Lenovo A720 Lenovo IdeaCentre A720 Hardware Maintenance Manual (English) - Page 31

Identifying parts on the motherboard - support

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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 2. HDMI-in connector 3. USB 3.0 connector 4. Ethernet connector（RJ45） 5. Power connector 6. System fan connector 7. Scalar cable connector 8. Scalar cable connector 9. USB 2.0 connectors (2) 10. USB 3.0 connector 11. TV jack 1 12. TV jack 2 (Japan only) 13. Card reader 14. Microphone connector 15. Headphone connector 16. Optical drive eject button connector 17. Speaker connector 18. Optical drive connector 19. Solid state disk connector 20. Hard disk drive connector 21. Memory slot 22. CPU socket Chapter 7. Locating connectors, controls and components 25

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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 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