Written By Pinoy Tekkie on Miyerkules, Setyembre 5, 2012 | 1:04 AM
RAM is backward compatible, as long as it is the same type.
DDR 400 is backward compatible with DDR 333 and lower speeds.
DDR2 800 is backward compatbile with DDR2 667 and lower speeds.
DDR3 2400 is backward compatilbe with DDR3 2133 and lower speeds.