Gigabyte P55W

I bought the new Gigabyte P55w from newegg, and I'm pretty satisfied with it, but I have two really annoying problems:
1. Yoututbe on Chrome crashes the browser, and I tried reinstalling and downloading flash and deleting all cookies and data but nothing fixes it. Also when chrome crashes the cpu usage goes up to about 25% and the temp goes up to 85c. (on IE everything works fine)
2. GTA V online always crashes, sometimes as soon as it starts loading, and sometimes in the middle of a...

Gigabyte P55W

Gigabyte P55W