Ithaca Intersystems DPS-1 jumper settings as taken from BIOS manual for BIOS 4c and from 64K hardware manual comments added HRJ Mar 10 2016 -------------------------------- Standard BIOS 4c User's Manual Page 30,31 Appendix A Jumper Configurations For Intersystems Series II Boards These are the jumper configurations required to run the Intersystems standard BIOS. Depending upon your particular application, some jumpers may be different. This list s intended only as a