BIOS image for the Compaq CQ56 laptop on Quanta motherboard DAAX3MB16A1 revision A, compressed as an 890 KB RAR archive. The same Quanta AX3 board code also appears in CQ62 units, but use firmware meant for your exact model. Quanta labels its boards with DA-prefixed numbers printed near the board edge. Flash the SPI chip with an external programmer to recover from corruption. First save the original contents, then check the revision and that the image matches the chip size.
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 →