I recently set up my computer. 6700K Processor with GTX 980ti GPU. It was running very well on an ancient 1080 monitor but I decided to get one of those fancy 1440 144Hz monitors and really push things. Everything still looked pretty good but I thought to myself, I can still do better. So I got a second 980ti to configure SLI and reaaaaaally push things. Now I'm finally getting the graphic quality I'm looking for but I'm running into some GPU temperature issues. Before when I had a single GPU, it ran about 72C at full load. I figured that was an acceptable temperature and didn't really think too much of it. Now that I added a second GPU, however, the top card rises to about 83C under full load. Slightly unacceptable.
So I think it might be time for me to add some water cooling to my GPU's. I am currently using a Corsair 750D case and I actually am quite happy with my CPU temperatures. I've got a x61 Kraken on the CPU, with the radiator for that utilizing the top of the case. I'd rather not change that, but that's not a deal breaker. My Power Supply is a EVGA 1000 Watt supernova, which kinda blocks any reasonable radiator on the bottom. I guess I could probably fit a 120 or a 240 there if I took out the HDD enclosures(which I'm prepared to do). Which leaves the front. I'm 90% certain I can throw a 240mm Radiator there, but is that enough for two GPU's? I don't intend to overclock particular hard, I just don't want my GPU's to be within 9 degrees of their max temp limit.
I wish they sold GPU kits along with their cpu ones, but I guess thats an even more niche market than even most custom watercooling. Anyway, I don't particularly care about the aesthetics or sound levels. I just want my GPU's not to burn up! Thank you for any help you may give.
EDIT: I've considered just buying one of their 240mm CPU kits and just setting aside the CPU part and hooking everything to the two GPU blocks. Is there anything obviously wrong with that that people can think of?