no, both boards are effectively identical, just a different layout. The 
only idfference among ka630s is the rom revision and on some of the early 
ones, the presence of an FPU or not. 
Isildur

On Thu, 23 May 2002 NA4G@aol.com wrote:

> In perusing my MVII board stock, I ran across
> a couple of each of both of the KA630 cpu types.
> The earlier board had all the cpu chips in a
> row, and the later one has all the chips in a
> roughly square pattern.  Are there any real or
> practical differences of note between the two
> types that might affect MVII operation?
> 
> Thanks
> 
> Bob
>