Windows 8 Pc freezes cannot be explained

Hello and i will start by saying that i am running windows 8.1 and my problem will be best described by looking at my other two posts on tomshardware http://www.tomshardware.com/answers/id-2889776/freezing-progressively-worse.html and linustechtips My Pc freezes and it is becoming more frequent. please help - Troubleshooting . essentially i have an AMD fx 8120 cpu watercooled and in an asus m5a97 r2.0 mobo plugged into an evga supernova 750gold psu. My problem is that randomly my pc will freeze entirely and i will have to reboot it no matter how long i wait. This can be induced everytime i visit certain websites like speedtest.net or hbogo and when i check the event logs i see nothing but a time gap which i posted in my tomshardware thread. i have run a live usb of ubuntu and was unable to replicate the same freeze which leads me to believe its an issue with windows. i appreciate your replies in advance and i am more than willing to post information in order to further diagnose the problem.