Now this is strange - well at least to me it is 
I have a Gigabyte GV-R929OC-4GD Windforce which works perfectly well when using it's original fan/heatpipe cooling.
If I swap out the fan/heatpipes for a waterblock (XSPC in this case) and put it back into the rig the Motherboard doesn't even see it and I can't get the motherboard to even post. (Power connections are in place etc.)
Could this because there is no load on the FAN power supply off the GPUs board; i.e. the card is self protecting/not booting because it senses that there is no fans?
Is this even feasible?
has anybody seen anything like this before?
it's frustrating becuase the windfoirce makes quite a racket!

I have a Gigabyte GV-R929OC-4GD Windforce which works perfectly well when using it's original fan/heatpipe cooling.
If I swap out the fan/heatpipes for a waterblock (XSPC in this case) and put it back into the rig the Motherboard doesn't even see it and I can't get the motherboard to even post. (Power connections are in place etc.)
Could this because there is no load on the FAN power supply off the GPUs board; i.e. the card is self protecting/not booting because it senses that there is no fans?
Is this even feasible?
has anybody seen anything like this before?
it's frustrating becuase the windfoirce makes quite a racket!