BIOS firmware for the Dell OptiPlex 3020 desktop, linked to motherboard DIH81R revision 00. The name points to an Intel H81 chipset board, and the RAR is 3.31 MB. Use it to restore a corrupted SPI flash with an external programmer when the system will not post or power cycles. Check the board marking and revision before flashing, and confirm the image fits the chip capacity. Read the original contents first, because service tag and other system data live in the flash.
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 →