Firmware dump for the Dell Vostro 3750 using Quanta motherboard DAV03AMB8E1 revision E, with the name noting a 4 MB image, which fits a 32 Mbit SPI flash chip. Quanta builds boards under DA-prefixed codes, and this same board appears in other Dell models. Extract the RAR and confirm the binary is exactly 4 MB before writing it with a CH341A or similar programmer. Keep a backup of the original chip, since it holds the service tag and system data.
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.
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 →