Alright so I returned my old board and got a brand new z77 extreme 4. I have updated the bios to the latest version and am having problems with random restarts after it boots up to windows. It runs fine for about 30-40 mins but then it just restarts itself.
i hope it is a good psu that you are using. that's a beefy graphics card you have there.
try running the system with just one ram stick and then see if it still reboots. check with both ram sticks.
Also there must be an instruction in your mobo manual which says something like " note, core series processors require ram in slot no 1 for the system to work properly"
For my system, it is necessary that for stable operation, i populate slot 1 with a ram stick.
have you checked your hard drive's health? are you using a particular program, application when this happens?
also when you installed the mobo in your chasis have you ensured all standoffs are properly installed? if you are using an aftermarket cooler, make sure you have all your standoffs in place and the cooler is not bending your mobo.
no after market cooler since the case has really good airflow. Drive is fine I can load it up on other computers fine. could it be some of the drivers from their site? and yes all standoffs are being used. Sometimes when I game sometimes when I am on skype. I end up getting the 1101 error in windows log for the restart.
may want to download hardware monitor on another one that logs atx power. could be two issues...one of the legs of the power supply has a bad component and it randomly drops below the atxs voltage spec. or one of the ac to dc converter in the power supply is bad....letting in ac ripple onto the dc side of the power supply. the ripple causing the system to lock up. to see if it could be your power supply not holding the load. try running with just the onboard gpu. the other place i would check make sure the mb set your ram timing up right. most new mb need xmp profile turned on.