Which motherboard fits the Lenovo IdeaPad 3 15IAU7? OEM part numbers

12 motherboards are documented for the Lenovo IdeaPad 3 15IAU7: 5B21F28593, 5B21F28594, 5B21F28595, 5B21F28596, 5B21F28597 and 7 more. 12 of 12 come from OEM documentation (pcsupport.lenovo.com); last checked 2026-11-04. Not bench-tested: match the number on your old motherboard and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
5B21F28593	Lenovo Lenovo BDPLANAR MBL82RJ WIN I71255UUMA8GRM 5B21F28593	Lenovo description: "Lenovo BDPLANAR MBL82RJ WIN I71255UUMA8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28594	Lenovo MBL82RJ NOK I71255UUMA8GRM 5B21F28594	Lenovo description: "MBL82RJ NOK I71255UUMA8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28595	Lenovo Lenovo BDPLANAR MBL82RJ WIN I51235UUMA8GRM 5B21F28595	Lenovo description: "Lenovo BDPLANAR MBL82RJ WIN I51235UUMA8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28596	Lenovo MBL82RJ NOK I51235UUMA8GRM 5B21F28596	Lenovo description: "MBL82RJ NOK I51235UUMA8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28597	Lenovo MBL82RJ WIN I31215U_UMA_4GRM 5B21F28597	Lenovo description: "MBL82RJ WIN I31215U_UMA_4GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28598	Lenovo MBL82RJ NOK I31215U_UMA_4GRM 5B21F28598	Lenovo description: "MBL82RJ NOK I31215U_UMA_4GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28599	Lenovo MBL82RJ WIN 8505_UMA_4GRM 5B21F28599	Lenovo description: "MBL82RJ WIN 8505_UMA_4GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28600	Lenovo MBL82RJ NOK 8505_UMA_4GRM 5B21F28600	Lenovo description: "MBL82RJ NOK 8505_UMA_4GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28601	Lenovo Lenovo BDPLANAR MBL82RJ WIN I31215U_UMA_8GRM 5B21F28601	Lenovo description: "Lenovo BDPLANAR MBL82RJ WIN I31215U_UMA_8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28602	Lenovo MBL82RJ NOK I31215U_UMA_8GRM 5B21F28602	Lenovo description: "MBL82RJ NOK I31215U_UMA_8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28603	Lenovo MBL82RJ WIN 8505_UMA_8GRM 5B21F28603	Lenovo description: "MBL82RJ WIN 8505_UMA_8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21F28604	Lenovo MBL82RJ NOK 8505_UMA_8GRM 5B21F28604	Lenovo description: "MBL82RJ NOK 8505_UMA_8GRM". OEM documentation only; not bench-tested.	OEM documented	2026-11-04

Where do these Lenovo IdeaPad 3 15IAU7 motherboard part numbers come from?

12 of 12 fits are from OEM documentation (pcsupport.lenovo.com); each row links its source. Last checked 2026-11-04.

Are these motherboards tested in the Lenovo IdeaPad 3 15IAU7?

No. Fits come from manufacturer or retailer documentation and are not bench-tested. Check the part number on your old part and any listed constraint.

All documented parts for the IdeaPad 3 15IAU7.

Other parts for the IdeaPad 3 15IAU7

Camera (3) · Keyboard (378) · Service Part (120) · Power Cord (38) · SSD (30) · Battery (16) · Screw Kit (9) · Screen (10) · Wireless Card (4) · Heat Sink (3) · Memory (16) · Fan (4) · Display Bezel (3) · I/O Board (1) · Bracket (1) · Display Back Cover (3) · Hard Drive (6) · Power Adapter (3) · RTC Battery (1) · Hinge Cover (1) · Cable (7) · Hinge (2) · Display Cable (2)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model lenovo-ideapad-3-15iau7) or the keyless JSON API.