Dell Precision WorkStation 530 User Manual page 209

Select FlashBIOS Updates for the download category.
e
Click Go.
f
Follow the instructions on the screen to download the BIOS update
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utility.
NOTE: For some Dell systems, you are given a choice to create a diskette
containing the BIOS update files or to download a file you can use from
the hard drive. Select the choice to use the file that requires no
installation mechanism, or application. This allows you to download a file
that you can use from the hard drive.
Go to an MS-DOS prompt.
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Change to the drive and file path where you downloaded the utility.
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Type the command
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xxxxx -writehdrfile
of the BIOS update executable file on the diskette) and press
<Enter>.
This generates a file with an .hdr extension, and a message appears
indicating that the .hdr file has been written.
Copy the .hdr file to a blank, formatted diskette.
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NOTE:
This diskette does not have to be bootable. All operations for the
recovery utility are performed by the BIOS, and no boot files are required.
Insert the diskette into the diskette drive of the malfunctioning
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computer. Then turn the computer on.
The computer automatically regenerates the BIOS from the diskette.
Remove the diskette from the diskette drive so that the computer does
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not boot from the diskette the next time you start the computer.
(where xxxxx is the name
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S o lv ing Pr o b le m s