Automatic Restart of Windows on personal desktop.

aakashkedia2009

Honorable
Aug 1, 2013
4
0
10,510
Main Problem: Computer getting restarted randomly, automatically, at random times and at after random passages of time.

Desktop Config :

Processor: i5 4670
Cabinet: Cooler Master HAF 912 Combat Mid Tower
GPU: Asus AMD/ATI HD 6670
SMPS: Corsair SMPS VS 550W
RAM : Corsair vengenance 2x 4gb ram 1600 mhz
Motherboard:Gigabyte GA-B85-D3H
Hard Disks :
1)Seagate Barracuda 1 TB Desktop Internal Hard Drive (ST1000DM003)
2)Seagate Barracuda 1/2 TB Desktop Internal Hard Drive


Things i have tried:-

--Used both hard disks separately for OS(7-premium, 7 Basic, 8.1 Professional) and got the same result so i think its not a problem of hard disk or OS.

--Updated Bios and removed the Button battery of Mother board and put it again after 2 minutes(but have not replaced the battery yet)

--Used Core temp and speed fan to monitor the temperature of the processor and graphic card while the system runs.
Temp of CPU seldom go beyond 50*C. Temp of GPU seldom go beyond 60*C.
Sill Changed the thermal paste of Processor and GPU heat sink. and also cleaned Processor and Graphics card fans and whole Motherboard with cloth.

---But also I have never seen my system getting restarted until the windows boots

I fear its a problem of motherboard or smps, but how to identify it.

PS- i have a normal UPS and i have changed it with another UPS to rule the problem of UPS out.


Please give some methods/reasons to how to tackle this problem.


Update 1) My computer is not getting started as if you press the button on windows to restart. It turns of like a light bulb in a flick and then restarts.
 

aakashkedia2009

Honorable
Aug 1, 2013
4
0
10,510



I have anti viruses intalled. I reinstalled completly new OS. and still the problem persists.
I dont have %SystemRoot%\MEMORY.DMP file in the location C:/windows where generally this file is written by OS. This is because this file only forms when your windows crashes. In my case, windows is working perfectly.

Below are link of some of the snapshots of various tools that i ran....
http://i59.tinypic.com/5umhbn.jpg
http://i57.tinypic.com/i29csy.png
http://i59.tinypic.com/14uvt3m.png