The Adaptec Power Domain models 2940UW, 2940U2W, and 3940UW are now qualified by Digidesign to use with the B&W G3s with the following system configuration: Mac OS 8.6G3 Firmware Update 1.1 (has to be run after installing 8.6)Adaptec Power Domain 2940UW and 3940UW with v4.1 firmware (flash updaters available below) Adaptec PowerDomain Control 5.0.1 (control panel, drop on your closed System Folder to install)With the cards set to "Fast-SCSI: 10" in the PowerDomain Control Panel after installation of all of the above.Related Links: ftp.adaptec.com Adaptec PowerDomain Control - v5.0.1 controls features for most of their SCSI cards - 58k - Adaptec Power Domain 2940UW - v4.1 firmware for the SCSI card allows blue G3 Macs to boot from card - 143k - Adaptec Power Domain 3940UW - v4.1 firmware for the dual channel SCSI card - 331k Mac OS 8.6 update at www.info.apple.com - For OS 8.5 or 8.5.1 users G3 Firmware Update 1.1 at www.info.apple.com - (5/11/99) Improves PCI performance on all blue and white Power Macintosh G3 Desktop systems. Do not install this on Macintosh Server G3 running Mac OS X Server. Note that this update is not intended for beige Power Macintosh G3 computers.