I dropped in the 11/23+ CPU and everything worked fine, except that my EDSI harddisk has bought the big one... According to ROM diags, I have EIS and FIS for CPU options and 1024Kwords RAM. I plugged in my Infinite Loop and it ran. The one-instruction infinite loop doesn't work, at 1000 it jumps to 1006 (JMP (PC)). And the RX02 responds NO DISK, which is correct. Now all I need to do is go find an operating system! Does anyone have any programs or etc. that can be dropped in core with ODT?