[SOLVED] Windows 7 computer keeps freezing

I have a windows 7 computer that i have recently made some upgrades to. I have recently put everything onto a ASRock Z77 Extreme 4 mother board and put it all in a new case. About 5 days after I made these upgrades my computer started freezing about 10 sec after boot up. I then reinstaled windows 7 and it works better but it still freezes every up after awhile. This normally happens when i have Chrome open.

CPU. I7 2600 3.4 Ghz. Quad core
MB. ASRock Z77 Extreme 4
RAM. 8GB DDR3 1333 ram (unknown manufacturer)
GPU. Navidea Ge-force 560 1GB
HD 2TB Seagate Barracuda
PS. 800W ATX Extreme Gear