MSG mirror: system board includes processor, heat sink and replacement thermal material (PartSurfer "w/HTSK"); memory and eMMC are on-board. Match exact CPU/RAM/eMMC; heat sink not sold separately. nSDC ("no SD card") board for 428G4UT (38Y27AV), pairs with nSDC base enclosure M75158-001; not in the first-edition MSG mirror. notebookparts: "HP ChromeBook 11 G8 EE Cel N4020 8GB 32GB eMMC Motherboard M75154-001". Configuration-specific: 1/8 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 1 of 8 checked product numbers (428G4UT; 1 of 4 North American US/UT SKUs; product name "HP Chromebook 11 G8 Education Edition (38Y27AV)"). HP description: "SPS-MB UMA CelN4020 8G32GeMMC w/HTSKnSDC". Keyword: Unknown Keyword. OrderFlag: 1. (via MM-LOOP-047).