BIOS WORLDLenovo (LCFC) Y550 N18P-G61G62 NM-C921 MB · Schematic (83 pages)
File name: Y550_N18P-G61G62_NM-C921_MB.pdf
Lenovo (LCFC) Y550 N18P-G61G62 NM-C921 MB — Schematic, 83 pages. Main chips: IT8226E / IT8176 / IT8227E (EC), W25Q128JVSIQ / W25Q80EWSNIG / W25Q80 (BIOS flash), FH82HM470 (CPU), N18P-FCBGA960 / N18P-G61 / GP107 (GPU). Covers: graphics, memory, CPU, keyboard / touchpad, USB, WLAN / Bluetooth.
- Type
- Schematic / document
- Size
- 2.3 MB
- Pages
- 83
- Added
- 2026-10-06
- Brand
- Lenovo (LCFC)
- Board
- NM-C921
- Also written as
- NMC921 · NM C921 · NMC 921 · NMC-921
- MD5
- A431689B601073BCD6F611308E448D35
- Found in
- Computers › Laptop › Lenovo ThinkPad › legion&L series › Legion5-15IMH05
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Main chips and parts
| Part | Function |
|---|---|
| IT8226E | EC (embedded controller) |
| IT8176 | EC (embedded controller) |
| IT8227E | EC (embedded controller) |
| IT8176FN-56A-BX | EC (embedded controller) |
| IT8227-LQFP128 | EC (embedded controller) |
| ITE8371LQFP | EC (embedded controller) |
| IT8227E-192CX | EC (embedded controller) |
| W25Q128JVSIQ | BIOS / SPI flash |
| W25Q80EWSNIG | BIOS / SPI flash |
| W25Q80 | BIOS / SPI flash |
| FH82HM470 | CPU / SoC |
| N18P-FCBGA960 | GPU |
| N18P-G61 | GPU |
| GP107 | GPU |
| N18P-G5 | GPU |
Text from the first pages
LCFC M/B H-Processor · Sub-board USB3.1 USB3.1 POWER · non-ECC) non-ECC) TBD · Right Left Back Back Page IT8176 · Card Port13 CRF · BUS BUS DDR4 · TPM Reserved · USB PCIe · DMI PCH Lake · 26mm*24mm EC Thermal Page · Intel FCBGA · ITE 52 Battery 66 · 1x Audio IIC USB2.0 · Reserved 59 conn SKU Page · KB RGB · Pad RGB for Port7 · VBIOS W25Q80 Page PCI-Express Lane · eDP Lane · SATA Memory Memory PCIe · Conn. PCIe Conn. PCIe Realtek USB2.0 · Int. Codec ALC3287 · nVidia Page redriver PDC · Conn. 58 conn · SPK Page DMIC · board Reader Port · USB Port2 Card · Type-C CC · Port part