BIOS firmware for the Acer Aspire E5-511, packed as a RAR of about 2.78 MB. The P9R1Z5WALLA_B211P part of the name looks like a board or serial-style code, but it cannot be decoded with confidence, so check the marking on your PCB against it. A dump like this is written with an external programmer to fix a dead board, a failed BIOS update or a corrupted SPI chip. Read and keep a copy of the original chip first, compare the file size with the flash capacity, and confirm the model before relying on it.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 27 Mar 2018 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | 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 →