Which motherboard fits the Lenovo IdeaPad Flex 5 14ITL05? OEM part numbers

12 motherboards are documented for the Lenovo IdeaPad Flex 5 14ITL05: 5B21B33119, 5B21B33120, 5B21B33121, 5B21B33122, 5B21B33123 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
5B21B33119	Lenovo System board, 82HS platform, WIN I31115G4, UMA graphics, 4G 5B21B33119	Lenovo description: "System board, 82HS platform, WIN I31115G4, UMA graphics, 4G memory". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33120	Lenovo BDPLANAR MB W 82HS WIN 7505 UMA 4G 5B21B33120	Lenovo description: "BDPLANAR MB W 82HS WIN 7505 UMA 4G". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33121	Lenovo System board, 82HS platform, WIN I31115G4, UMA graphics, 8G 5B21B33121	Lenovo description: "System board, 82HS platform, WIN I31115G4, UMA graphics, 8G memory". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33122	Lenovo System board, 82HS platform, WIN I51135G7, UMA graphics, 8G 5B21B33122	Lenovo description: "System board, 82HS platform, WIN I51135G7, UMA graphics, 8G memory". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33123	Lenovo System board, 82HS platform, WIN I71165G7, UMA graphics, 8G 5B21B33123	Lenovo description: "System board, 82HS platform, WIN I71165G7, UMA graphics, 8G memory". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33124	Lenovo System board, 82HS platform, WIN I51135G7, UMA graphics, 12G 5B21B33124	Lenovo description: "System board, 82HS platform, WIN I51135G7, UMA graphics, 12G memory". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33125	Lenovo System board, 82HS platform, WIN I71165G7, UMA graphics, 12G 5B21B33125	Lenovo description: "System board, 82HS platform, WIN I71165G7, UMA graphics, 12G memory". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33126	Lenovo System board, 82HS platform, WIN I51135G7, UMA graphics, 16G 5B21B33126	Lenovo description: "System board, 82HS platform, WIN I51135G7, UMA graphics, 16G memory". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33127	Lenovo MB W 82HS WIN I51135G7 DIS2G16G 5B21B33127	Lenovo description: "MB W 82HS WIN I51135G7 DIS2G16G". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B33128	Lenovo Lenovo BDPLANAR MB W 82HS WIN I71165G7 DIS2G16G 5B21B33128	Lenovo description: "Lenovo BDPLANAR MB W 82HS WIN I71165G7 DIS2G16G". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B38543	Lenovo MB W 82HS WIN I71165G7 UMA 16G 5B21B38543	Lenovo description: "MB W 82HS WIN I71165G7 UMA 16G". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5B21B48788	Lenovo MB W 82HS WIN 7505 UMA 8G 5B21B48788	Lenovo description: "MB W 82HS WIN 7505 UMA 8G". OEM documentation only; not bench-tested.	OEM documented	2026-11-04

Where do these Lenovo IdeaPad Flex 5 14ITL05 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 Flex 5 14ITL05?

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 Flex 5 14ITL05.

Other parts for the IdeaPad Flex 5 14ITL05

Service Part (225) · Screw Kit (2) · Power Adapter (30) · Keyboard (378) · Screen (5) · Power Cord (35) · Stylus (4) · SSD (15) · Wireless Card (2) · Cable (4) · Display Cable (1) · Heat Sink (2) · Fan (3) · Touchpad (3) · Hinge (3) · I/O Board (1) · Battery (4) · Display Back Cover (6) · Bracket (2) · Camera (1) · Speakers (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model lenovo-ideapad-flex-5-14itl05) or the keyless JSON API.