I have noticed recently that there arent really any blocks out that have a wider mount hole spacing than 64mm. i spent some time today at frys measuring boards and i noticed that all of them had a mount spacing on the chipset of 67-80mm, as does my much older UD3P (@ 67mm i believe), and in the last 2 years of searching i have not been able to find a single compatible waterblock for chipsets like these. im planning to get a P67A-GD65 soon (MSI), and the measurements for this board were 75mm spacing from mount to mount on the PCH. I took measurements on the mosfet coolers as well with a digital caliper but i havent looked yet to see if there's any issues fitting a standard generic block on yet. the top FETs have a 60mm spacing and the ones to the side have a 73mm spacing, with the cooler contact surface being 11mm wide. if anyone has ideas on liquid cooling this entire board post em here, ill be doing more research tonight when i get back from my astronomy class. anyone know of someone with plans to make custom blocks for any of the boards on the market? if someone's working something up i'd be interested in putting down for it
