Disabling SCSI on a Blizzard SCSI Kit MK IV

[Zac67]

'On-accelerator' SCSI can be much faster than any Z II, Z III, or subsequently PCI card - it has direct access to the accelerator RAM w/o being slowed down by a slow bus connection.

PCI is a slight exception as DMA into (video) RAM on the PCI bus can even be much faster even - but the CPU would need to use the slow bus to get at it.

Plus, you won't be able to boot from any PCI SCSI HBA.

[Zac67]

I see - you want the SCSI module, but without the SCSI...

Have you tried simply removing the 27C256 EPROM? Won't actually disable the hardware but probably what you want.

ChaosLord has a point - the sandwiched board adds length and noise to the RAM traces - you'll need to test the memory very well if you'd like to trust it.