My results:
Machine: XT clone with XT IDE rev1 at 300h, CF2IDE adapter, 128 MB CF as master, no slave.
Result: Controller detected as XT IDE rev1 at 300h.
Machine: XT clone with XT IDE rev1 at 300h, CF2IDE adapter, no master, 128 MB CF as slave
Result: Controller detected XT IDE rev1 at 300h.
Machine: XT clone with XT IDE rev1 at 300h, CF2IDE adapter, 128 MB CF as master, 128 MB CF as slave
Result: Controller detected as XT IDE rev1 at 300h.
Machine: XT clone with 16 bit Multi I/O in 8 bit slot at 1F0h, XTIDE Universal Bios (CF 8bit mode) in NIC ROM Socket, CF2IDE adapter, 128 MB CF as master, no slave
Result: Controller detected as Standard IDE Controller at 1F0h.
Machine: PS/2 Model 30-286 with Sound Blaster 16 IDE at 170h, XTIDE Universal Bios in NIC ROM Socket, CF2IDE adapter, 2GB Microdrive as master, no slave
Result: Controller detected as Standard IDE Controller at 170h..
Machine: ACER 486DX33 with on board IDE at 1F0h, XTIDE Universal Bios in NIC ROM Socket, 3GB IDE HDD as master, 48X CD-ROM as slave.
Result: Controller detected as Standard IDE Controller at 1F0h.
Complex test:
Machine: XT clone with:
- XT IDE rev1 at 300h, CF2IDE adapter, 128 MB CF as master, no slave. Onboard BIOS Disabled
- 16 bit Multi I/O in 8 bit slot at 1F0h, CF2IDE adapter, 128 MB CF as master, no slave. No BIOS managing this controller.
- Sound Blaster 16 IDE in 8 bit slot at 170h, CF2IDE adapter, 2GB CF as master, no slave. No BIOS managing this controller.
Results:
-XT IDE rev1 at 300h.
-Standard IDE Controller at 1F0h.
-Standard IDE Controller at 170h.
Impressive.