Quick background. I've been building computers for awhile and I just recently purchased a new LGA 1150 gaming mobo and an i7 4770k as upgrades. I installed them but my computer wouldn't boot. Fans would turn on but nothing connected to the mobo had power (keyboard, mouse) and the bios didn't load. Another weird thing was I could turn it on with the power switch but it wouldn't turn it off. I had to clear cmos to get it to turn off. I sent the mobo back to get another and i put back by old hardware and yet the same thing is happening! Fans are turning but nothing will boot! This mobo doesn't have a clear cmos so I I have to flip the switch on the psu to turn it off. (psu is a corsair 750 with no voltage switch that I can see) I would greatly appreciate any help!!