My apoligies Quantum. In the light of day I noticed within that huge heatsink on the card "A fan" Nvidia run their fans at default speed 29-33% to keep things as quiet as possible. You can change this using direct fan control in nvidia tune. Did a couple of stress tests with gpu fan set at 52% ,no problems, temp went to 44deg.. Only problem I have found that it does not allow me to load my saved profiles in nvidia folder. There is a program in setup called A1 overclocking which is good up to 15% OC but will not accept the 20%. 15% gives me 2.682ghz on cpu. I will disable in setup and use OC in nvidia tune saving profiles to see if this works any better.
Have nvidia "probe" on screen which shows voltages,fan speeds and temps. seems accurate.
cheers