BIOS firmware archive for the Acer Aspire 5745 built on the Quanta board DA0ZR7MB8D0, project code ZR7. The DA0 prefix followed by a project code and MB marks a Quanta main board number, so the same code printed on the PCB silkscreen should be confirmed before use. Technicians extract the image from the RAR and write it to the SPI flash chip with a programmer such as a CH341A when a board is dead or stuck after a failed update. Always read and save the original chip contents first and make sure the image size matches the chip capacity.
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 (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 22 Feb 2018 | Open file on RM Schematics |
| @biositechyangiyer | 19 May 2020 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | 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 →