Compatibility between Pentium M on S478 v S479 & PPGA FC-PGA2 v PPGA?

[smilingcrow]

I’m looking at swapping the cpu on a Centrino laptop, however I have no idea what the compatibility issues are between the various sockets and packaging types. Anyone up on this?

Dothan seems to be either:

478 pin PPGA or
479 pin H-PBGA.

whilst Banias on the other hand is:

478 pin PPGA FC-PGA2 or
479 pin H-PBGA FC-BGA2 or

This info is taken from:
http://processorfinder.intel.com/sc...e=ALL&PkgType=ALL&btnFOS=Filter+on+selections

Is it possible to swap out a Dothan S478 PPGA with a Banias S478 PPGA FC-PGA2 and vice versa? I’m assuming here that the BIOS support is in place but wondering how the different packaging effects cpu and heatsink installation!

Help appreciated.

 

[NODES]

you dont want to replace a dothan with a banias chip..the dothan is better due to the Lv2 cache(which is 2mb)

 

[smilingcrow]

you dont want to replace a dothan with a banias chip..the dothan is better due to the Lv2 cache(which is 2mb)

I do if I intend selling the laptop that now has the Banias in it