Lenovo BIOS package for the GS44B and GS55B platforms on LCFC motherboard NM-C561, revision 1.0, in a 5.25 MB RAR archive. LCFC is the Lenovo-owned ODM that uses NM-prefixed board numbers. The image is intended for reflashing the BIOS SPI chip when a machine fails to POST, has a corrupted firmware or needs a clean recovery. Make sure the NM-C561 marking and revision match the PCB, dump and keep the original flash contents, and confirm the file size fits the chip 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 | 16 Mar 2021 | Open file on RM Schematics |
| @pepeelectronica | 25 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 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 →