Unrecognised problem of restarting of pc

Ramuk T

Reputable
Sep 25, 2014
1
0
4,510
I have purchased a new assembled computer about 3 months ago. It was going fine but suddenly it started restarting itself after e few minutes without appropriate reason randomly.Firstly, I thought that my win isn't working so i tried to install it again but the problem continued while installation too. so I cleaned the motherboard, ram and every thing also formatted the whole hdd and checked all the cables which has increased the running time a lot but now it gets restarted very less. but the problem has not solved completely. I am unable to locate the defected part (hardware or software). Please tell me what could be the actual problem?
My motherboard:- Gigabyte B75m-d3h socket lga1155
Cpu:- intel i3 3.3 ghz
Chipset intel b75