Help with HD6870 please!

Fagen

Distinguished
Oct 29, 2010
48
0
18,530
I have a new build system but im having troubles with my MSI R6870 Afterburner. Normal use and movies works perfectly but when i play games it works fine for awhile then it crash. System crash to black screen (screen on standby) and the fan speed go up to 100%. Does anyone have info or advice for me. The card idle at 41°C with 26% fan speed.

This is my system (nothing overclocked):

MSI 790GX G65 mobo

Phenom II x4 965BE @3.4Ghz

2x2GB DDR3 1333Mhz

MSI R6870

Coolermaster GX550watt