8MB firmware dump for Quanta board DAU99VMB6A0, revision A, marked OK by whoever saved it, meaning it was reported as working. DA-prefixed numbers are Quanta motherboard part codes, and U99 is the project code. The name does not say which laptop brand uses this board, so identify the machine from the PCB silkscreen. The image is meant for an 8MB SPI flash written with an external programmer such as a CH341A. Back up the existing chip contents first and check that the chip capacity really is 8MB.
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 →