Dell OptiPlex E1 - Manual (Page 4)

2 Dell OptiPlex E1 Managed PC Systems Documentation Update
To reinstall the Microsoft-updated ATAPI driver for Windows NT 4.0, perform the
following steps:
1. If you have not already done so, use the Program Diskette Maker to make a dis-
kette copy of the 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 the Windows NT operating system. If you are already running Windows NT,
close any open documents or application programs.
3. Insert the Microsoft-updated ATAPI driver diskette into drive A.
4. Click the Start button.
5. Click Run, type D ?VHWXSEDW in the Run window, and then click OK.
A black screen will quickly appear and disappear, which indicates 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.
6. Remove the diskette from drive A. Then restart the computer.
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.
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To remove the Microsoft-updated ATAPI driver, perform the following steps:
1. Start the Windows NT operating system. If you are already running Windows NT,
close any open documents or application programs.
2. Use Explorer to open the system32\drivers subdirectory in the Windows NT
directory.
3. Rename the existing atapi.sys file to atapi.bak.
4. Rename the atapi.000 file to atapi.sys.
5. Restart the computer.
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The Dell OptiPlex E1 Managed PC system now supports Intel ® Celeron™
microprocessors with internal processing speeds of 300, 333, 366, and 400 mega-
hertz (MHz). The external processing speed for these microprocessors is 66 MHz.