First, i have a Asus P8H67 Mobo, Trying Gigabit Lan PCI Adapter Rc 400. I tried plugging in the NIC and nothing. Pc wont boot. Will spin up and light up for just a split second and then it will stop. if i leave it for a moment it will try again. my onboard NIC died so i am trying a new path rather than new mobo of new onboard,I'm not so good with a iron.