-601 = Windows-OS system board (HP convention; -001 = non-Windows). CPU soldered; RAM is socketed SODIMM. PartSurfer OrderFlag 0 on the saved BOMs (orderability not confirmed). Match the exact board PN/CPU. Configuration-specific: 4/8 checked SKUs. Match your product number or the original part number. OEM parts list only; not bench-tested.
Source notes
Saved HP PartSurfer product BOM(s) on box (partsurfer/cache_<SKU>.json, captured before this loop; no new HP fetch, HP OEM cool-down ON). Listed for 4 of 8 checked product numbers (3V3B1US, 4C9J4UC, 421R7UC, 3A7W3LS; US-basis SKUs: 3V3B1US, 421R7UC; product name "HP ProBook 640 G7 Notebook PC (165S4AV)"). HP description: "SPS-MB UMA i5-10310U 640 G7 WIN". Keyword: Unknown Keyword. OrderFlag: 0. (via MM-LOOP-045).