This problem seems to only happen when Gaming The System is an Acer Quad core with a newly replaced Saphire Graphics Card. ( we thought it was the Graphice car problem , the new one works fine) the system hangs then dies , Happens repeatedly.
Acer Aspire M3800
4 GB Ram
64 Bit Win 7
Intel 2 Quad Q8200 @ 2.33 Ghz
Ati Radeon 5700 Series with Catalyst 11. 1