NM-B701 – Lenovo Legion Y7000
The Lenovo Legion Y7000, Lenovo EY515, Lenovo EY517 and Lenovo Legion Y530 are built on the NM-B701 board designed by LCFC. The catalog lists 16 files for it: 10 BIOS files, 2 schematics, 4 boardviews and 1 EC firmware image.
File names mention revision 1.0 or 0.1. ODM project names: EY519, EY520 and EY515. First posted in December 2020 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 10
Schematics 2
Boardviews 4
From the uploader
LENOVO Y530-15ICH EY515 EY517 EY519 EY520 NM-B701 REV 1.0 i5-8TH NVIDIA 1050 2018-03-21 TESTED OK Clean Me
Board facts
| Board number | NM-B701 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-B |
| ODM project | EY519, EY520, EY515 |
| Revisions | 1.0, 0.1 |
| CPU generation | Intel 8th gen |
| First seen | 2020-12-20 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics, Boardview Schematics |
| About the number | LCFC is Lenovo's joint venture with Compal; its main boards use NM- numbers and sub-boards NS- numbers. |
Laptops that use NM-B701
- Lenovo Legion Y7000
- Lenovo EY515
- Lenovo EY517
- Lenovo Legion Y530
- Lenovo Legion Y530-15ICH
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .tvw | Tebo-ICT .tvw boardview | FlexBV or Tebo-ICT View |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Is there a boardview for NM-B701?
Yes, 4 boardview files in .bdv and .tvw format.
Who designed the NM-B701 board?
NM-B701 is an LCFC board number used by Lenovo.
Which laptops use the NM-B701 board?
Files in the catalog link NM-B701 to the Lenovo Legion Y7000, Lenovo EY515, Lenovo EY517, Lenovo Legion Y530 and Lenovo Legion Y530-15ICH.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.