System board
NOTE: The system board spare part kit includes replacement thermal material.
Description Spare part number
System boards for use in models without Windows 8:
Intel Core i7-4650U processor (1.70 GHz, 4-MB cache) 739583-001
Intel Core i7-4600U processor (1.80 GHz, 3-MB cache) 748354-001
Intel Core i5-4300U processor (1.90 GHz, 3-MB cache) 739580-001
Intel Core i5-4200U processor (1.60 GHz, 3-MB cache) 739579-001
System boards for use in Windows 8 models:
Intel Core i7-4650U processor (1.70 GHz, 4-MB cache) for use in models with Windows 8 Standard 739583-501
Intel Core i7-4650U processor (1.70 GHz, 4-MB cache) for use in models with Windows 8 Professional 739583-601
Intel Core i7-4600U processor (2.10 GHz, 4-MB cache) for use in models with Windows 8 Standard 748354-501
Intel Core i7-4600U processor (2.10 GHz, 4-MB cache) for use in models with Windows 8 Professional 748354-601
Intel Core i5-4300U processor (1.70 GHz, 3-MB cache) for use in models with Windows 8 Standard 739580-501
Intel Core i5-4300U processor (1.70 GHz, 3-MB cache) for use in models with Windows 8 Professional 739580-601
Intel Core i5-4200U processor (1.60 GHz, 3-MB cache) for use in models with Windows 8 Standard 739579-501
Intel Core i5-4200U processor (1.60 GHz, 3-MB cache) for use in models with Windows 8 Professional 739579-601
Before removing the system board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the bottom cover (see
Bottom cover on page 35)
5. Remove the keyboard (see
Keyboard on page 50)
6. Remove the heat sink/fan assembly (see
Heat sink/fan assembly on page 59)
7. Remove the battery (see
Battery on page 41).
NOTE: When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
SSD drive module (see
SSD drive on page 43)
●
Memory module (see
Memory module on page 44)
●
WWAN module (see
WWAN module on page 46)
●
WLAN module (see
WLAN module on page 48)
●
Heat sink (see
Heat sink/fan assembly on page 59)
Remove the system board:
Component replacement procedures 61
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