All computers are two part machines and these two parts must be compatible
Refer to rule 2 of Computer Happiness
Always keep your hardware and software in the same generation -
In this case it is a clear warning not to approach this transition as a purely software issue - This is the time to prepare for a complete refit of both hardware and software - the reason is that Win 7 is fundamentally different from its predecessor windows XP. It has been fundamentally redesigned to suit the new generation of hardware .the I generation of CPUs - I3s,I5s,I7s. and the higher speed DDR3 ram - these modifications are essential to the future development of our personal technology -