My PC freezes when I'm in game


Oct 15, 2012
A few months ago I've built my own PC, and since a week ago I'm having serious trouble with it when playing games.
My problem is that my PC freezes when I'm in-game, I don't get no blue/black screen just a frozen image of my game,
my keyboard and mouse stop with working(I can't press CTRL+ALT+DEL), I don't hear no sound from my headset/speakers.
A buddy of mine said that it is a RAM problem, so I ran a Memtest86+ test(Only 2passes, I was short on time) it didn't find any errors.
Keep in mind that this problem is only occuring when I'm playing games!

Please help me out, I spend all of my saving on this machine and it's not even working properly
Thank you very much for trying to help me out!

My specs are :

*Motherboard : Gigabyte Z77M -D3H
*CPU : Intel i5 3550 (NOT OVERCLOCKED)
*GPU : Asus Radeon HD7850 (I did some tweaks with the software you get)
*PSU : OCZ ZS Series 650W
*HDD : Western Digital Caviar Green
*OS : Windows 7
*RAM : 2x4GB Corsair Vengeance CMZ8GX3M2A1600C9

My temps are :
CPU -> Idle : 31°
CPU -> In-game : 48°

GPU -> Idle : 28°
GPU -> In-game : 49°-52°

All of my drivers are up-to-date, it's defenitly not a driver problem because I've deleted and then installed all of my drivers.
(Except for my motherboard drivers, I used the CD that came with my mobo to install the drivers)


Undo the tweaks you did on the 7850. Your temps are fine. You can probably get better motherboard drivers from the motherboard's web site. Let us know if that works....