Firmware image for the Dell OptiPlex 9020 mini tower, covering the 4MB flash chip only, in a 2.52 MB RAR. These systems use a pair of SPI chips, and this archive supplies the smaller one, so the 8MB chip must be dealt with separately if it is also damaged. Flash with an external programmer when the desktop stays dark or beeps after corruption. Read the existing chip before writing, and check the marking and capacity of the target chip so the 4MB image fits correctly.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →