I'd say its a driver Problem!
Do you have a 2nd Harddrive or 30-40gb free space?
Make Windows reinstall, if it works you can try to fix the problem on Main Windosw. Or migrate data to new one!
What about the PSU?
System with 3 480 drains about 750W or more! You have energy consumption meassure stuff?
And about the heat... watercooled? 480s are getting HOT and i think you got them all together with no space inbetween right?
GPU-Z or other tools says what for temperature while gaming? Over 85 celsius?
If you think one of the Cards is broken, just unplug 2 and test each card on its own with Furmark for 10-15 minutes.
Mfg
Haldi
Hi thanks for the reply. I have tried different drivers. Whats weird is the ENTIRE pc is freezing. Its not even a bluescreen. All the cards are watercooled, never go over 45c. Im going to test each card seperately now. if you can think of anything else let me know .