Tested working BIOS for Quanta board DA0NZDMB6E0, project code NZD, an 8 MB image delivered in a 6.64 MB RAR. The name gives no brand, though this Quanta number also appears on HP Envy all-in-one boards. Use it to reprogram a corrupted SPI flash with a programmer when the unit fails to POST or boot loops. The extracted image should be exactly 8 MB to match a 64 Mbit chip. Save the original chip contents first, since serial and product data may need restoring, and confirm the revision letter on the PCB.
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 →