DMB40 (11289-1 4UV01)

BIOS .rar 3.62 MB Shared

Firmware archive for the DMB40 project, Wistron board 11289-1 with the code 4UV01. No revision is given in the name. Wistron uses five-digit-dash board numbers, and DMB40 is a project code of the kind found on boards Wistron built for brands such as Dell. Technicians use such dumps to rewrite a corrupted SPI BIOS chip when a board stops powering on or posting. Before flashing, confirm that the 11289-1 marking on the PCB matches, compare the image size with the chip, and keep a backup of the original.

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.

7-ZipWinRARThe Unarchiver (macOS)

More about .rar files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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