HP Compaq NX7400 User manual

External Devices
Document Part Number: 410774-001
April 2006
This guide explains how to use optional external devices with the
computer.

External Devices ii
Contents
1 Using a USB device
Connecting a USB device . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Stopping a USB device . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Required USB software . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
USB legacy support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
2 Using a 1394 device
Connecting a 1394 device . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Stopping a 1394 device . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Required 1394 software . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
3 Using the docking connector

External Devices 1–1
1
Using a USB device
Universal Serial Bus (USB) is a hardware interface that can
be used to connect an optional external device, such as a USB
keyboard, mouse, drive, printer, scanner, or hub, to the computer
or to an optional docking device. A hub provides additional USB
ports for the system and can be connected to the computer or to
another hub.
The computer has 3 standard USB ports that support USB 2.0 and
USB 1.1 devices. An optional docking device provides additional
USB ports that can be used with the computer.

1–2 External Devices
Using a USB device
Connecting a USB device
ÄCAUTION: To prevent damage to the USB connectors, use minimal force
to connect a USB device.
To connect a USB device to the computer, connect the USB cable
for the device to the USB port on the computer. The operating
system will issue a sound to indicate that a device has been
detected.
✎The first time you connect a USB device, the “Found New
Hardware” message is displayed in the notification area, at the
far right of the taskbar.
Stopping a USB device
ÄCAUTION: To prevent loss of information or an unresponsive system, stop
a USB device before removing it.
To stop a USB device:
1. Double-click the Safely Remove Hardware icon in the
notification area, at the far right of the taskbar.
✎To display the Safely Remove Hardware icon, click the
Show Hidden Icons icon (<or <<) in the notification area.
2. Click the USB listing.
✎If the USB device is not listed, you do not have to stop the
device before you remove it.
3. Click Stop.

Using a USB device
External Devices 1–3
Required USB software
Some USB devices may require additional software, which is
usually included with the device. For more information about
device-specific software, refer to the manufacturer’s instructions
included with the device.
USB legacy support
USB legacy support (enabled by default) allows you to
■Use a keyboard, mouse, or hub connected to a USB port on
the computer during startup or in a non-Microsoft®
Windows®application or utility.
■Start or restart from an optional external MultiBay.
To enable or disable USB legacy support:
1. Open Computer Setup by turning on or restarting the
computer, and then pressing f10 while the “F10 = ROM Based
Setup” message is displayed in the lower-left corner of the
screen.
2. Use the arrow keys to select System Configuration > Device
Configurations.
3. Use the arrow keys to enable or disable USB legacy support.
4. To save your preferences and exit Computer Setup, use the
arrow keys to select File > Save changes and exit. Then
follow the instructions on the screen.
Your preferences go into effect when the computer restarts.

External Devices 2–1
2
Using a 1394 device
IEEE 1394 is a hardware interface that can be used to connect a
high-speed multimedia or data storage device to the computer.
Scanners, digital cameras, and digital camcorders often require
a 1394 connection.
The computer 1394 port, illustrated below, also supports IEEE
1394a devices.
Connecting a 1394 device
ÄCAUTION: To prevent damage to the 1394 port connectors, use
minimal force to connect a 1394 device.
To connect a 1394 device to the computer, connect the 1394
device cable to the 1394 port on the computer. The operating
system will issue a sound to indicate that a device has been
detected.
✎The first time you connect a 1394 device, the “Found New
Hardware” message is displayed in the notification area, at the
far right of the taskbar.

2–2 External Devices
Using a 1394 device
Stopping a 1394 device
ÄCAUTION: To prevent loss of information or an unresponsive system, stop
a 1394 device before removing it.
To stop a 1394 device:
1. Double-click the Safely Remove Hardware icon in the
notification area, at the far right of the taskbar.
✎To display the Safely Remove Hardware icon, click the
Show Hidden Icons icon (<or <<) in the notification area.
2. Click the 1394 listing.
3. Click Stop.
Required 1394 software
Some 1394 devices may require additional software, usually
included with the device. For more information about
device-specific software, refer to the manufacturer’s instructions
included with the device.

External Devices 3–1
3
Using the docking connector
The docking connector on the bottom of the computer allows you
to connect the computer to an optional docking device. An
optional docking device provides additional ports and connectors
that can be used with the computer.

© Copyright 2006 Hewlett-Packard Development Company, L.P.
Microsoft and Windows are U.S. registered trademarks of Microsoft
Corporation.
The information contained herein is subject to change without notice. The
only warranties for HP products and services are set forth in the express
warranty statements accompanying such products and services. Nothing
herein should be construed as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or omissions contained herein.
External Devices
First Edition: April 2006
Document Part Number: 410774-001