Water cooling quad sli gtx-580s and wondering if 1 d5 pump is enough for it to work. It will be 4 blocks and then to chilled radiator in ice. Goal is 1000/1200 on the cards which is possible on stock direct CU cooler but that doesnt fit in quad sli.

I dont really want to split the loops up but that is kinda looking like whats going to happen. Would be kinda dumb to have the first card be nice temps and get progressively terrible x3.