Archive for Lenovo board NM-C221, noted as used in the Legion Y540 laptop, size 3.01 MB rar. The NM-xxxx pattern is used by LCFC, Lenovo's own design and manufacturing unit. The name does not indicate the contents; the size fits a schematic, boardview or BIOS dump, so check after extraction. Such files are used to trace power rails, locate components and test points, or reflash the SPI chip. Confirm the NM-C221 number on the PCB, and back up any chip before writing a dump to it.
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 @schematicslaptop. Enginerys does not host this file.
All sources (7)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 25 Jan 2021 | Open file on RM Schematics |
| @BiosSchematicWorld | 27 Oct 2021 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 22 Jul 2026 | 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 |
| @schematics_bios | 14 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.