I see a lot of questions about power loses after 4-pin cpu power is plugged in, but no good answers. Is this something new that is just cropping up? My comp shut down while i was using it. I bought new power supply before checking old one (stupid, becuase old one checked good). After stripping system down to motherboard and CPU starting plugging in power. 24-pin powers up both power supply fan and CPU fan. But when i plugged in 4-pin CPU Power, fans shut down. Plugged the 4-pin in first wih power off and no fans on startup. Tried it with power on and fans stopped immediatly. Bad motherboard? Bad CPU? Really need help here.