Which motherboard fits the HP ProBook 450 G8? OEM part numbers

12 motherboards are documented for the HP ProBook 450 G8: M21684-xx1, M21686-xx1, M21688-xx1, M21690-xx1, M21692-xx1 and 7 more. 12 of 12 come from OEM documentation (kaas.hpcloud.hp.com, partsurfer.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old motherboard and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
M21684-xx1	HP Motherboard M21684-xx1	HP spare part: System board, Intel Core i3-1115G4 processor. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21686-xx1	HP System board, Intel Core i5-1145G7 processor M21686-xx1	HP spare part: System board, Intel Core i5-1145G7 processor. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21688-xx1	HP System board, Intel Core i5-1135G7 processor M21688-xx1	HP spare part: System board, Intel Core i5-1135G7 processor. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21690-xx1	HP System board, Intel Core i7-1185G7 processor M21690-xx1	HP spare part: System board, Intel Core i7-1185G7 processor. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21692-xx1	HP System board, Intel Core i7-1165G7 processor M21692-xx1	HP spare part: System board, Intel Core i7-1165G7 processor. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21696-xx1	HP Motherboard M21696-xx1	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21698-xx1	HP Motherboard M21698-xx1	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21702-xx1	HP Motherboard M21702-xx1	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21704-xx1	HP Motherboard M21704-xx1	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21706-xx1	HP Motherboard M21706-xx1	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
M21708-xx1	HP Motherboard M21708-xx1	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
N09526-601	HP motherboard N09526-601	configuration-specific: 2 of 8 checked SKUs. Only the listed SKUs/configurations are evidenced; not a universal model fit. Saved PartSurfer BOM; no HP fetch. OEM documentation only; not bench-tested.	OEM documented	2026-10-29

Where do these HP ProBook 450 G8 motherboard part numbers come from?

12 of 12 fits are from OEM documentation (kaas.hpcloud.hp.com, partsurfer.hp.com); each row links its source. Last checked 2026-11-12.

Are these motherboards tested in the HP ProBook 450 G8?

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 ProBook 450 G8.

Other parts for the HP ProBook 450 G8

Power Adapter (8) · Battery (2) · Heat Sink (2) · Fan (2) · Bottom Cover (2) · Speakers (1) · Fingerprint Reader (2) · Cable (2) · Hinge (1) · Display Cable (1) · Screen (8) · Keyboard (7) · Display Back Cover (3) · Display Bezel (4) · Touchpad (1) · Camera (2) · RTC Battery (1) · Power Cord (35) · Wireless Card (4) · SSD (8) · I/O Board (2) · Microphone (1) · Memory (3) · Service Part (4) · Antenna (1) · Screw Kit (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-450-g8) or the keyless JSON API.