Rear connectors
The following illustration shows the locations of the connectors on the rear of the
computer.
1 Power connector 9 Ethernet connector
2 Voltage selection switch
(some models)
10 USB connectors
3 Mouse connector 11 Microphone connector
4 Keyboard connector 12 Audio line out connector
5 Serial connector 13 Audio line in connector
6 Parallel connector 14 PCI Express x1 or PCI Express x16 adapter
connector (some models)
7 VGA monitor connector 15 PCI Express x1 or PCI Express x16 adapter
connector (some models)
8 USB connectors 16 PCI adapter connectors
Removing the covers
Important
Read Chapter 2, “Safety information,” on page 3 and “Handling electrostatic
discharge-sensitive devices” on page 6 before opening the cover.
Some FRU replacements require the removal of only the left-side cover. Others
require removal of both the left-side and the right-side covers.
1. Shut down the operating system, remove any media (DVDs, CDs, or tapes)
from the drives, and turn off all attached devices.
2. Unplug all power cords from electrical outlets.
84 Lenovo 3000 J Series
