Qualified SCSI HBA Cards - Pro Tools|HD Systems for Mac OS 9

For maximum track count, use of a qualified SCSI HBA (Host Bus Adapter) card is required with Pro Tools|HD systems.

The following cards are officially qualified with Pro Tools|HD systems with Pro Tools 5.3.1 for Mac OS 9 and Apple G4 desktop models:

Digidesign SCSI|128 Kit

• ATTO ExpressPCI UL3D
• Dual Channel Ultra3 SCSI Host Bus Adapter
• Supports full 128 tracks of playback and record with Pro Tools|HD Systems
• Product Information
• ATTO ExpressPro-Tools v2.7 or higher, supplied on Pro Tools CD-ROM or from www.attotech.com/software or Digidesign/Support/Downloads/Utilities

Digidesign SCSI64 Kit

• ATTO ExpressPCI DC
• Dual Channel Ultra/WIDE SCSI Host Bus Adapter
• Discontinued
• ATTO ExpressPCI Firmware v1.66 or higher required, available from www.attotech.com/software
• ATTO ExpressPro-Tools v2.7 or higher required, supplied on Pro Tools CD-ROM or from www.attotech.com/software or Digidesign/Support/Downloads/Utilities

ATTO ExpressPCI DC

• Dual Channel Ultra/WIDE SCSI Host Bus Adapter
• Discontinued
• ATTO ExpressPCI Firmware v1.66 or higher required, available from www.attotech.com/software
• ATTO ExpressPro-Tools v2.7 or higher required, supplied on Pro Tools CD-ROM or from www.attotech.com/software or Digidesign/Support/Downloads/Utilities

ATTO ExpressPCI UL2D

• Dual Channel Ultra2 SCSI Host Bus Adapter
• Discontinued (note also that this card is not compatible with OS X)
• ATTO ExpressPCI Firmware v1.64 or higher, available from www.attotech.com/software
• ATTO ExpressPro-Tools v2.7 or higher, supplied on Pro Tools CD-ROM or from www.attotech.com/software or Digidesign/Support/Downloads/Utilities

ATTO ExpressPCI UL3D

• Dual Channel Ultra3 SCSI Host Bus Adapter
• ATTO ExpressPCI Firmware v1.66 or higher required, available from www.attotech.com/software
• ATTO ExpressPro-Tools v2.7 or higher required, supplied on Pro Tools CD-ROM or from www.attotech.com/software or Digidesign/Support/Downloads/Utilities
• Product Information
• Model # EPCI-UL3D-000 *

* The 66MHz version of the ATTO EPCI-UL3D (model # EPCI-UL3D-066) is not supported for use with Pro Tools systems, regardless of whether your Pro Tools system is installed on a 33 MHz or 66 MHz PCI bus. The 66 MHz version is tuned for performance on a 66 MHz PCI bus. However, when Pro Tools is installed in a 66 MHz PCI bus, it reduces the speed of the PCI bus to 33 MHz. As a result, you will receive superior performance with the 33 MHz UL3D (model # EPCI-UL3D-000), because it is tuned for a 33 MHz PCI bus.

New Recommended ATTO settings for approved SCSI Host Bus Adapters with Pro Tools|HD:

From the Sync Rate pop-up menu, select the correct setting for your setup:

• Digidesign SCSI64 Kit with HD hardware: "20 (10)" (20 MB/sec at 10 MHz)
• ATTO EPCI-DC with HD hardware: "20 (10)" (20 MB/sec at 10 MHz)
• ATTO EPCI-UL2D with HD hardware: "80 (40)" (80 MB/sec at 40 MHz)
• ATTO EPCI-UL3D with HD hardware: "160 (80)" (160 MB/sec at 80 MHz)
• Digidesign SCSI|128 Kit with HD hardware: "160 (80)" (160 MB/sec at 80 MHz)

From the PCI Burst Rate pop-up menu, select the correct setting for your setup:

• Digidesign SCSI64 Kit with HD hardware: "32"
• ATTO EPCI-DC with HD hardware: "32"
• ATTO EPCI-UL2D with HD hardware: "128"
• ATTO EPCI-UL3D with HD hardware: "128"
• Digidesign SCSI|128 Kit with HD hardware: "128"

Notes:

• Adaptec 2940UW and 3940UW cards with G4s are unsuitable for full Pro Tools performance. Due to PCI bus related issues the Adaptec 2940UW and 3940UW SCSI HBA cards are unable to provide full Pro Tools performance. Additionally, Adaptec has discontinued these cards, and as a result there will be no future engineering support from Adaptec.
• Optional SCSI HBA cards bundled (by Apple) with some G4 computers are not compatible with Pro Tools due to the lack of NVRAM to store the desired SCSI transfer rate.