BIOS image for the Lenovo IdeaPad Z580 laptop, motherboard DALZ3AMB8E0 revision E, packed in a 2.77 MB RAR. The DA-prefix follows Quanta's numbering scheme, the ODM that built this board for Lenovo. Technicians use such a dump to reflash the SPI chip with a programmer when the laptop stays dark, beeps or loops after a failed update. Before writing, read and back up the original chip, confirm the board number and revision E on the PCB, and make sure the image size matches the flash 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 @efibios. 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 →