Hi, i got a new pc last week and having some crashes/ bsod mostly when playing games. its about 0X0000007E and DXgmms1.sys in the bsod i allready ran memtest, no errors system: Windows 7 home premium 64bit Amd Phenom 2 X4 955 Gigabyte GA-890GPA-UD3H 4gb ram ocz Gigabyte Ati 5770 Catalyst 10.3 drivers CoolerMaster Real Power M520 Modular PSU i have no idea what the problem is tryed new drivers but still random crashes tryed to run ORTHOS but it gives an error in like 30sec: Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 3837 Time: 15 CPU: 3200MHz FSB: 200MHz [200MHz x 16.0 est.] 15/04/2010 18:10 Launching 2 threads... 1:Using CPU #0 2:Using CPU #1 2:Beginning a continuous self-test to check your computer. 2ress Stop to end this test. 1:Beginning a continuous self-test to check your computer. 1ress Stop to end this test. 2:Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length. 1:Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length. 2:FATAL ERROR: Rounding was 0.5, expected less than 0.4 2:Hardware failure detected, consult stress.txt file. 2:Torture Test ran 0 minutes 35 seconds - 1 errors, 0 warnings. 2:Execution halted. 1:Torture Test ran 0 minutes 35 seconds - 0 errors, 0 warnings. 1:Execution halted.