Firmware image for the HP ProDesk 400 G5 MT microtower desktop, described in the name as unlocked, packed in a RAR of about 6.47 MB. Unlocked HP dumps are typically used to clear a lost BIOS administrator password or remove restrictions, written directly to the SPI flash with a programmer. Before flashing, read and keep the original contents, since they hold the serial number and system data, and confirm the image size matches the chip on your board.
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 →