To use a PowerBook in SCSI Disk mode with a Power Macintosh G3 (Blue and White), the Power Macintosh G3 (Blue and White) must be configured with one of Apple's SCSI card options. The recommended solution is to use the Apple Ultra PCI SCSI card which is available as a Build To Order option from the Apple Store. This card ships with an HD50 to 25 pin adapter for use with a standard SCSI system cable. Make sure the PowerBook has password security disabled before using the PowerBook in SCSI Disk mode. Also, you must make sure the PowerBook SCSI Disk Mode control panel is set up with the correct SCSI ID information. Do not use a SCSI ID that is already in use by other devices on the SCSI bus.
Here are the steps to connect a PowerBook in SCSI Disk Mode to a Power Macintosh G3 (Blue and White):
1. If necessary, disable the PowerBook password security option.
2. Set up the SCSI Disk Mode control panel to use a unique SCSI ID.
3. Shut down the PowerBook.
4. Shut down the Power Macintosh G3 (Blue and White).
5. Connect the HD50 to 25 Pin adapter to the SCSI card's external connector.
6. Connect a standard SCSI system cable to the adapter.
7. Connect a PowerBook HDI-30 Disk Adapter cable to the SCSI System Cable.
8. Connect the small connector on the HDI-30 Disk Adapter cable to the SCSI port on the back of the PowerBook.
9. Turn on the PowerBook; this should display the SCSI symbol with the SCSI ID number in the middle of it on the screen.
10. Turn on the Power Macintosh G3 (Blue and White).
The PowerBook's hard disk volume(s) should show up on the desktop of the Power Macintosh once the computer has started up.
Note: The Apple Single Channel Ultra2 SCSI PCI card may not function correctly with the PowerBook in SCSI disk mode, treating the SCSI bus as unterminated. In that case, multiple hard drive icons will appear on the desktop of the Power Macintosh G3 (Blue and White). This is an issue with the way that the card interacts with the PowerBook SCSI Disk mode software.