Description Spare part number
Intel Core i3-5020U processor; models without WWAN 824119-xxx
Intel Core i3-5010U processor; WWAN models 798065-xxx
Intel Core i3-5010U processor; models without WWAN 798060-xxx
Intel Core i3-5005U processor; WWAN models 798064-xxx
Intel Core i3-5005U processor; models without WWAN 798059-xxx
Intel Core i3-4030U processor; WWAN models 768221-xxx
Intel Core i3-4030U processor; models without WWAN 768215-xxx
Intel Core i3-4005U processor 778496-xxx
Intel Pentium 3825U processor; models without WWAN 824120-xxx
Intel Pentium 3805U processor; models without WWAN 815644-xxx
Intel Celeron 3215U processor; models without WWAN 824252-xx
Intel Celeron 3205U processor; models without WWAN 798058-xxx
Intel Celeron 2957U processor; models without WWAN 768214-xxx
Before removing the system board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst 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 30).
5. Remove the following components:
a. Service door (see Service door on page 31).
b. Hard drive (see Hard drive on page 32)
c. Keyboard (see Keyboard on page 40)
d. Top cover (see Top cover on page 48)
When replacing the system board, be sure to remove the following components from the defective system
board and install on the replacement system board:
●
Memory modules (see Memory modules on page 34)
●
WLAN/Bluetooth module (see WLAN/Bluetooth combo card on page 36)
●
WWAN module (see WWAN module on page 38)
Remove the system board:
1. Position the computer upright with the front toward you.
Component replacement procedures 61
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