If your system loses power and beeps constantly but does not boot when power is restored, the basic input/output system (BIOS) is probably
corrupted. To restore the BIOS, perform the following steps:
1. Disconnect the system from its power source.
2. Go to another working system, and download the BIOS flash executable utility for the system from the
File Library
located on Dell's
support.dell.com
website.
3. On the working system, go to an MS-DOS prompt and type the command
xxxxx
-writehdrfile
(where
xxxxx
is the name of the
BIOS flash executable utility you downloaded).
Running this utility generates a file with an
.hdr
extension.
4. Copy the
.hdr
file to a diskette.
5. Insert the diskette into the diskette drive of the corrupted system and turn it on.
The system automatically flashes the BIOS from the diskette.
6. When the system begins to restart and the Dell logo screen appears, remove the diskette from the diskette drive so that the system does not
boot from the diskette again.
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Summary of Contents for OptiPlex GX150
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