System Board - Lenovo ThinkCentre M820z User Manual And Hardware Maintenance Manual

Used to connect the power cord to your computer for power supply.
4 Ethernet connector
Used to connect an Ethernet cable for network access.
5 USB 3.1 Gen 1 connector
Used to connect a USB-compatible device. For optimal data transfer, connect a USB 3.1 Gen 1 device to a
USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector. The connector supports the
smart power on feature that enables you to turn on the computer or wake it up from S4 hibernation mode by
pressing Alt+P on the keyboard. You can enable or disable the smart power on feature from the Setup Utility
program. For detailed information, see Important Product Information Guide.
6 USB 3.1 Gen 1 connector
Used to connect a USB-compatible device. For optimal data transfer, connect a USB 3.1 Gen 1 device to a
USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector.
7 DisplayPort 1.2 out connector
Used to send audio and video signals from the computer to another audio or video device, such as a high-
performance monitor.
8 Serial connector
Used to connect an external modem, a serial printer, or other devices that use a serial connector.
9 Security-lock slot
Used to secure a Kensington-style cable lock.
10 VESA threaded holes
Used to connect the matched VESA mount with the matched screws when you install the computer on a
wall.

System board

Note: See "Front view" and "Rear view" for additional component descriptions.
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M820z User Guide and Hardware Maintenance Manual