When I power the system, only the Mobo's LED's turn on, but nothing else boots or spins (this was all outside of a case since I had not received it yet). I contacted Asus support before doing an RMA, since I believed the Mobo was DOA, but I was told by the rep that I needed to flash my mobo in order to update the BIOS version since the CPU and mobo weren't compatible. I believed the x470 was compatible with 2nd gen CPU's out of the box? Now I need a 1st gen to flash the mobo, but I don't have a 1st gen AMD CPU available to me, and also don't know how to flash a mobo myself sadly. Any advice or confirmation about the compatibility?