Got it working! Not properly mounted indeed *fail* *shame* I had to bend the four 'feet' of the gpu-mounting plate more back. That way the heatsink actually made contact with the gpu-base which it wasn't doing before. I used the same method: Original red plate on the card, little Arctic supplied heatsinks on the area with the hole next to the VRM's. Arctic cooler fan set the 100% all the time (connected to the card): Clocks: 850mhz gpu, 950mhz mem. (My card was stock 1000gpu 1000mem, on those settings the benchmarks crashed) IDLE: gpu: 48C VRMs: 53C 54C 54C Mem: didn't measure Load (3dmark vantage, second test) gpu: > 105C VRMs: 70C 75C 74C Mem: didn't measure So my VRMs are holding very nicely but my gpu reaches too high temp's for my liking. I aborted the test once it gets to 107C. Isn't still not touching the gpu base enough or is this just Twin Turbo failing?