BIOS archive for the TAHOE SFF MLK design, board 15140-1 with the reference 454D2Y alongside it. The 15140-1 style number follows Wistron's board numbering, and the extra code resembles a Dell part reference, although the name does not confirm the brand. Expect a flash image of about 5.33 MB packed in RAR for use with an SPI programmer on a dead or bricked board. Check the PCB markings match exactly, keep a copy of the existing chip contents, and make sure the image fits the installed flash.
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 →