After 60 second idle time Pc slowing down or freezes

Xavier-

Commendable
May 14, 2016
3
0
1,510
Hi,
I have a very strange situation. It is happening for the last week and first discovered with watching youtube videos. After 60 seconds watch its starts freezing, but the audio is coming normal. When I move my mouse video goes fast and when synced with the audio it goes on normal. It happens both with games and the other video contents. And here is the strange part: When I open the source monitor(task manager) to capture the sorce of the problem it nevet happens again. I get really confused. I dont want to format my pc for this wierd freezing. And I wonder why this is happening. I updated my gpu bios clean install graphics drivers, check disk, defragmentation, memory check etc.

Waiting for replies. Thank you.

My cpu: Intel 4770
Gpu : Gtx 660 ti
16 gb of ram
128 gb ssd + 1 tb hdd
 

Xavier-

Commendable
May 14, 2016
3
0
1,510