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System board
NOTE: All system board spare part kits include replacement thermal material.
Description Spare part number
System board for use in models with Intel Core i7 4500u processors:
Non-Windows 8 models 727772-001
Windows 8 Standard models 727772-501
Windows 8 Professional models 727772-601
System board for use in models with Intel Core i5 4250u processors:
Non-Windows 8 models 727771-001
Windows 8 Standard models 727771-501
Windows 8 Professional models 727771-601
System board for use in models with Intel Core i5 4200u processors:
Non-Windows 8 models 727770-001
Windows 8 Standard models 727770-501
Windows 8 Professional models 727770-601
System board for use in models with Intel Core i3 4010u processors:
Non-Windows 8 models 727769-001
Windows 8 Standard models 727769-501
Windows 8 Professional models 727769-601
Before removing the system board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 35).
5. Remove the following components:
a. Service door (see
Service door on page 43).
b. Hard drive (see
Hard drive on page 40)
c. Keyboard (see
Keyboard on page 37)
d. Top cover (see
Top cover on page 50)
Component replacement procedures
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