Adaptec PERC2, PERC2/Si, PERC3/Si, PERC3/Di, v., A12

This software contains the Windows NT4 driver for the DELL PERC 2, PERC 2/Si, PERC 3/Si, and PERC 3/Di controllers.

Fixes & Enhancements


-Filter driver checks Dispatch_Level before calling KeWaitForSingleObject avoid bugcheck 0xB8
-Modified unknown AIF handling to prevent Driver Verifier hang.
-STATUS_INVALID_PARAMETER returned for requests with: Zero-length input buffer size.Invalid input buffer size, i.e. not the size of the expected structure.
Invalid memory address for the input buffer.A null input buffer.
-Deletes perc2hib reference in lower filter list rather than entire filter list via inf.
-Corrected a major entry-point in the filter driver that Windows uses for major Plug-N-Play requests (IRP_MJ_PNP). This entry point was incorrectly passing the request to the next lower device in the device stack.
-Deleted the section that removes the upper and lower filters. This section caused errors to be logged in the setupapi.log in Windows.
-Added support for new vSCSI implementation


Version, A12



Release date

14 Apr 2004

Last Updated

03 Nov 2011


Available formats

File Format:Hard-Drive
File Name:nta12drv.exe
Download Type:HTTP
File Size: 167 KB
Format Description:This file format consists of an archive of files that may be decompressed to a directory on the hard drive. The installation can then be done from that directory.
To ensure the integrity of your download, please verify the checksum value.
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By downloading, you accept the terms of the Dell Software License Agreement.

Applies to
Installation instructions
Custom Instructions for nta12drv.exe:

Driver Installation for Windows NT 4.0

To perform a fresh installation of the Windows NT device drivers
for the controller, follow these steps:

1. Boot the system using the Windows NT 4.0 CD.

2. When the message: "Setup is inspecting your computer's hardware
configuration" appears, press F6 immediately.

3. The Windows NT 4.0 Setup screen will appear, requesting
input for additional adapters in the system. Press 'S' to
specify an additional adapter.

4. A selection menu will appear. Scroll to "Other" and hit

5. Insert the driver diskette and press ENTER when prompted.

6. The selection:
will appear, hit ENTER.

7. After the driver has loaded, press ENTER to continue the installation.

NOTE: Before you perform the upgrade, uninstall the
Controller Management Software (FAST and the CLI).
See the installation guide associated with your
controller for instructions on how to uninstall the
Controller Management Software.

To upgrade the Windows NT device drivers for the controller,
follow these steps:
1. Follow this path from Start:

Start -> Settings -> Control Panel -> SCSI Adapters -> Drivers

2. Click on 'ADD' in the Driver window.

3. The system displays an "Install Driver" window.
Select "Have Disk".

4. The system displays an "Install From Disk" window.
The "Install Driver" window instructs you to insert
the manufacturer's installation media into the drive
and click < Ok>. In this case, insert the diskette
that contains the NT device drivers for your

5. Enter the drive and location of the files. The
default location on the diskette that contains the NT
device drivers is: "a:\".

The system displays a message identifying the
controller for which you want to upgrade the Windows
NT device drivers. The message requests that you
click the button.

6. The system displays "System Settings Change" and asks
if you want to restart the computer. Press YES.
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).