BIOS archive for the Dell OptiPlex 390 desktop, in RAR format at about 1.8 MB. The name gives no board revision, firmware version or chip details, so open the archive and check what images it holds before use. Technicians use such dumps to recover a board after a failed update or a corrupted flash, writing the image with an external SPI programmer. Always read and save the existing chip contents first, and confirm the image size equals the flash capacity.
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 →