Lenovo · laptop motherboard

Lenovo ThinkCentre M920Q NM-B551

BIOS
Board code
NM-B551
Platform
EQ370
Made by
LCFC
Revisions
Rev 1.0
Files
5
Updated

Lenovo ThinkCentre M920Q NM-B551 is a laptop motherboard designed by LCFC and used in the Lenovo ThinkCentre M920Q, Lenovo IQ3X0IL and Lenovo ThinkCentre M720Q.

The catalog has 5 BIOS files for it, posted between 2021 and 2024. 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.

BIOS notes: file names mention 8 MB and 16 MB chip sizes. 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 EQ370.

Compatible models

Files for Lenovo ThinkCentre M920Q NM-B551

BIOS and firmware 5 All bios and firmware →

Notes from the source posts

  • IQ3X0IL REV 1.0 2018-04-03

Frequently asked questions

Which laptops use the NM-B551 motherboard?
File names in the catalog tie NM-B551 to the Lenovo ThinkCentre M920Q, Lenovo IQ3X0IL and Lenovo ThinkCentre M720Q. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of NM-B551 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.
What should I check before flashing the NM-B551 BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 8 MB and 16 MB images; the dump size must match your 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