1-4 Dell OptiPlex GX1 and NX1 Documentation Update
Dell has installed the Microsoft-updated ATAPI driver for your operating system, and it
is operative when you receive your computer. No further installation orconfiguration
is needed.
NOTE: If Windows NT 4.0 is reinstalled, the Microsoft-updated ATAPI driver must also
be reinstalled.
The driver for Windows NT 4.0 has also been copied to your hard-disk drive in
diskette-image form. If you need to reinstall or remove this driver, you can do so as
described in the following subsections.
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NOTE: To install the Microsoft-updated ATAPI driver for Windows NT 4.0, you must
have a mouse connected to the system and Windows NT 4.0 must already be
installed on the hard-disk drive connected to the primary enhanced integrated drive
electronics (EIDE) channel.
To reinstall the Microsoft-updated ATAPI driver for Windows NT 4.0, follow these
steps:
1. If you have not already done so, use the Program Diskette Maker to make a dis-
kette copy of the Dell Microsoft-updated ATAPI driver diskette image on your
hard-disk drive.
The Program Diskette Maker is available through the Dell Accessories program
folder. For more information, refer to the online help provided in the Program
Diskette Maker.
2. Start Windows NT. If you are already running Windows NT, close any open docu-
ments or application programs.
3. Insert the Microsoft-updated ATAPI driver diskette into drive A.
4. Click the Start button and click Run. Type a:\setup.bat in the Run window,
and then click OK.
A black screen quickly appears and disappears, indicating that the driver file has
been loaded. Setup automatically saves the existing atapi.sys driver as atapi.000
and loads the new driver into the system32\drivers subdirectory in the
Windows NT directory.
5. Remove the diskette from drive A. Then restart the system.
NOTE: To enable or disable direct memory access (DMA) while using the Microsoft-
updated ATAPI driver, run dmacheck.exe from \support\utils\i386 on the
Microsoft
Windows NT Service Pack 3
CD-ROM.