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Identifying parts on the motherboard
The motherboard (sometimes called the planar or system board) is the main circuit board in your computer.
It provides basic computing functions and supports a variety of devices that are factory-installed or that
you can install later. The following illustration shows the location of connectors and components on the
front of the motherboard.
1. HDMI-out connector
12. TV jack 2 (Japan only)
2. HDMI-in connector
13. Card reader
3. USB 3.0 connector
14. Microphone connector
4. Ethernet connectorRJ45
15. Headphone connector
5. Power connector
16. Optical drive eject button connector
6. System fan connector 17. Speaker connector
7. Scalar cable connector 18. Optical drive connector
8. Scalar cable connector 19. Solid state disk connector
9. USB 2.0 connectors (2)
20. Hard disk drive connector
10. USB 3.0 connector
21. Memory slot
11. TV jack 1
22. CPU socket
Chapter 7. Locating connectors, controls and components 25