You will be able to oc the cpu to 3.6ghz without increasing voltage. Just change your fsb. After 3.6ghz increase voltage 1 notch at a time and the fsb. I am getting same card as you are did you overclock it cause I know the card runs hot, even in default numbers, you will need to increase the fan speed. I just saw that you voltage is to high I am running 1.312v on 4.0ghz and u are 1.344v on 3.16ghz. Like I said you can oc to 3.6ghz without changing voltage. Reset your bios and start again.