If you have downloaded the Adaptec 7800 Family Manager Set Driver (AIC78XX.SYS & AIC78U2.SYS) for Windows NT , it should prompt to select from two groups of driver listings.
Driver listings are:
- Adaptec AHA290x/291x/294x/394x/4944/AIC78xx PCI SCSI Controller (NT 4.0)
- Adaptec AHA-294xU2/295xU2/395xU2/AIC-789x PCI SCSI Controller (NT 4.0)

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For non-Ultra2 host adapters, Select the 'Adaptec AHA290x/ 291x/294x/394x/4944/AIC78xx PCI SCSI Controller(NT 4.0)' and press ENTER.

Adaptec Aha-2940u/2940uw/2940d Pci Scsi Controller Driver Download 64-bit

PCI

Adaptec Aha 2940u2 U2w Pci Scsi Controller free download - Adaptec SCSI RAID Controller, Adaptec ASPI Drivers, Adaptec DirectCD Update, and many more programs. Adaptec Aha 2940u 2940uw 2940d Pci Scsi Controller free download - Adaptec ASPI Drivers, Adaptec UDF Reader Driver, Adaptec DirectCD Update, and many more programs.

For Ultra2 host adapters, Select the 'Adaptec AHA-294xU2/295xU2/395xU2/AIC-789x PCI SCSI Controller(NT 4.0)' and press ENTER.

If the driver fails to load, please check the resources defined on the controller.
You may have some resource (IRQ, I/O and Memory Address) conflict(s).
Please check other articles referring to IRQ and resource conflict.

Category: System and Controllers
Manufacturer: Adaptec Inc.
Caution Level: Intermediate
Download File Size: 5.93 Mb
Operating System: Windows NT, Windows 98, Windows 2000, Windows XP
Latest Version / Release Date: 0.11.9 / 23 Jun 2009

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Windows device driver information for Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller

Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller uses the latest version device drivers that are identified as 5.1.2600. 2180. This version of device drivers is highly compatible with the Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller and makes it work more easily and in a better way. The problem with older version devices is that they can develop conflicts with the controller and thus create an error in the scsiadapter set up. The drivers to be used with Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller also need to be updated frequently, that is within intervals of one month or as frequently as possible. In order for the Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller to function properly, a driver to be used with it must be chosen cautiously to ensure that it is fully compatible. In addition, back up windows must be made each time a user of the Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller user wishes to make updates of the Microsoft driver.

Outdated Drivers?

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

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Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller Driver Download
Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller

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The following is a systematic guideline for the installation of the Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller driver. The first step is to download the Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller file by clicking on the download URL as indicated on top of this page. The download is saved into a computer and unzipped. Secondly, the Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller is connected onto a computer. To install the driver, the computer user right-clicks on the My Computer icon and selects properties then Device Manager under the hardware tab. The Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller is found on the scsiadapter category, so the user double clicks on the “Device” icon and then presses the Reinstall Driver Button that appears. From this stage, the user selects Install from Specific Location and ensures that the Include box is checked before double clicking on the Browse button to select the Microsoft driver. This is followed by clicking Next and then Finish to complete the installation process. It is highly recommended you run a free registry scan for Windows and Adaptec AHA-2940U/2940UW/2940D PCI SCSI Controller errors before installing any driver updates.

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