TMC MyComp motherboard information
This is what I have found on my harddisk, it is by no means complete. I don't know anything specific about the boards. This is all the information I have got. I do own a PCI54IT, but it is an OEM version that reports itself with a bios string: 2A59CANA. I suspect this is ADI because of the similar type number (F5DX-TN1.1) and I've got more material of them on this page.
PCI54ST
PCI54IM
PCI54IT
PAT48AV
Layout for the universal (?) TMC front panel connector
Manuals (not all of them...)