BIOS dump for a Dell board with platform code name RoundRock MLK, board number 15203-1, Dell part JM7HC, revision A00, packed as a RAR archive of about 4.5 MB. The 15203-1 numbering follows the Wistron ODM pattern, and Wistron builds many Dell notebook boards. Technicians flash such a file to the SPI chip with a programmer to revive a board stuck with corrupted firmware. Verify the board number and revision on the PCB, back up the original chip and confirm the image size matches the flash capacity before writing.
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.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 1 May 2021 | Open file on RM Schematics |
| @pepeelectronica | 27 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 26 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | Open file on RM Schematics |
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 →