You could always try buying a cheap one, at least for your northbridge.. of course, it would end up dumping heat in the water loop, so.. neah It's better to have all or nothing in this case. Either cool each element, or don't :| I still would like to see how my setup would work. I never seen it done... so maybe some have tried and f$%^ed their systems?
Some pics:
old friend of mine, had it since my coming here to TBCS, is used for the first time. I got tot the freezing point, the cold side even formed a small layer of frozen condesation.. But the PSU is showing signs of death (smells funny) Guess I better stop using it.. 12V on this weird load is having a funny effect on the brand-less PSU..