So, a few days ago, I bought a asus Z87-pro(V Edition) bundle from ebay (the motherboard, A celeron CPU, and 2x4gb DDR3). I've set it all up, tested it, and with the celeron G1820TE inserted, it works fine. However, when I try to boot with a pentium g3240, Pentium g3258, or an i7-4790k, it wont...