Adaptec 29320A-R User Guide - Page 19

Introduction s Adaptec SCSI Card 29320A s SCSI Channel (SE) -has two internal connectors. s SCSI Channel (Ultra320)-has one internal connector and one external connector. s Adaptec SCSI Card 29320ALP s SCSI Channel -has one internal connector and one external connector. For the best data I/O performance, Adaptec recommends that you keep your Low Voltage Differential (LVD) and non-LVD devices separate. (LVD devices means Ultra320, Ultra160, and Ultra2 SCSI devices and non-LVD are Fast SCSI or Ultra SCSI devices.) For dual channel cards, Adaptec recommends that you connect LVD SCSI devices to a separate SCSI channel from the non-LVD devices to allow for maximum speed. Although an Adaptec SCSI Card is a 64-bit PCI/PCI-X card, it also works in a 32-bit PCI slot. When installed in a 32-bit PCI slot, the card automatically runs in the slower 32-bit mode. Device Drivers The Adaptec SCSI Card comes with a set of software device drivers and other files that enable it to communicate with your computer. For information on how to install the driver for the Adaptec SCSI Card, refer to the section of this User's Guide that describes your specific operating system. 1-3