Windows 7 - 5770 Overclock failure

Try upping the voltage, if you want to go higher. you can go upwards of 1.2 volts without to much danger.

MSI afterburner. You will probably have to adjust voltage. Go up in stages of 20mhz like said, and continue it with like .2v? Not a real OCing person so I'm unsure, but you need a stable voltage to go with your clock additions.

@morrow media it might be the cpu settings too seems like it for me i have a phenom2 quadcore 2.8 ghz oc to 3.2 i have a diamond hd 5770 oc to 900/1375 when ever i oc my cpu to 3.36 or anything to a 3.3 as soon as i play left4dead 2 it crashes right there it will run smooth but it crashes so i guess my chip and card are already pushed to the max which kinda sucks cause i bought a coolermaster heatsink dual fan design to maybe help me do better but to no avail if i go higher then 3.2 and start playing games it still crashes i guess im gonna have to live with what i oc cause it just seems i can't get it over that hump anyone else have a suggestions and also my temps are fine i adjusted fan speed and im useing catylst 10.6 i got fans all over and still it goes unstable any suggesions for something higher im also using a ta785ge biostar hybrid crossfire mother board