SYSTEM CRASHED Unexpected

[Aditcgeek]

so i just installed nfs most wanted from origin and started playing it but after playing for about 10 minutes my system shut downs and reboots itself .I thought it was everyday problem but i tried again after sometime but it happened again and again. so i opened my cabinet cleaned mobo and gfx with compressed air and tried again but no luck so i though it should be graphics setting problem(which should not be see my specs ) so i toned down the graphics and tried again but failed this time too so i thought it should be a heating or psu problem i checked cables and attachments in my pc but this time i played fallout 4 and it was no problem for my system i played it for 1 hour and later i tried nfs again but the shutdown thingy happened again please help me detect the problem. I have attached Temps and pc specs below

Computer name: AADITYA-PC
Windows version: Windows 7 Service Pack 1, 6.1, build: 7601
Windows dir: C:\Windows
Hardware: H81M-S, Gigabyte Technology Co., Ltd.
CPU: Genuine Intel Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz Intel586, level: 6
4 logical processors, active mask: 15
RAM: 8452579328 bytes total
GPU:- Sapphire R9 270x 2gb

temps
http://imgur.com/lcHicuj

 

[Aladdad]

A random shut down/reboot may be caused by heavy load on a PSU. what PSU are you running? i've had this issue once

 

[Aditcgeek]

A random shut down/reboot may be caused by heavy load on a PSU. what PSU are you running? i've had this issue once

Corsair vs550

 

[Aladdad]

A random shut down/reboot may be caused by heavy load on a PSU. what PSU are you running? i've had this issue once

Corsair vs550

Oh, well i don't want to say that this is the issue.. but i had a VS450 my self that caused my system to crash.. corsair VS power supplies are not very good... i would say try get your hand on another power supply just to test if it still occurs.. i don't want to say buy a new one.. but just test a different one..