Hi all , I could use some help . I have a win 7 64 bit pc with spec's of : Asus Crosshair V Formula MoBo, Samsung 840 Pro SSD , with a 3Tb Seagate Barracuda HDD, (2) HIS 7950 IceQ Boost w\3Gb in Xfire and Patriot 2000 MHZ Ram 3x4GB (12) . My problem began with the install of the Samsung SSD and the 3 TB Seagate upgrade I did 3 weeks ago . I play games on steam and after playing for about 30 to 45 minutes both monitors go down during the game as if the pc had been shutdown ,both are HDMI (1) is Asus VW 266H the (2) Is a 42" Sony Bravia . The PC is still on and never shuts off. It has to be Hard reset because nothing brings the video back up on the monitors, not moving the mouse or any button on the keyboard . I've ran 3DMark on the video cards and cpu . Ck'd Event logs for the times of the events , only the hard reset . Ran win ram diagnostics , all good . This has been going on after driver updates thru windows and AMD Catalyst Control Center . I'm at my wits end . I'm really a noob who googled how to do most of this. Please Help !! Thank you for any ideas .