Memory dump set for a Canon E414 printer board marked ST408, covering EEPROM variants 24C08, 4G08 and 4Q08 together with a 25L1636E serial flash. The 24C08 is a 1 KB I2C EEPROM, often holding counters and settings, while the 25L1636E is a 16 Mbit SPI flash with the main firmware. Repairers use such files to clear error states or recover a dead board by programming the chips. Read and save the original contents of both chips first, and confirm the markings on your board match the listed variants.
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 →