restarted the computer and got all the way into windows to find out that nothing could recognize my GPU. I tried a second restart and same thing. The AMD driver nor windows nor gpu-z could recognize the gpu. So I flashed the gpu back to the gigabyte BIOS and it works again however I have no ideas to why PT3 won't work and I really want to get rid of the adaptive voltage that ramps my card down bellow 1.2v once it hits 80c regardless of the offset that I set

So does anyone know what I'm doing wrong or why it won't work?

Edited September 25, 2014 by buildzoid

[zzolio]

try again can be a bad flash download the bios again

[dinos22]

You will burn PWM with that bios. Stick to PT1 which has vdroop still (when you do flash it, double check that you are getting a significant vdroop on the GPU core). It won't work phases too hard and you can give cards decent voltage if you have decent cooling on them (PWM and core)

[buildzoid]

How much Vdroop does PT1 have? because I just want to set a static 1.3-1.375V(starts at 1.4V but drops way bellow once the core temps ramp up) on the core.

Edited September 25, 2014 by buildzoid

[dinos22]

Same as regular bios. Do not flash to that bios because stock PWM won't handle it long term

[buildzoid]

Well I'll trial both with low volts (1.2V) to see how they behave under load. If PT1 isn't too bad I'll use PT1.

Edited September 25, 2014 by buildzoid