Psu for two gpu

Will my psu be enough for two 680?
And is there any way to see if the PSU is struggling?
System:
Motherboard: Sabertooth Z77.
Case: Thermal take level 10.
SSD: 2 – OCZ Vertex 3 Series MAX IOPS Edition
HDD: 2 – Seagate Barracuda ST2000DM001 – 2 TB
Harddrive: 1
RAM: Corsair Vengeance – Hukommelse – 16 GB : 2 x 8 GB – DIMM 240-pin
PSU: http://www.corsair.com/us/power-supply-units/hx-series-power-supply-units/hx-series-hx750-power-supply-750-watt-80-plus-gold-certified-modular-psu.html
Please remember to double check that all your links have been coded. #3.10 links must be coded - including, but not limited to, e-mail addresses, passwords and internal links.
~~
Answer #1
may i know what 680s are these you are going to use?
are you going for the bare card speed only? or wanna tick it to overclocked?
Answer #2
Try here, its not exact but will give you a rough idea
http://www.extreme.outervision.com/index.jsp
Answer #3
It will run the happily, but you might want to go for a 900 if you overclock the cpu or the gpus.
Answer #4
may i know what 680s are these you are going to use?
are you going for the bare card speed only? or wanna tick it to overclocked?
My cpu is clocked to 4.2 from 3.2 = “intel 2600 i7”
the gpu is “eVGA GeForce GTX 680 SC Signature”
not clocking the gpu’s
Answer #5
The gpu draws 200W each, cpu OC;d about 100 max, rest of stuff adds to another 100 with an overhead. = 600, so a 750 is clear.
If you plan to add another drive(s), HD/SSD or bluray, you might – MIGHT – need to jump to 850.
Answer #6
i tryed the “http://www.thermaltake.outervision.com/” it said i needed 555W
Answer #7
850W would be a future proof in running your rig
safe and sound.. 850W 80+ certified so it won’t burn your cards down
Answer #8
Well i got the 680 and my system is running fine.
Answer #9
Well i got the 680 and my system is running fine.
I take it you have enabled SLi in Nvidia Control Panel (just gone SLi with 670’s and it seemed to easy )
Answer #10
Well i got the 680 and my system is running fine.
I take it you have enabled SLi in Nvidia Control Panel (just gone SLi with 670's and it seemed to easy )
yep i read some guides and all of them said it was the way to go.