Locating connectors on the rear of the computer
The following illustration shows locations of connectors on the rear of the
computer.
1 Diagnostic LEDs 10 PS/2 mouse connector
2 Voltage selection switch 11 USB connectors
3 Power connector 12 Ethernet connector
4 Audio line out connector 13 USB connectors (4)
5 Audio line in connector 14 PCI Express x1 connector
6 VGA monitor connector 15 PCI Express x16 connector
7 Parallel connector 16 PCI connector (2)
8 Serial connector (COM 1) 17 Serial connector (COM 2) (some models)
9 PS/2
®
keyboard connector
Removing the cover
Attention
Read Chapter 2, “Safety information,” on page 5 and “Handling electrostatic
discharge-sensitive devices” on page 8“Handling electrostatic
discharge-sensitive devices” on page 314 before opening the cover.
1. Shut down your operating system, remove any media (diskettes, CDs, or tapes)
from the drives, and turn off all attached devices and the computer.
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power cords,
input/output (I/O) cables, and any other cables that are connected to the
computer.
116 Hardware Maintenance Manual
