Am I Overloading My PSU?

jazzmac251

Distinguished
Apr 23, 2011
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I just installed an Asus GTX 780DC2 in my rig and I'm using my old 560ti as a PhysX card. The first game I played to test this out was Assassins Creed 4: Black Flag. That's probably not the best test run for the new rig since that game is buggy as hell, but I've been getting some weird results. The worst is when my computer suddenly just shuts off completely mid-game. This doesn't happen very often, but it does happen, and ONLY when playing AC4BF. This has caused my savegame to get corrupted twice, losing all of my progress. I'm wondering if it's a driver thing or if I'm just pushing my PSU too much.

I believe this is my PSU (850 watts):
https://www.thermaltakeusa.com/products-model.aspx?id=C_00001995

And it's driving these components:

i7 3770k - oc @ 4.7gHz
- cooling: Corsair H100i, 2 Stock fans
Asus GTX 780 DC2 - oc @ +219mhz
EVGA GTX 560ti
- cooling: modded Corsair H50, 2 Noctua fans in push/pull
Firewire PCIe card
90gig SSDs (2) [Can't remember specs]
30gig SSD (1) [Can't remember specs]
1TB 7200RPM HDD
500gig 5200RPM HDD
Asus P8 Z77 Pro/Thunderbolt Mobo
Various USB devices
- (1) USB 3.0 device
1 Large circular case fan w/ LEDs
2 Standard case fans w/ LEDs

Is that too much?