Thats a huge loop on just one pump man, you'll probably have major pressure loss, (plus stripping it all an cleaning it out every six months would annoy you to hell hehe
Im leaning to the Cpu and maybe chipset off one line, and a seperate one altogether for the gfx cards,
or if you insist on that loop, another pump between the rad and 1st card, then another rad after the gfx cards,
Just my humble tho,
Good choice on the two sep. loops, the dual res was just a mod I thought up to save space for you
I'm afraid I couldnt help much on the heat generation Q, I would hazard a guess that if all the cards are running at the same speeds, they're all putting out the same heat,
You're probably looking at around 550-600 watts of heat that would need to be dissipated.
A single TT system trying to push thru 2 rads and 5 blocks would choke and die, probably pretty quickly.
Two little TT cooling systems with thier 120mm rads aren't going to cut it either, and the case in your sig wouldn't provide enough space for them anyway.
Spend some time reading. http://www.tomshardware.com/forum/256607-29-watercoolin...
ive read mixed reviews about these thermaltake systems.
now this is going to be my first liquid experience ever, i dont really feel comfortable mishmashing parts together and hoping it works. ive got 2 of these off of a friend (thermaltake systems) and i figured just as a beginning experience that id mess with these until i feel comfortable with liquid cooling and putting one together my self. on that note,
would a 3rd rad somewhere help though? and if so where would i put it logically?
EDIT: also i would like to try and keep the entire thing internal
You are going to need a lot more radiator surface area than those two little 120mm rads. Those 2 radiators would (maybe) be enough to cool the CPU alone. If you want to cool 3x SLI, you are going to need at least 2 2x120 rads, if not 2 3x120 rads. We call those 220's and 320's in most circles. I understand that you 'got these from a buddy', but seriously, you can probably only cool the CPU with what you have there. Once you start incorporating those 3 GPU's, you are needing to remove a lot more heat...more than quadrupling the amount of heat watts dumped into your intended loop.