Compaq Deskpro 4000N Maintenance & Service Manual page 111

14. The system will automatically recognize the Slimline CD-ROM drive sold by Compaq and then
automatically reconfigure the computer.
If you have installed a third-party hard drive that is not a Plug and Play device, you will need to
run Computer Setup to reconfigure the computer. Refer to Chapter 2, "Configuration and
Diagnostic Utilities," for information on running Computer setup.
CAUTION: When servicing the computer, ensure that cables are placed in their proper locations during
the reassembly process. Improper cable placement can damage the computer .
Compaq Deskpro 4000S and 4000N Personal Computers 5-37