Which motherboard fits the HP Chromebook 14 G6? OEM part numbers

4 motherboards are documented for the HP Chromebook 14 G6: L90421-001, L90423-001, L90426-001, L90427-001. 4 of 4 come from OEM documentation (partsurfer.hp.com); last checked 2026-10-28. Not bench-tested: match the number on your old motherboard and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
L90421-001	HP motherboard L90421-001	CPU, LPDDR4 memory and eMMC are on the board; PartSurfer "With heatsink" (MSG Table 3-1). Match exact CPU/RAM/eMMC. Chrome OS board. PartSurfer OrderFlag 0 on 1A716UT (orderability not confirmed by PartSurfer). Configuration-specific: 1/8 checked SKUs. Match your product number or the original part number. OEM parts list only; not bench-tested.	OEM documented	2026-10-28
L90423-001	HP motherboard L90423-001	CPU, LPDDR4 memory and eMMC are on the board; PartSurfer "With heatsink" (MSG Table 3-1). Match exact CPU/RAM/eMMC. Chrome OS board. PartSurfer OrderFlag 0 on 1A717UT (orderability not confirmed by PartSurfer). Configuration-specific: 1/8 checked SKUs. Match your product number or the original part number. OEM parts list only; not bench-tested.	OEM documented	2026-10-28
L90426-001	HP motherboard L90426-001	CPU, LPDDR4 memory and eMMC are on the board; PartSurfer "With heatsink" (MSG Table 3-1). Match exact CPU/RAM/eMMC. Chrome OS board. PartSurfer OrderFlag 0 on 28R74US (orderability not confirmed by PartSurfer). Configuration-specific: 1/8 checked SKUs. Match your product number or the original part number. OEM parts list only; not bench-tested.	OEM documented	2026-10-28
L90427-001	HP motherboard L90427-001	CPU, LPDDR4 memory and eMMC are on the board; PartSurfer "With heatsink" (MSG Table 3-1). Match exact CPU/RAM/eMMC. Chrome OS board. PartSurfer OrderFlag 0 on 1A749UT, 9UQ94AA (orderability not confirmed by PartSurfer). Configuration-specific: 2/8 checked SKUs. Match your product number or the original part number. OEM parts list only; not bench-tested.	OEM documented	2026-10-28

Where do these HP Chromebook 14 G6 motherboard part numbers come from?

4 of 4 fits are from OEM documentation (partsurfer.hp.com); each row links its source. Last checked 2026-10-28.

Are these motherboards tested in the HP Chromebook 14 G6?

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 HP Chromebook 14 G6.

Other parts for the HP Chromebook 14 G6

Power Adapter (1) · Battery (1) · Display Bezel (2) · Display Cable (4) · Camera (1) · Hinge (1) · Keyboard (2) · Screen (4) · Bottom Cover (1) · Speakers (1) · Touchpad (2) · Wireless Card (1) · Display Back Cover (1) · Cable (1) · RTC Battery (1) · I/O Board (1) · Power Cord (2) · Bracket (2) · Screw Kit (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-chromebook-14-g6) or the keyless JSON API.