I want to upgrade my cpu to an i7 3770 from an i5 2500... But, the lenovo thinkcentre m81 only supports certain cpus... I figured they had an update for the bios that would allow me to use i7 so I bought the i7 3770 but, I can't find a bios update on their site for i7. I saw something about flash bios update and chipset updates but, wasn't sure. The motherboard is a IBM Lenovo ThinkCentre M81. Motherboard Systemboard 03T8005, I would really like some help. Thanks!