![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/a/3b/a3bfb6cb-4dad-4889-83a0-ae4ffccdb64b/a3bfb6cb-4dad-4889-83a0-ae4ffccdb64b-bg78.png)
Rear connectors
The following illustration shows the locations of the connectors on the rear of the
computer.
1 Standard mouse connector 9 PCI Express x1 adapter or Express x16
graphics adapter connector (some
models)
2 Parallel connector 10 Audio line out connector
3 Ethernet connector 11 Microphone connector
4 Audio line in connector 12 USB connectors
5 Power cord connector 13 USB connectors
6 Voltage selection switch (some
models)
14 VGA monitor connector
7 PCI adapter connectors 15 Serial connector
8 PCI Express x1 adapter or Express
x16 graphics adapter connector
(some models)
16 Standard keyboard connector
Removing the cover
Important
Read Chapter 2, “Safety information,” on page 3 and “Handling electrostatic
discharge-sensitive devices” on page 6 before opening the cover.
To remove the computer cover:
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down the
operating system, and turn off all attached devices.
2. Unplug all power cords from electrical outlets.
114 Lenovo 3000 J Series