Hey guys! New to this forum so be gentle with me I've tried lots and lots of forums and not gotten a helpful answer yet but I figured you guys have a bit more experience then others so here goes: The system: All parts are new and due to this problem none of them has ever booted correctly. Mobo: Gigabyte GA-P35-DS4 Power supply: Corsair 620W All other components are unimportant (read bottom of post) Symptom: When I press the power button the fans start spinning, watercooling starts and everything looks fine, but after a few seconds (2 - 10 seconds, random) it reboots itself and does the same thing over and over again. The screen stays black, which is odd seeing how it should (in 10 seconds) be able to post an image to the screen. What I've tried: Changed CPU Tested with orginal CPU-fan Used PSU with another system (works) Switched memory Used another graphicscard None of the above worked, but it has led me to believe that it's a motherboard failure. So, there you have it. Anyone got any tips or hints for me? I could sure use it! Thanks!