Lenovo · laptop motherboard

Lenovo R720 NM-B391

BoardviewBIOS
Board code
NM-B391
Platform
DY520
Made by
LCFC
Revisions
Rev 1.0
Files
7
Updated

Lenovo R720 NM-B391 is a laptop motherboard designed by LCFC and used in the Lenovo R720, Lenovo Legion Y520-15IKBN and Lenovo Legion Y520.

The catalog has 1 boardview file and 6 BIOS files for it, posted between 2020 and 2023 across 3 Telegram channels. Each download button opens the original Telegram post.

The files are marked Rev 1.0; other revisions of the same board can differ in parts and layout.

The boardview comes in .BDV and .TVW format. .TVW files usually need FlexBV or the viewer they were exported for; OpenBoardView handles .BRD, .BDV and .FZ. See OpenBoardView: Installation and First Steps.

BIOS notes: some archives also hold EC/KBC firmware. Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Also listed under platform DY520.

Compatible models

Files for Lenovo R720 NM-B391

Boardview files 1 All boardview files →

BIOS and firmware 6 All bios and firmware →

Frequently asked questions

Which laptops use the NM-B391 motherboard?
File names in the catalog tie NM-B391 to the Lenovo R720, Lenovo Legion Y520-15IKBN and Lenovo Legion Y520. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of NM-B391 do I have?
Files for this board mention Rev 1.0. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
How do I open the NM-B391 boardview file?
The boardview for NM-B391 is available as .BDV and .TVW. .BDV usually opens in OpenBoardView (free) or FlexBV. .TVW usually needs FlexBV or the matching viewer. See What Is a Boardview File and Why You Need One.
What should I check before flashing the NM-B391 BIOS?
Read the original chip with a programmer and save two copies before writing anything. Some archives include EC/KBC firmware, which may need to be written to a separate chip. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file