NM-B731 is a LCFC (Lenovo) motherboard used in Lenovo devices. Enginerys has 4 schematics, 3 boardviews and 11 BIOS dumps for this board, collected from public Telegram channels.
Check that NM-B731 matches the number printed on your PCB, including the revision. Where to find it →
NM-B731 schematics
- EG430 DIS AMD NMB731 V10 201801091000Schematic · NM-B731 · 3.03 MB · 5 May 2025Schematic pdf3.03 MB
- Lenovo 330 14IKB NM B731 REV0.1Schematic · NM-B731 · 4.83 MB · 28 Apr 2025Schematic pdf4.83 MB
- LENOVO 330-14IKB -EG523 MB NM-B731 REV0.1 PDFSchematic · NM-B731 · 4.83 MB · 5 Feb 2023Schematic pdf4.83 MB
- LENOVO 330-14IKB -EG523 MB NM-B731 REV0.1 PDF
Schematic in PDF for the Lenovo IdeaPad 330-14IKB, board EG523 with number NM-B731 at revision 0.1, archived as RAR of 3.53 MB.
Schematic · NM-B731 · 3.53 MB · 31 Jan 2023Schematic rar3.53 MB
NM-B731 boardviews
- EG430 NM-B731 (REV 1.0) (BDV)Boardview · NM-B731 · 2.42 MB · 8 Feb 2024Boardview zip2.42 MB
- EG430 NM-B731 (REV 1.0) (BDV)Boardview · NM-B731 · 6.46 MB · 16 Nov 2022Boardview tvw6.46 MB
- EG430 NM-B731 (REV 1.0) (BDV)
Boardview for the Lenovo EG430 motherboard NM-B731, revision 1.0, distributed as a 2.49 MB ZIP.
Boardview · NM-B731 · 2.49 MB · 5 Jan 2022Boardview zip2.49 MB
NM-B731 BIOS dumps
- LENOVO 330 14IKB Type 81G2 NM B731 REV 1 0 BIOS & KBEC telegramBIOS · NM-B731 · 5.06 MB · 23 Sept 2025BIOS zip5.06 MB
- EG430 NM B731 REV 1 0 2018 01 10 BIOS telegram BIOS Repair 2025BIOS · NM-B731 · 5.47 MB · 20 Sept 2025BIOS zip5.47 MB
- EG430 NM B731 REV 1.0 ORIG telegram BIOS Repair-2025-09-16BIOS · NM-B731 · 5.47 MB · 20 Sept 2025BIOS zip5.47 MB
- EG430 NM B731 REV 1 1 0 ORIG telegram BIOS Repair 2025 09 16BIOS · NM-B731 · 5.47 MB · 20 Sept 2025BIOS zip5.47 MB
- EG430 NM B731 REV 1.0 ORIGBIOS · NM-B731 · 8.00 MB · 12 May 2025BIOS bin8.00 MB
- LENOVO 330-14IKB Type 81G2 - NM-B731 REV 1.0 BIOS & KBEC
BIOS together with KBEC (keyboard and embedded controller firmware) for the Lenovo IdeaPad 330-14IKB, machine type 81G2, board NM-B731 revision 1.0, in a 4.77 MB RAR.
BIOS · NM-B731 · 4.77 MB · 23 Sept 2023BIOS rar4.77 MB - EG430 NM-B731 REV 1.0 2018-01-10 BIOS
BIOS for the Lenovo EG430 board NM-B731, revision 1.0, dated 2018-01-10 in the name, supplied as a 5.38 MB ZIP.
BIOS · NM-B731 · 5.38 MB · 5 Jan 2022BIOS zip5.38 MB - EG430 NM B731 REV 1.0 ORIGBIOS · NM-B731 · 8.00 MB · 16 Apr 2021BIOS bin8.00 MB
- EG430 NM B731 REV 1.0 ORIG (Luirons Bios)BIOS · NM-B731 · 5.05 MB · 23 Feb 2021BIOS rar5.05 MB
- EG430 NM B731 REV 1 (1).0 ORIG (Luirons Bios)BIOS · NM-B731 · 5.05 MB · 23 Feb 2021BIOS rar5.05 MB
- EG430 NM B731 REV 1.0 ORIG
Original BIOS dump for a Lenovo board marked NM-B731, revision 1.0, labelled EG430 in the name and stored as a 5.33 MB ZIP file.
BIOS · NM-B731 · 5.33 MB · 21 Jul 2020BIOS zip5.33 MB
Questions about NM-B731
Is there a schematic for NM-B731?
Yes. Enginerys lists 4 schematic files for NM-B731. Each entry links to the Telegram post where the PDF can be downloaded.
Is there a boardview for NM-B731?
Yes, 3 boardview files are listed. Open them with OpenBoardView or the viewer named on the file page.
Who makes the NM-B731 board?
NM-B731 follows the LCFC (Lenovo) numbering scheme (NM-xxxx). It is found in Lenovo devices.