I'm building a PC with pcpartpicker.com I found a Intel Core i5-3350P Ivy Bridge and at $179, I can't pass it up. However, the best MOBO I can find that fits my budget is an ASUS P8H61-M LX3. It says UEFI BIOS does that mean I don't have to do something with the MOBO to make it compatible? If not, how do I upgrade/"flash" the BIOS? Will I need another CPU? I have a REALLY old CPU around here somewhere, will I need that? Thanks.