Recently purchased some Palit GTX 580's from scan. the picture on scans website showed reference coolers but these came with a non standard twin fan cooler. I'm looking for full cover waterblocks for these but dont want to spend money on the wrong blocks. After several emails to palit (Got to say they were very quick to respond), they told me they were a non standard design and they know of no w/c blocks at this time. I asked them for a image of the pcb so i could contact ek waterblocks and use their sevice to see if any of there other blocks would fit, but understandably , i think, palit wouldn't do this to protect their product design. (Seems they don't believe i'm just a geek with a watercooling fetish!!). I have seen somewhere that palit and gainward are effectively the same company and wondered if the palit and gainward cards would be the same design. and if a block for one would fit the other? Also as for cooling. I have the following thermochill radiators. PA120.3 x 1 PA120.2 x 2 PA120.1 x 1 Does anyone know which ones I would need to use for a 3 x 580 setup. Would also need one to cool an i7 920 on a seperate loop. Cheers.