Did the 4000 boot off IDE or SCSI originally, before you started mucking about ?
What do you mean by a Fake IDE Block ?
Surely if you have no IDE devices you just dont put a lead on the IDE header.
If it booted from IDE origanally then the SCSI partitions probably won't be set to boot or have an OS on them.
If it booted from SCSI originally check you SCSI card and make sure the "boot" jumper might not have come off.
