Table 3-1 Computer major component descriptions and part numbers
Item Component Spare part number
(1) Display assembly
NOTE: Display spare parts are available only as subcomponents. For spare part information, see
Display assembly subcomponents on page 20.
not available as a
spare part
(2) Top cover/keyboard
NOTE: For a detailed list of country codes, see Top cover with keyboard on page 57.
Not backlit M21740-xx1
Backlit, for use in privacy models M21741-xx1
Backlit M21742-xx1
(3) Power connector cable M21725-001
(4) Touchpad
NOTE: The touchpad cable is available in the Cable Kit as spare part number M21713-001.
M21999-001
(5) Speaker M21723-001
Heat sink (includes replacement thermal material)
(6) Discrete graphics models M21717-001
(7) UMA graphics models M21716-001
(8) Solid-state drive
1 TB, PCIe, TLC L85348-002
1 TB, locked M31024-001
512 GB, PCIe, value L85364-002
512 GB solid-state drive + 32 GB Optane memory L85366-002
256 GB, PCIe, value L85354-002
128 GB, PCIe, TLC M06792-002
(9) I/O board (includes cable)
NOTE: The I/O board cables are available in the Cable Kit as spare part number M21713-001. The
RJ-45 door is available in the Plastics Kit as spare part number M21714-001.
M21712-001
(10) RTC battery M34737-001
(11) Bottom cover
For use in models with discrete graphics memory M21721-001
For use in models with UMA graphics memory M21720-001
(12) System board (includes integrated processor)
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
Computer major components 19
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