Mouse/keyboard/monitor turn off simultaneously when only playing PC games

[MRichter28]

ok so as the the thread states I play any pc game and within 10 to 15 mins all 3 turn off but my pc "runs" if you will when I turn it off it acts as if I shut down windows properly I have not updated my hardware since I made my rig about 2 quarters ago off the pc building guide it started about 2 months ago now I think its the motherboard but all lights/fans stay on the only driver I have not updated is my razor mouse(im not sure if that would cause a problem this big but I will be doing it soon) im just wondering if anyone else in the world has had the same thing happen to them

Specs
LITE-ON DVD Burner - Bulk Black SATA Model iHAS124-04 - OEM
RAZER DeathAdder Black 5 Buttons 1 x Wheel USB Wired Precision Optical Gaming Mouse - 3.5G Infrared Sensor

LITE-ON SK-1688U/B Black USB Wired Standard Keyboard
ASRock H67M (B3) LGA 1155 Intel H67 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard

Antec NEO ECO 520C 520W Continuous Power ATX12V v2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply

Intel Core i5-2400 Sandy Bridge 3.1GHz (3.4GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 ...

XFX HD-677X-ZNFC Radeon HD 6770 1GB 128-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card

Seagate Momentus XT ST95005620AS 500GB 7200 RPM 2.5" SATA 3.0Gb/s with NCQ Solid State Hybrid Drive -Bare Drive

G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBRL

COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ ABS Plastic ATX Mid Tower Computer Case

 

[odriscoll27]

[Antec NEO ECO 520C 520W Continuous Power ATX12V v2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply

Intel Core i5-2400 Sandy Bridge 3.1GHz (3.4GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 ...

XFX HD-677X-ZNFC Radeon HD 6770 1GB 128-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card
OK im cant quite understand your thread that well but one thing I have spotted I have quoted above. You are runnging a VERY high end system here.
The Graphics card you are using requries a MINIMUM of 500w just to work and your using an ECO PSU of only 520W. Dont forget a PSU is nto 100% perfect so if you allow for a 5% error this may actually only give you a loss of approx 25W bring it JUST below the 500W requrie for the graphics card to run properly.

ALSO - the i5 Cpu your runnign as a TDP of 95W. TDP (or Thermal Design Power) is the maximum power that it would draw when running real applications. It could just simply be that your does not have enough power to run so it may be worth upgrading your PSU to a higher end spec say perhaps 650W.


Hope this helps
James