I'm considering a mixed cooling mechanism case-mod, with direct-die phase-change cooling of the CPU and a watercooling loop through a Koolance liquid-cooled PSU and the MOSFETs and both north and south bridge, plus the graphics cards. Possibly the hard drives too but I was worried about galvanic corrosion as the waterblocks I'd be using on the mainboard would all be copper, and the graphics card waterblocks would be copper with those bridge pipes that are silver in color (I'm guessing they're nickel plated?) to make the coolant flow in parallel through the graphics card waterblocks. The Koolance PSU's heat-exchanger is stainless steel (it has its own coolant inside the PSU and a heat-exchanger to transfer the heat from the PSU coolant in to the system loop coolant) and I'm not sure what radiator I'd use yet (might use TEC chilling on the coolant, not sure though) Would putting all the copper waterblocks in their own loop isolated from the PSU avoid the risk of galvanic corrosion, and would those bridge pipes I think are nickel plated pose a corrosion risk if used with GPU full-cover blocks that are NOT nickel-plated?
