Lenovo IdeaCentre K415 - Manual (Page 45)

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User Guide
Identifying parts on the system board
The system board (also known as the “mainboard” or “motherboard”) is the main
circuit board in your computer. It provides basic computer functions and supports
a variety of devices that are factory-installed or that you can install later.
The following illustrations show the locations of the different parts on the system
board.
Lenovo K410
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12V power connector Microprocessor and heat sink
Microprocessor fan header Memory slots (2)
Thermal sensor header Power connector
Battery SATA connectors (3)