BIOS image for the Hamar project, revision A, on Wistron board 15080-1. The name also carries the PCB part number 348.05A06.0011. Wistron uses this five-digit plus dash numbering, and the 348 prefix is how it labels its printed circuit boards. The 4 MB RAR archive is intended for flashing the SPI chip with a programmer to recover a dead or bricked board. Confirm that the board number and revision on the PCB match, back up the original firmware first, and check that the image size equals the 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 @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 →