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2.12 Connecting PS/2, USB, Serial and Parallel Ports
This motherboard includes ports for PS/2 mouse and keyboard, Universal Serial Bus (USB) devices, and
serial and parallel devices. Please note that the upper PS/2 port is the mouse port, and the lower PS/2
port is for the keyboard (see
Figure 2.7
below).
The PS/2 connectors are probably quite familiar to you, while the USB connectors may not be. A USB
port can function as a serial, parallel, mouse, keyboard, display, or joystick port. It is capable of supporting
up to 127 daisy-chained peripheral devices. All external ports are labeled in
Figure 2.7
, shown below.
Connecting Serial and Parallel Ports
The serial and parallel ports can be used to connect various devices such as a mouse or printer. The con-
nectors can only be connected one way: be sure and check the orientation of the connector before install-
ing it into the port.
Figure 2.7
NOTE:
When plugging in your keyboard and mouse, or when plugging in anything into a
serial or parallel port, make sure that the power is off. Connecting these devices
and ports while the power is on is called
hot plugging
and may damage your sys-
tem and/or external devices that you are trying to install.
PS/2 Mouse Port
PS/2 Keyboard Port
USB Ports
Serial Port
Parallel Port
LAN
Serial Port
Line-out*
Line-in*
Mic-in*
Game/MIDI Port*
* optional feature available on some Thunder HEsl models
