Which memory fits the HP ProBook 645 G1? OEM part numbers

4 memories are documented for the HP ProBook 645 G1: 691739-001, 691740-001, 693374-001, 835496-001. 4 of 4 come from OEM documentation (h10032.www1.hp.com); last checked 2026-11-04. Not bench-tested: match the number on your old memory and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
691739-001	HP Memory 691739-001	HP description: "2-GB PC3L 1600 memory module". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
691740-001	HP Memory 691740-001	HP description: "4-GB PC3L 1600 memory module". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
693374-001	HP Memory 693374-001	HP description: "8-GB PC3L 1600 memory module". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
835496-001	HP 8-GB PC3L Samsung-locked memory module 835496-001	HP description: "8-GB PC3L Samsung-locked memory module". OEM documentation only; not bench-tested.	OEM documented	2026-11-04

Where do these HP ProBook 645 G1 memory part numbers come from?

4 of 4 fits are from OEM documentation (h10032.www1.hp.com); each row links its source. Last checked 2026-11-04.

Are these memories tested in the HP ProBook 645 G1?

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 645 G1.

Other parts for the HP ProBook 645 G1

Service Part (48) · Keyboard (198) · Speakers (1) · Touchpad (10) · Fan (2) · Heat Sink (2) · Cable (3) · Bottom Cover (2) · Power Adapter (9) · Wireless Card (5) · Hard Drive (17) · RTC Battery (1) · Battery (4) · Camera (1) · Microphone (1) · SSD (16) · Display Cable (4) · Power Cord (16) · Screw Kit (1) · Motherboard (70) · Display Bezel (6) · Hinge (1) · Screen (14) · Card Reader (3) · Service Door (4) · Hinge Cover (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-645-g1) or the keyless JSON API.