BIOS firmware for the HP rp5800 retail point-of-sale desktop system, delivered as a 4.68 MB RAR. The name gives no board number, BIOS version or chip details, so inspect the extracted image to confirm which SPI part it targets. Images like this are used to restore a corrupt BIOS by writing it directly to the flash chip with a hardware programmer. Read and save the existing contents first so the serial and system data can be recovered, and confirm the image size matches the chip.
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 →