After replacing my motherboard (The new motherboard is the same exact model as the last one) I plugged EVERYTHING, (EVERYTHING) in. I went to boot up my pc (For the 3rd time; the last 2 were me booting up my PC with a nearly dead front fan. So I replaced that. Then, when I successfully booted my pc, it passed post, it passed bios, but when it got past bios, it said "No boot device found." I made sure all the SATA cables were plugged in, and still, same thing. Just to make this short, I tested everything I could think of. Tested the power of the cables powering the devices, I checked the SATA cables, I checked the motherboard. Nothing. There are still a few things I could think of, but can't do them right now. Anybody who knows how to fix this?