Item Component Spare part number
  For use in Russia 745663-251
  For use in Saudi Arabia 745663-171
  For use in Slovenia 745663-BA1
  For use in South Korea 745663-AD1
  For use in Spain 745663-071
  For use in Sweden and Finland 745663-B71
  For use in Switzerland 745663-BG1
  For use in Taiwan 745663-AB1
  For use in Thailand 745663-281
  For use in Turkey 745663-141
  For use in the United Kingdom and Singapore 745663-031
  For use in the United States 745663-001
(4) Primary memory module (PC3L, 12800, 1600-MHz):
 8-GB 693374-001
 4-GB 691740-001
(5) Top cover (includes TouchPad, TouchPad cable, and TouchPad bracket) 734281-001
(6) Power button board (includes cable) 734285-001
(7) Function button board (includes cable and double-sided adhesive) 734284-001
(8) Fingerprint reader board (includes cable and double-sided adhesive) 734286-001
(9) ExpressCard assembly (includes activity LEDs and Thunderbolt port, Dual Mode
DisplayPort, and USB port)
734287-001
(10) Smart card reader (includes cable) 742159-001
(11) Audio/USB board (includes SD Card reader) 734288-001
(12) Fan/heat sink assembly (includes replacement thermal material):
  For use only with an NVIDIA Quadro K1100M NVIDIA N15P-Q1 graphics board,
spare part number 734276-001
734289-001
  For use only with an NVIDIA Quadro K610M NVIDIA N15M-Q2 graphics board,
spare part number 745325-001
734290-001
  For use only with an NVIDIA Quadro K2100M NVIDIA N15P-Q3 graphics board,
spare part number 734277-001
734291-001
(13) Processor (includes replacement thermal material):
  Intel Quad Core i7-4900MQ 2.80-GHz (SC turbo up to 3.80-GHz) processor (1600-
MHz FSB, 8.0-MB L3 cache, 47 W)
723523-002
  Intel Quad Core i7-4800MQ 2.70-GHz (SC turbo up to 3.70-GHz) processor (1600-
MHz FSB, 6.0-MB L3 cache, 47 W)
723524-002
26 Chapter 3   Illustrated parts catalog