SLI GTX 770 4gb?

Brevillance

Reputable
Aug 25, 2014
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Howdy Like Minded Computer Nuts,

Im looking to SLI an EVGA GeForce GTX 770 4g, and im just wondering if my calculations were correct and my computer will be able to handle it.

I have an AZZA 800W 80+ Gold rated power supply, powering one 24'' Led monitor, a EVGA GTX 770 4gb card, Steelseries Apex Keyboard and a Rat MMO Gaming mouse. a few case fans (5 off the top of my head, more going in soon™) and a 120mm water cooling system. Running a X79-UP4 Motherboard, 8 GB ram (soon to be 16) with a I7-4820K 3.7 GHZ CPU. nothing is OC'd and no plans in the near future to do so.

If im not mistaken i should have enough with a bit of overhead for those moments where things get a little heated in game (mass explosions and the like). Anyone with more experience know if with a 800W i should be able to make it work? if i /need/ to upgrade my power supply i can but if its not exactly necessary then ill save the coin that i can.

Also...i want to SLI, rather then buying a single card upgrade; my reasons are my own so please do not say "just buy xyz card, its better" as thats not in reference to what i am asking about, thanks.

Any help is appreciated;
if any more info is needed go ahead and ask.
Brevillance