Specifications

Spare part number Description
744021-501 System board for use only on computer models equipped with discrete memory, WWAN
capability, and the Windows 8 Standard operating system (includes replacement thermal material)
744021-601 System board for use only on computer models equipped with discrete memory, WWAN
capability, and the Windows 8 Professional operating system (includes and replacement
thermal material)
744022-001 System board for use only on computer models equipped with discrete memory, a modem,
WWAN capability (includes replacement thermal material)
744022-501 System board for use only on computer models equipped with discrete memory, WWAN
capability, a modem, and the Windows 8 Standard operating system (includes replacement
thermal material)
744022-601 System board for use only on computer models equipped with shared memory, WWAN capability,
a modem, and the Windows 8 Professional operating system (includes and replacement
thermal material)
744715-001 System board for use only on computer models equipped with shared memory, without WWAN
capability (includes replacement thermal material)
744715-501 System board for use only on computer models equipped with shared memory, without WWAN
capability, and the Windows 8 Standard operating system (includes replacement thermal material)
744715-601 System board for use only on computer models equipped with shared memory, without WWAN
capability, and the Windows 8 Professional operating system (includes and replacement
thermal material)
744820-001 Blu-ray ROM DVD±RW Combo Drive
744821-001 DVD-ROM 9.5-mm Drive
744822-001 DVD-ROM SuperMulti 9.5-mm Drive
745883-001 For use only computer models with shared memory and WWAN capability
745883-501 For use only on computer models with shared memory, the Windows 8 Standard operating
system, and WWAN capability
745883-601 For use only on computer models with shared memory, the Windows 8 Professional operating
system, and WWAN capability
745884-001 For use only computer models equipped with shared memory without WWAN capability
745884-501 For use only on computer models equipped with shared memory and the Windows 8 Standard
operating system without WWAN capability
745884-601 For use only on computer models equipped with shared memory, the Windows 8 Professional
operating system without WWAN capability
745887-001 System board for use only on 15.6-in models with shared memory, WWAN capability (includes
replacement thermal material)
745887-501 System board for use only on 15.6-in models with shared memory, WWAN capability, and the
Windows 8 Standard operating system (includes replacement thermal material)
745887-601 System board for use only on 15.6-in models with shared memory, WWAN capability, and the
Windows 8 Professional operating system (includes and replacement thermal material)
745888-001 System board for use only on 15.6-in models with shared memory, without WWAN capability
(includes replacement thermal material)
745888-501 System board for use only on 15.6-in models with shared memory, without WWAN capability, and
the Windows 8 Standard operating system (includes replacement thermal material)
54 Chapter 3 Illustrated parts catalog