On Fri, 2004-12-24 at 14:22 -0600, Dennis McCormick wrote:
> I use my Q800 for almost everything.
> I travel with a 280c which doesn't have an FPU.
> Could I add an FPU by swapping the processor in the 280c from a 68040LC
> to a 68040?
> The 270c used a 68030 (no LC) so heat shouldn't be a problem.
> Thoughts?
> Dennis in Wisconsin

The short answer: Yes. It'd work fine.

The long answer: Good luck finding a 68040 in the proper pin package.
It's not the standard socketed 68040 like in a Quadra. Also, it's not
socketed at all so you'd need either a lot of soldering irons or
whatever device one needs to solder chips. AFAIK the only Powerbook to
use a full 68040 in that package was the PB 550. These are quite rare
outside of Japan and would be a crime to kill one for a Duo.

Still, 280c boards are cheap so if you manage to find a 68040 in the
right package, have at it and let us know how it goes ;) You'd quite
possibly have the world's only 280c with a full '040.

I doubt a 68040 would be much or any hotter than a 68LC040.

Scott


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