HP firmware package for a board numbered DAX8PMB18A0, a 21.4 MB 7z archive. The DA prefix with a trailing revision letter follows Quanta numbering, so the board was built by Quanta for HP. The file name gives no model or BIOS version, so inspect the contents to see whether it holds a full SPI image, EC firmware or separate dumps. Such images are written with a programmer like CH341A or RT809 when the BIOS chip is corrupted. Back up the original chip and confirm the image size matches the flash capacity before writing.
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 @efibios. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →