Hi! The S-100 6502 CPU boards are with their builders and seem to be working. John has written up a page on S100computers.com on bringing up the S-100 6502 CPU board. http://s100computers.com/My%20System%20Pages/6502%20Board/6502%20CPU%20Boar… We are incorporating the changes necessary for S-100 6502 CPU board V2 to be IEEE-696 compliant with TMI circuitry. The changes necessary are quite extensive. However, if other builders would like to make further changes please contact me. There is a large prototyping area on the V1 board to support the new circuitry. The schematics, PCB layout, parts list, and test software other information is on the N8VEM wiki http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder <http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%206502%20CPU%20board%20V1> &param=S-100%206502%20CPU%20board%20V1 There are still plenty of the S-100 6502 CPU board V1 PCBs left so if you would like one or more please contact me. They are $20 each plus $3 shipping in the US and $6 elsewhere. Thanks and have a nice day! Andrew Lynch