How Much Head Room Do I Have Left?

halfblazed

Honorable
Aug 8, 2012
109
0
10,690
I currently have a Corsair HX850 installed in my gaming PC. I know my 850w PSU is enough for what I got but I was wondering how much headroom I have left in my system. I am about to put in a Corsair Link system for the lighting. My specs are as follows:

x2 EVGA GTX 680 SuperClocks in SLI
Asus P8Z77-V MOBO
16GB Vengeance RAM @1600Mhz
Intel 330 Series 60GB SSD
Corsair 120GB FORCE SSD
Western Digital 1TB HDD
Koolance WaterCooling (CPU and VGA) 8LPM 5.25 drive bay Pump/Res
3 120mm Cooler Master fans
1 200mm Bit Fenix Spectre Pro fan
1 Asus DVD drive (not a BluRay)
Intel 2600k OC to 4.6GHZ (1.4V)

Thanks in Advance!!!