Can I upgrade my A20P processor?

[Indy452]

I'm wondering If I can upgrade my A20P processor from a P3m 700mhz coppermine to a P3m 1000mhz coppermine processor? Virtually the same other than the speed right?? I found this one on e-bay and wonder if it would work....
http://cgi.ebay.com/Intel-Pentium-3-PII ... 1892wt_905

Or, can I use a 1.06 P3m from a R31? I don't know too much about hardware compatibility so I thought I would ask here...Thanks.

[Unknown_K]

A20P uses 100Mhz FSB, so you need a 1Ghz 100FSB chip, later machines use a 133FSB speed and those top out at 1.2Ghz.

[Neil]

So, the CPU you are looking at on ebay is 1GHz @ 133FSB. It might work in your A20P, but it will only run at about 750MHz.

[Unknown_K]

I think the 133 fsb chip is slightly bigger then the 100 fsb model?

http://www.cpu-world.com/CPUs/Pentium-III/ Looking at the Mobile P3 and Mobile P3-m pictures.

[ajkula66]

It's not just about the CPU - the theoretical max is 1.0 coppermine - but it's not likely that the board will support it without the modded BIOS...A2x series ThinkPads are very tricky in this respect...

[Indy452]

O.K interesting. I guess I'll abandon that idea.....I don't want to take any chances on ruining it.

Thanks.