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Item Description Spare part number
i5-2540M, 2.60 GHz (Turbo up to 3.30), dual-core processor, 3 MB L3 cache, 4 threads, 35
W
657410-001
i5-2520M, 2.50 GHz (Turbo up to 3.20), dual-core processor, 3 MB L3 cache, 4 threads, 35
W
657409-001
(18) System board (includes replacement thermal material and VGA support bracket)
For use with dual-core processors in all countries except China and Ukraine 652637-001
(Alcor chip upgrade) For use with dual-core processors in all countries except China and
Ukraine
684318-001
For use with quad-core processors in all countries except China and Ukraine 652638-001
(Alcor chip upgrade) For use with quad-core processors in all countries except China and
Ukraine
684319-001
For use with dual-core processors in China and Ukraine only 656213-002
(Alcor chip upgrade) For use with dual-core processors in China and Ukraine only 684320-001
For use with quad-core processors in China and Ukraine only 656214-002
(Alcor chip upgrade) For use with quad-core processors in China and Ukraine only 684321-001
(19) Video card fan/heat sink assembly
For use in computers with AMD FirePro M5950 and NVIDIA Quadro 1000M graphics cards 652675-001
For use in computers with AMD FirePro M5950 for eSTAR 670940-001
For use in computers with NVIDIA Quadro 2000M graphics cards 652677-001
(20) Battery latch (includes latch, knob, and spring)
NOTE: The battery latch is included with the base enclosure, spare part number
652649-001.
(21) Processor heat sink
NOTE: The processor heat sink is included with the video card fan/heat sink assembly,
spare part numbers 652675-001 and 652677-001.
For use with AMD FirePro M5950 and NVIDIA Quadro 1000M graphics cards 652675-001
For use with NVIDIA Quadro 2000M graphics cards 652677-001
(22) Service access cover latch
NOTE: The service access cover latch is included with the base enclosure, spare part
number 652649-001.
(23) Security lock
NOTE: The security lock is included with the base enclosure assembly, spare part
number 652649-001.
(24) Audio/USB 3.0 board 652668-001
(25) ExpressCard assembly
For use in models without the Alcor chip upgrade 652680-001
For use in models with the Alcor chip upgrade 684793-001
(26) VGA port 652656-001
24 Chapter 3 Illustrated parts catalog