While waiting for some parts to be delivered (for my A5000 project), I worked a bit on my A3000.
The ZIDEFS IDE podule is now fitted on top of the MIDI podule.
There is a link from pin 10 of IC33 to pin 3 of the SK3 connector, in order to make 2 podules work at the same time.
But when I boot the machine, only podule one (MIDI) is recognised.
I thought the ZIDEFS IDE was damaged during its mod, but when I fit it alone it's perfectly functional.
Also fiddled a bit with the HD FDD module, but still no success.
The FDD works flawlessly with DD discs, but when I run HDADFS, I have an error and the FDD icon disappears... I have no way to try whether HD discs work or not.
I don't know if HDADFS is compatible with RiscOS 3.11, as the Qubeserver version I have works with RiscOS 3.10, and is patched using ADFS vesrion 2.67.
...Check your ADFS version is 2.67 (RiscOS 3.10, not sure about 3.11 and 3.19) as the BASIC proggie which makes the patched ADFS doesn't work with other versions.