Lenovo A730 All-in-One IdeaCentre - Manual (Page 31)

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 connector（RJ45） 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