Boardview for the Lenovo ThinkPad E580, board number NM-B421, designed by LCFC, Lenovo's own laptop ODM that uses the NM-xxxx numbering. The archive name also mentions PDF, so it may include a PDF layout alongside or instead of a native boardview file. Boardview data shows component placement, part references, nets and test points, helping you locate a shorted capacitor or measure a rail quickly. Native files open in OpenBoardView or FlexBV. Verify the NM-B421 marking on your board first.
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 | 6 Feb 2022 | Open file on RM Schematics |
| @pepeelectronica | 27 Apr 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 27 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
| @bartonarquivos | 28 Sept 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.