Centris 610 and Quadra 610

[AlpineRaven]

Good evening all, 
I've obtained Centris 610 over the weekend - nice little unit. Its 68LC040 20mhz - slowest 68LC040 Ive ever used - good enough for basic use.

I do have a spare CPU in 25mhz 68040, I was wondering what the logicboard difference between Centris 610 and Quadra 610?

Since Quadra 610 is running at 25mhz.
Cheers

AP