BIOS firmware for the HP 440 G3 notebook, built on the Quanta motherboard DAX61CMB6C0, revision C. It is supplied as a 4.50 MB RAR archive. The DA prefix marks Quanta's numbering, and X61 is the project code inside the number. Technicians flash such an image to the SPI chip with a hardware programmer when the laptop powers on without display or has a corrupted BIOS. Back up the original chip before writing, as HP stores serial and product data there, and check the board revision first.
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.
All sources (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 1 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @generalbios | 8 Oct 2023 | Open file on RM Schematics |
| @generalbios | 8 Oct 2023 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
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 →