There's definitely something broken. An old installation of Sinix 1.2 wouldn't boot on the PC-X driver, and while a new installation copies all disks to the harddisk, after the reboot, error messages (the NMI ones you can see in the screenshot) quickly run across the screen, until the monitor is started.

NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20