Progress:
IBM XT 5160 motherboard, Super XT BIOS, V-20, 8087.
XT PSU
CGA with composite out.
Memory card
Parallel Port Card
XT-FDC with Gotek
XT-IDE with DOM
DOS 6.22, mTCP
This setup works. However, the F2 option doesn't show. If I remove XT-IDE with DOM, the F2 option comes up.
Also, I have a XIRCOM PE3-10TP on the parallel port and can run mTCP programmes. TZ settings courtesy of Mr Brutman on SlashNET #vc. I also set up a Microsolutions BackPack floppy drive. I swap it and the XIRCOM as needed.
When I try to boot from the XT-IDE and DOM in the DTK XT clone the system boots to Starting MS-DOS... and then hangs.
Have to sort that now.