Maintenance and Service Guide

Table 3-1 Computer major components and their descriptions (continued)
Item Component Spare part number
NOTE: All system board spare part kits include replacement thermal material.
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating systems
xxxxxx-601: Windows operating system
For use in models with discrete graphics memory:
● Intel Core i7-8565U processor and 4 GB Radeon 535 graphics memory L50975-xx1
● Intel Core i5-8265U processor and 2 GB Radeon 535 graphics memory L50974-xx1
For use in models with UMA graphics memory:
● Intel Core i7-8565U processor L50973-xx1
● Intel Core i5-8265U processor L50972-xx1
● Intel Core i3-8145U processor L50971-xx1
Thermal pad, for use in models with discrete graphics memory (not illustrated) L21302-001
Heat sink (includes replacement thermal material)
(12) For use in models with discrete graphics L51348-001
(13) For use in models with UMA graphics L51347-001
(14) Fan L51349-001
(15) Solid-state drive (M.2)
512 GB, PCIe L51361-001
256 GB, PCIe L51360-001
128 GB, SATA-3, TLC L51359-001
16 GB, PCIe (Optane Memory Module) L55350-001
(16) WLAN module
Realtek RTL8822BE 802.11ac 2 × 2 Wi-Fi + Bluetooth 4.2 924813-855
Realtek RTL8821CE 802.11ac 1 × 1 Wi-Fi + Bluetooth 4.2 L17365-005
Intel Wireless-AC 9560 802.11ac 2 × 2 Wi-Fi + Bluetooth 5 L22634-005
(17) Memory cover L51104-001
(18) Memory module (DDR4)
8 GB 937236-855
4 GB L10598-855
(19) Hard drive
2 TB, 5400 rpm 912487-858
1 TB, 5400 rpm L30422-007
500 GB, 5400 rpm 778186-007
(20) Battery (3-cell, 41 Whr) L11119-857
18 Chapter 3 Illustrated parts catalog