Identifying parts on the system board
The system board (sometimes called the planar 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.
Lenovo H505s
21 3
4
5
6
78
11
101213
9
Microprocessor and heat sink Microprocessor fan header
Memory slots (2) Power connector
Thermal sensor header Front panel connector
Battery
SATA connectors (2)
Mini PCI-E slot Front USB connectors (2)
Clear CMOS jumper PCI express X 1 adapter slot
Front audio connector
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