Category: Network and modem
Manufacturer: Adaptec, Inc.
Caution Level: Safe
Download File Size: 243 KB
Operating System: Windows NT 4 SP 6, Windows 2003 SP 1, Windows XP AMD 64-bit, Windows XP 64-bit SP 1, Windows NT 4 SP 2, Windows 2000 SP 1, Windows 2003 64-bit, Windows 2003 AMD 64-bit, Windows XP 64-bit SP 2, Windows NT 4 SP 3, Windows 2000 SP 2, Windows Server 2003 x64 R2, Windows 2000
Latest Version / Release Date: 5.0.2195.1 / 03 Jan 2000
The Adaptec AHA-2950U2B - Ultra2 SCSI host adapter employs the Adaptec Ultra2 technology which is implemented via its device driver. The Ultra2 technology supported by the device driver doubles the data transfer rates of SCSI up to approximately 40 MB per second in 8-bit mode while up to 80 MB per second in 16-bit mode. The Adaptec AHA-2950U2B - Ultra2 SCSI host adapter has a PCI interface that is 64-bit. This PCI interface with the aid of the device driver addresses the requirements of next gen 64-bit servers and workstations while also integrating other performance boosting functions. This device employs a RISC processor 20 MIPS PhaseEngine that can off load I/O command processing coming from the computer’s CPU. It can also double up to 512 bytes the FIFO buffer needed for more proficient usage of the PCI bus.
Unless you update your drivers regularly you may face hardware performance issues.
To check your drivers you should manually verify every device on your system for driver updates
The device driver for the Adaptec AHA-2950U2B - Ultra2 SCSI host adapter also aids in implementing the LVD or low voltage differential technology. This technology allows the device to provide support for up to a max of 15 devices all on a 12m cable which in turn signifies a noticeable increase over the cable length of Ultra SCSI. Further, when configured point to point, the cable can be increase by up to 25m. This extended cable length will supply flexibility in the configuration of the system, especially in RAID and clustering applications. The Adaptec AHA-2950U2B - Ultra2 SCSI host adapter also has backward compatibility and integrates a highly developed multimode I/O cell that has support for both Ultra2 and single ended devices. In addition, the device driver supports the functionality of using an Adaptec transceiver chip for bridging the compatibility gap between Ultra2 SCSI and Ultra SCSI devices. It is highly recommended you run a free registry scan for and Adaptec AHA-2950U2B - Ultra2 SCSI errors before installing any driver updates.