Adaptec 3940AUW Installation Guide - Page 2

1 Getting Started This Installation Guide tells you how to install and configure AHA®-3940AU/AUW PCI-to-UltraSCSI host adapters. These host adapters have two SCSI channels which operate like two independent host adapters. AHA-3940AU/AUW host adapters are designed for computers with PCI slots. PCI is a local bus interface that enables high-speed data transfer. The computer in which you install the host adapter must be compliant with PCI 2.0 or higher and the motherboard BIOS must support PCI-to-PCI Bridges. If you are not sure whether the motherboard BIOS supports PCI-to-PCI Bridges, ask the motherboard or computer manufacturer. The AHA-3940AU supports up to seven 8-bit SCSI devices on each 8-bit SCSI channel. The AHA-3940AUW supports up to fifteen 16-bit or 8-bit SCSI devices on each 16-bit Wide SCSI channel; up to seven of the devices can be 8-bit devices. Installation procedures are the same for the AHA-3940AU and the AHA-3940AUW. 2 Board Layout The following diagrams and table show the major AHA-3940AU, AHA-3940AUW components. AHA-3940AU J1 J2 J5 J6 J4 J3 1 AHA-3940AU/AUW Installation Guide Part Number: 511418-00, Rev. A Print Spec Number: 496346-00 Current Date: 3/12/97 ECN Date:3/10/97