Windows starts loading, gets past post, cpu shows up in bios at its default settings, either at the stock clock or whatever cool n quiet sets it at if enabled.
U will need bios 1703, which i think shows u in the bios, or download cpu-z and it'll show u. If u need to update, download the update from asus, use asus updater and go from there. Need to do this with the 8150, make sure its successful and then swap out the cpu.