Chapter 1: Introduction
1-29
1-10 AIC-7890 Ultra II SCSI
Note: If you are using a low voltage differential hard drive, it is recommended that you use an LVD/SE
Ultra II SCSI cable. LVD/SE cables offer increased length and can accommodate more devices.
The SUPER P6DBU/P6SBU has an onboard SCSI controller that is 100%
compatible with all major operating and hardware platforms. The AIC-7890
controller provides advanced PCI-to-SCSI Ultra II SCSI host adapter features
in a 272-pin Ball Grid Array (BGA) package, as well as containing an inte-
grated dual mode (LVD/SE) transceiver. The AIC-7890 Ultra II SCSI chip
connects to a 32-bit PCI bus. It is PCI 2.1 compliant, it fully supports the
power management requirements specified in the Microsoft PC 97 guide-
lines and it provides SCAM level 2 support. The AIC-7890 functions with
Adaptec RAIDport III (ARO-1130U2) to deliver RAID functionality.
Ultra II SCSI enables faster data rates and longer cable lengths on the SCSI
bus. It doubles the data burst rate of Ultra Wide SCSI to 80 Mb/s for greater
system throughput. It also quadruples the maximum cable length of Ultra
Wide SCSI to 12 meters and allows up to 15 SCSI devices to be connected.
For information on installing onboard SCSI under Windows NT, refer to
pages 3-6 and 3-7 in the FAQ section of this manual.
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