Item Component Spare part number
  Equipped with an Intel Core i5-8250U processor, graphics subsystem with UMA memory, 8-GB 
of system memory, and a Windows operating system
939647-601
  Equipped with an Intel Core i5-8250U processor, graphics subsystem with UMA memory, 8-GB 
of system memory, and a non-Windows operating system
939647-001
  Equipped with an Intel Core i5-8250U processor, graphics subsystem with 2-GB discrete 
memory, 4-GB of system memory, and a Windows operating system
939649-601
  Equipped with an Intel Core i5-8250U processor, MX150 graphics subsystem with 2-GB 
discrete memory, 4-GB of system memory, and a non-Windows operating system
939649-001
  Equipped with an Intel Core i5-8250U processor, graphics subsystem with 2-GB discrete 
memory, 8-GB of system memory, and a Windows operating system
939650-601
  Equipped with an Intel Core i5-8250U processor, MX150 graphics subsystem with 2-GB 
discrete memory, 8-GB of system memory, and a non-Windows operating system
939650-001
  Equipped with an Intel Core i3-7100U 2.40-GHz dual core processor (2133-MHz FSB, 3.0-MB L3 
cache, 15-W), an Intel HD Graphics 620 graphics subsystem with UMA video memory, 4-GB of 
system memory, and the Windows 10 operating system
926311-601
  Equipped with an Intel Core i3-7100U 2.40-GHz dual core processor (2133-MHz FSB, 3.0-MB L3 
cache, 15-W), an Intel HD Graphics 620 graphics subsystem with UMA video memory, 4-GB of 
system memory, and a non-Windows operating system
926311-001
  System board retention hooks (2, not illustrated) 928493-001
  Heat sink (includes replacement thermal material):
(11) For use only on computer models equipped with a graphics subsystem with discrete memory 939283-001
(12) For use only on computer models equipped with a graphics subsystem with UMA memory 939284-001
(13) I/O bracket, left side 928467-001
(15) I/O bracket, right side 928468-001
(14) Wireless Antenna Kit (includes left and right wireless antenna cables and transceivers):
  For use only on computer models equipped with a graphics subsystem with discrete memory 937093-001
  For use only on computer models equipped with a graphics subsystem with UMA memory 936025-001
(16) Rear speakers (include cables):
  For use only on computer models equipped with a graphics subsystem with discrete memory 928527-001
  For use only on computer models equipped with a graphics subsystem with UMA memory 928528-001
(17) Bottom cover:
  In natural silver nish for use only on computer models equipped with a graphics subsystem 
with discrete memory
928446-001
  In natural silver nish for use only on computer models equipped with a graphics subsystem 
with UMA memory
928448-001
  In silk gold nish for use only on computer models equipped with a graphics subsystem with 
discrete memory
928445-001
  In silk gold nish for use only on computer models equipped with a graphics subsystem with 
UMA memory
928447-001
  Bottom cover retention hooks (2, not illustrated):
  For use only on computer models equipped with a graphics subsystem with discrete memory 928491-001
Computer components 21