BIOS image for an AH531 laptop, which matches the Fujitsu LIFEBOOK AH531 naming, in UMA form, meaning integrated graphics without a discrete GPU. Board number DAEFH5MB6F0 style Quanta coding applies here as DA0FH5MB6F0, revision F, packed in a 1.94 MB RAR. Quanta DA0 numbers carry the project code and revision, so the PCB marking must match, and UMA and discrete-GPU boards should not share images. Back up the original SPI chip before writing with a programmer and check the file size fits the chip.
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 (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 12 May 2018 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 27 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 →