I just installed a new motherboard (MSi B150 GAMING M3) into my PC. The two front leds light up on my case when it boots up but as soon as I log into my Windows account the power led turns off but the HDD led remains active. It's a bit of a last resort coming here. I can't seem to ask this question in Google without getting nothing but results about people not being able to power their PC at all. I've updated all drivers, as far as I know at least, and can't think of anything to try to fix this. Cheers.