|CPU's use different FSB's and Motherboards support different FSB's. That's why Mick asked for additional information.|
It's impossible for anyone to advise you if we don't know what CPU and Motherboard chip is in question.
AMD Phenom II x6 BE 1090T @ 3.8GHz 1.368V
4x2GB G Skill Ripjaw 1600MHz
HIS Radeon HD6850 IceQX Turbo 1GB @ 900/1150