My computer will shut down when I am in-game, it has happened with Middle-earth Shadow of Mordor, Civilization 5 and War Thunder recently. I am not getting a BSOD. This started 8/17/14
AMD Athlon Quad Core Processor 4X 760K
(Brand New) EVGA GeForce GTX 750 SC FTW
GIGABYTE GA-F2A55M-HD2
Windows 7 64 bit
Kinigston HyperX 4x2 8GBs DDR3 1333mhz
Logisys 575w PSU
WD Blue 1TB HDD
AMD Athlon Quad Core Processor 4X 760K
(Brand New) EVGA GeForce GTX 750 SC FTW
GIGABYTE GA-F2A55M-HD2
Windows 7 64 bit
Kinigston HyperX 4x2 8GBs DDR3 1333mhz
Logisys 575w PSU
WD Blue 1TB HDD