Help Please, Sudden Freezes

infighter001

Honorable
Nov 28, 2013
2
0
10,510
So, recently I changed my old mobo and got new ASRock 960GM-VGS3 FX freshly installed new windows 7 32 bit and whenever I randomly browse internet I get sudden freezes on my PC I cant move my mouse and there is stuttering or buzzing sound coming from headphones, then after while it comes to normal (rarely)

My PC Specs :

GPU : GTS 450 1GB
CPU AMD Phenom II X4 945 3.0Ghz
Ram : 4GB

I updated to latest Nvidia Drivers
Also, scanned my PC for viruses with Microsoft security essentials and malware bytes, and both scans show my PC is completely clean
What's wrong?

My Temp when not playing anything

CPU ~ 40
System ~30-38
CPU ~37
HDD ~40
CORE ~30-36

When Playing Games

CPU ~70-75
System ~40-50
CPU ~50-55
HDD (Sometimes) ~40
CORE ~40-50

Temp Measurements were done by SpeedFan