Newer System Build shuts down during gaming!! Help!!

My system is probably about 8 months old but due to work i havent really had time to sit and play any games that much till this past week, and this is when i found the problem!

the system randomly shuts down while i play games! sometimes it will take over an hour sometimes less than 5 minutes.

the system is :

EVGA Classified3 E770
CoreI7 940 @ 3.3GHz
12gb Gskill DDR3 12800
OCZ Vertex 120gb SSD
300gb Raptor
2x 1TB WD Drives in a RAID 1 on the SATA6 Raid Controller
3x EVGA GTX470 Video Cards (Std Clock)
EVGA 8400gs PhysX
Antec Quattro 1000W PSU


The games that usually make it crash are

DiRT2
DiRT3
NFS Pro Street
COD MW2


but i can play Black Ops fine?


and lastly sometimes the system freezes up and then on reboot the kb and mouse dont recognize and then i have to unplug it to get it to restart correct again.

i have windows 7 pro with all updates. and all the correct and updated drivers.

can anyone help please!?!?!?
3 answers Last reply
More about newer system build shuts gaming help
  1. Did u install any updates or new drivers?
  2. i got no problems found with the memory test, and the drivers were updated a few months ago but thats it. and i just keep up with the windows updates.
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