Pc restarts while gaming. Temperature Normal.

Harimandhanjal

Commendable
Jul 27, 2016
2
0
1,510
Hello,
My specs are as follows
gigabyte h87 d3h
8gb gskill 1833(running on 1600, since intel doesn't support 1833)
Sapphire 7870 i5-4570 3.2ghz (4th gen)
Windows 10 64bit
Two 2TB hdd
seasonic s12ii 520w 80plus bronze
Sunbeam CR-CCTF92-4 CPU COOLER
3 fans to keep the system cool. (AIR FLOW IS OK)
Pc runs smooth, Just restarts while gaming. (restarts on mac as well as windows)
Games tested.
Dota 2. Splinter cell Black list Metro 2033 WWE 2k16( this game does not restart, it works fine) Unreal tournament ( The new one, seemed to work fine, played for 15-20 mins only) I have tried

EVERYTHING Formatted windows (windows is running on its own drive, mac is running on a separate drive)
Applied new thermal paste.
Cleaned it. Enough fans to keep it cool.
Gpu goes till 71 while gaming.
Tried playing games on LOW/Ultra same result.
removed every power connection like (hdd, cd drive, fans) kept only the windows hdd running. checked all connections.
Tried connecting it to a different socket. Changed ram slot.
Changed GPU slot.
Reinstalled drivers. changed wires.
CPU/GPU/RAM benchmarks/stress-tests no errors found all worked fine ran for few hours.
I really can't figure anything. Everything is in warranty except the GPU. SOME ONE PLEASE HELP!

Update
Pc still restarts while gaming (tried using ON-Board graphics)
i have doubts on my motherboard/power supply
power supply is a year old. Motherboard is almost 3
Plus, its been raining here.