Firmware for the Sony VAIO VPCEF series, the AMD motherboard variant. The name gives no board number or revision, so read the markings on the PCB before using it. The 1.06 MB rar should hold a BIOS image written to the SPI chip with an external programmer when the notebook no longer starts. Intel and AMD versions of the same series use different boards and firmware, so do not swap them. Back up the original chip contents first.
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 →