Lenovo / ThinkPad / P Series

ThinkPad P51

ThinkPad P51 platform specifications based on Lenovo PSREF.

Scope
Product generation / platformPSREF verified
Machine Type
20HH / 20HJ / 20MM / 20MN
Model / MTM
184Official Models verifiedDirect specifications: Not collected
Search Japan marketplaces for ThinkPad P51Amazon JapanOpen external site in a new tabRakuten Ichiba (Japan)Open external site in a new tabYahoo! Shopping (Japan)Open external site in a new tabMercari (Japan)Open external site in a new tabYahoo! Auctions (Japan)Open external site in a new tabExternal sitesPR

Buying and service essentials

Verified in official sources

Check before buying

Model / MTM
Not collected184 Models entries verified
CPU / GPU
6th or 7th Generation Intel Core i7 / Intel Xeon E3 v5 or v66 CPU options / Intel HD Graphics 530 / Intel HD Graphics 630 / Intel HD Graphics P530 / Intel HD Graphics P630 / Platform options / dGPU: 2 options (configuration-dependent)
Display
15.6-inch / 1920x1080 / 3840x21603 platform options / Non-touch / Multi-touch
WWAN
Configuration-dependentRetrofit conditions apply

Upgrades and repair

Memory
DDR4-2400 / SocketedSO-DIMM: 4 / maximum 64 GB
Storage
2.5-inch 7mm SATA HDD / M.2 2280 PCIe NVMe SSD, single-sidedSATA 6Gb/s / PCIe NVMe 3.0 x4 / Maximum simultaneous devices 3 device(s)
Power
Slim tipAC adapter: 170 W

Motherboard and slot topology

Evidence confidence: not recorded
?

Shows the strength of the supporting evidence. It is not a performance score or recommendation. Full sources appear in the Evidence section below.

Memory implementation
DDR4-2400 / Socketed / SO-DIMM: 4
Storage form factor
2.5-inch 7mm SATA HDD / M.2 2280 PCIe NVMe SSD, single-sided
Maximum simultaneous devices
3 device(s)

Hardware Maintenance ManualOpen external site in a new tab

Specifications

CPU

Evidence confidence: high

CPU options for this platform / Intel6th or 7th Generation Intel Core i7 / Intel Xeon E3 v5 or v6

CPUIntegrated GPUCores / threadsBase frequencyMax frequency
Intel Core i7-6820HQOpen external site in a new tabIntel HD Graphics 5304 / 82.70 GHz3.60 GHz
Intel Xeon E3-1505M v5Open external site in a new tabIntel HD Graphics P5304 / 82.80 GHz3.70 GHz
Intel Core i7-7700HQOpen external site in a new tabIntel HD Graphics 6304 / 82.80 GHz3.80 GHz
Intel Core i7-7820HQOpen external site in a new tabIntel HD Graphics 6304 / 82.90 GHz3.90 GHz
Intel Xeon E3-1505M v6Open external site in a new tabIntel HD Graphics P6304 / 83.00 GHz4.00 GHz
Intel Xeon E3-1535M v6Open external site in a new tabIntel HD Graphics P6304 / 83.10 GHz4.20 GHz

Graphics / GPU

Evidence confidence: high

dGPU options

GPUDedicated memorySelection conditions
NVIDIANVIDIA Quadro M12004 GBConfiguration-dependent
NVIDIANVIDIA Quadro M22004 GBConfiguration-dependent

These are platform configuration options, not the GPU installed in an individual MTM.

Memory

Evidence confidence: high
Type
DDR4-2400
Maximum capacity
64 GB
Physical slots
4
Implementation
DDR4-2400 / Socketed
Upgrade / replacement
Not recorded
Configuration constraints
  • Four DDR4 SO-DIMM sockets; dual-channel capable
  • ECC or non-ECC memory; ECC is supported only with a Xeon processor
  • System clocks down for processors with a lower-speed memory controller
Search Japan marketplaces for DDR4-2400Amazon JapanOpen external site in a new tabRakuten Ichiba (Japan)Open external site in a new tabYahoo! Shopping (Japan)Open external site in a new tabMercari (Japan)Open external site in a new tabYahoo! Auctions (Japan)Open external site in a new tabExternal sitesPR

Check the board layout in the HMMOpen external site in a new tab

Storage

Evidence confidence: high
Interface and form factor
SATA 6Gb/s / PCIe NVMe 3.0 x4
Supported form factors
  • 2.5-inch 7mm SATA HDD
  • M.2 2280 PCIe NVMe SSD, single-sided
Physical slots
Not recorded
Maximum simultaneous devices
3 device(s)
Upgrade / replacement
Not recorded
Configuration constraints / exclusions
  • The PSREF explicitly documents up to three drives as two M.2 SSDs and one HDD.
  • RAID 0 and RAID 1 are platform options.
Search Japan marketplaces for M.2 2280 NVMe SSDAmazon JapanOpen external site in a new tabRakuten Ichiba (Japan)Open external site in a new tabYahoo! Shopping (Japan)Open external site in a new tabMercari (Japan)Open external site in a new tabYahoo! Auctions (Japan)Open external site in a new tabExternal sitesPR
Search Japan marketplaces for 2.5-inch 7mm SATA SSDAmazon JapanOpen external site in a new tabRakuten Ichiba (Japan)Open external site in a new tabYahoo! Shopping (Japan)Open external site in a new tabMercari (Japan)Open external site in a new tabYahoo! Auctions (Japan)Open external site in a new tabExternal sitesPR

Check the SSD replacement procedure in the HMMOpen external site in a new tab

Display

Evidence confidence: high
Size
15.6-inch
Platform configuration options
configurationResolutionTouchPanel / brightnessSurface / features
FHD WVA
15.6-inch		1920x1080Non-touchWVA / 250 nitsanti-glare
UHD WVA
15.6-inch		3840x2160Non-touchWVA / 300 nitsanti-glare
FHD WVA touch
15.6-inch		1920x1080Multi-touchWVA / 220 nits10-point touch

Battery architecture

Evidence confidence: high
Architecture
Removable
Configuration options
  • Li-Polymer / 4-cell / 66 Wh
  • Li-Polymer / 6-cell / 90 Wh

Each row is a platform configuration option. Simultaneous installation is not inferred.

Power and AC adapter

Evidence confidence: high
Connector
Slim tip
Wattage
170 W

Wireless and WWAN

Evidence confidence: high
WLAN options
  • Intel Dual Band Wireless-AC 8260, 802.11ac 2x2
  • Intel Dual Band Wireless-AC 8265, 802.11ac 2x2
WWAN
Configuration-dependent
Retrofit / conditions
Retrofit conditions apply
WWAN options
  • Wireless WAN upgradable
  • Sierra Wireless EM7455 4G LTE-Advanced

Ports and docking

Evidence confidence: high
Ports
  • 4x USB 3.1 Gen 1, one Always On
  • USB-C / Thunderbolt 3
  • Mini DisplayPort 1.2a
  • HDMI 1.4b
  • Ethernet RJ-45
  • ExpressCard/34 slot
Docking support
  • Physical connector: Dock connector

Dimensions and weight

Evidence confidence: high
Non-touch models
377.4 × 252.3 × 24.5–29.4 mm
Touch models
377.4 × 252.3 × 25.8–30.7 mm
Non-touch, 4-cell battery
2.55 kg / By configuration
Non-touch, 6-cell battery
2.67 kg / By configuration
Multi-touch, 4-cell battery
2.82 kg / By configuration
Multi-touch, 6-cell battery
2.9 kg / By configuration

Official maintenance documentation and key procedures

Key procedures

Battery
p.71
Base cover
p.72
SSD / storage
p.72
Memory
p.77
Keyboard
p.78
Display assembly
p.90

Part number information

Part numbers and their relationships to this product or model are shown when verified in official Lenovo sources.

Official Model-listed parts

Lenovo listing verified

These 35 parts are listed directly for Model 20HH0004US in Lenovo Parts Lookup.

Model / MTM
20HH0004US
Model-listed parts
35
Parts with direct specs
5
Official source
Lenovo Parts Lookup
ComponentP/NLenovo-provided nameDirect Lenovo specificationsSubstitute references
AC アダプター (AD)45N0372Lenovo AC_ADAPTER 長方形 170W 2P ブラック
Plug
Rectangle
Capacity
170W
Pin
2
Safety
WW
Color
Black
4 (not expanded)
アンテナ (AN)00UR818WLAN WWAN Antenna kitNot confirmed—
外付けバッテリー (BA)00NY492拡張、6C、90Wh、リチウムイオン、LGCNot confirmed1 (not expanded)
ベゼル/サービスドア (BZ)00UR804Base big door cover,plastic,BlackNot confirmed—
Aカバー アセンブリー、LCD カバー アセンブリー (CA)01HY700LCD背面カバーASMNot confirmed—
CMOSバッテリー (CB)02K7078RTC,1C,3V,LION,CR2032Not confirmed11 (not expanded)
ケーブル、外部ケーブル、電源コード、USBケーブル、CRU可能内部ケーブル (CC)42T5008Lenovo 電源コード、US/CA、1M、2PNot confirmed12 (not expanded)
内蔵カード (CI)00NY649FRU LCD LED Board,P50Not confirmed—
WLAN (CL)01AX704Wireless,CMB,IN,8265 NV M2Not confirmed—
カメラ (CM)00HN375カメラ、720P、前面、MIC、WTB、ChnyNot confirmed3 (not expanded)
カバー (CO)01HY706シャーシ・アセンブリー、MgフレームNot confirmed—
カバー (CO)01HY709COVER, Base Cover ASM,metal,BlackNot confirmed—
内蔵ケーブル (CT)00UR826Cable,EDP,FHDNot confirmed—
内蔵ケーブル (CT)00UR831Cable,TouchpadNot confirmed—
内蔵ケーブル (CT)00UR832Cable,FPR,FPCNot confirmed—
内蔵ケーブル (CT)01HY710Cable,LED Camera,ICTNot confirmed1 (not expanded)
ファン/ 冷却アセンブリ (FA)00NY520WT1 用ファン + ヒートシンクNot confirmed2 (not expanded)
内蔵キーボード (KI)01HW200内蔵キーボード、英語、バックライトNot confirmed1 (not expanded)
スクリューキット/ラベルキット/その他 (KS)00NY399その他のラバーNot confirmed—
スクリューキット/ラベルキット/その他 (KS)01HY715ラベル・キットNot confirmed—
LCD部品 (LA)00UR822ヒンジ・キャップASMNot confirmed—
LCD部品 (LA)01HY703LCD Bezel,w/cameraNot confirmed—
LCDパネル (LP)00NY443AUO 15.6 FHD IPS AGのFRU
Size (Inch)
15.6
Resolution
FHD
Screen Type (Glare or Anti-Glare)
Anti-Glare
Touch
Non-Touch
Panel Type
IPS
Brightness (nit)
250
27 (not expanded)
M.2カード (M2)00UP440Lenovo SSD_ASM 512G,M.2,2280,PCIe3x4,Samsung,OPAL
Capacity (GB)
512
Form Factor
M.2 2280
Interface
PCIE3X4
Security
OPAL
144 (not expanded)
メカニカルアセンブリ (MA)00UR803ブラケット、RAM、金属製Not confirmed—
メカニカルアセンブリ (MA)00UR819ヒンジASM,FHDNot confirmed—
メカニカルアセンブリ (MA)00UR868MECH_ASM Tray,SSD,w/screw,NVMeNot confirmed—
メカニカルアセンブリ (MA)01HY707MECH_ASM Upper Case,w/FPR,w/o CSNot confirmed—
メモリー (MM)01AG710Lenovo MEMORY,8G,DDR4,2400,SODIMM,SAMSUNG
Capacity (GB)
8
Speed
DDR4 2400
Interface
SODIMM
123 (not expanded)
内蔵部品その他 (MN)00UR837Dummy Express card,PlasticNot confirmed—
内蔵部品その他 (MN)01HY714その他のキットNot confirmed—
外部部品その他 (MX)00UR898ダミーSCR、ブラック、プラスチックNot confirmed—
システムボード (PL)01AV359Lenovo BDPLANAR WIN,i7-7700,M1,4G,Y-TPM,RA
DPK
WIN
CPU
intelI77700HQ
GPU Type
DIS
GPU Name
NVIDIA Quadro M1200M
AMT
N-AMT
5 (not expanded)
RDVD/ RUSB (RC)5R30W06213Win10PROx64 Modular USNot confirmed—
内蔵スピーカー (SI)00UR807Speaker ASM,left rightNot confirmed—

This table contains parts listed directly for the displayed Model / MTM. It is not a product-wide compatibility list. Substitute identifiers are retained as counts and are not promoted to published parts in this breadth layer.

Model / MTM

184

Codes listed in Lenovo Models identify a relationship to this product. They do not establish exact CPU, memory, storage or other configuration details.

Model / MTM codes verified in official sources
184
Exact configuration data
Not collected

Enter a code to search the official Lenovo Models data for this product.

    Exact Model / MTM configuration data is not recorded. Specifications on this page are platform-level options.

    Evidence

    5 sources. Of 12 product claims, 12 are verified with high confidence.Display, battery and keyboard parts relationships each show their state as verified in official sources. Procedure coverage in official maintenance documentation is audited per product for major components.