If it's a Fusion Forty then you'll need to check the Rom versions, same for a 2901 SCSI card. It won't boot with the acceleration on without the upgrades. Works fine with the upgrades (thanks TjLaZer) and accelerator enabled.
I've got a second one with a GVP accelerator and 3.1 rom, but it has its own SCSI and works fine. The GVP does have the latest version Roms that are available.
-JM
