On Tue, Jan 9, 2018 at 6:37 PM, Richard Wilbur <richard.wilbur at gmail.com> wrote: > 68 - (24 + 4 + 8 + 7 + 4) = 68 - 47 = 21 > What are the remaining 21 pins? https://elinux.org/Embedded_Open_Modular_Architecture/EOMA68/Hardware#Pinouts_.28version_1.0.29 http://hands.com/~lkcl/eoma/microdesktop/microdesktop_v1_7.pdf