HP Compaq NC4400 Manuale utente
External Devices
Document Part Number: 405762-001
May 2006
This guide explains how to use optional external devices.
External Devices ii
Contents
1 Using a USB device
Connecting a USB device . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Stopping a USB device . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Required USB software . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
USB legacy support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
2 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.
This computer has one powered USB port and 2 standard USB
ports that support USB 1.0, USB 1.1, and USB 2.0 devices.
■The powered USB port (on the right side of the computer)
provides power to external devices when used with a powered
USB cable.
■The other 2 USB ports do not provide power. External
high-power devices connected to the USB ports that do not
provide power must also be connected to AC power. Low
power devices such as USB keyboards, mouse devices, and
webcams do not require an AC power connection when
connected to the 2 USB ports that do not provide power.
An optional docking device provides additional USB ports that
can be used with the computer.
1–2 External Devices
Using a USB device
✎Your computer may look slightly different from the illustration
in this chapter.
Connecting a USB device
ÄCAUTION: To prevent damage to the USB connectors, use minimal
force to insert a USB device.
To connect a USB device to the computer, connect the USB cable
for the device to the USB port. 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.
Using a USB device
External Devices 1–3
Stopping a USB device
ÄCAUTION: To prevent loss of information or an unresponsive system,
stop the 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 Show
Hidden Icons icon (< or <<) in the notification area.
2. Click the USB device listing.
✎If the USB device is not listed, you do not have to stop the
device before you remove it.
3. Click Stop.
Required USB software
Some USB devices may require additional support software,
which is usually included with the device. For more information
about device-specific software, refer to the user guide for the
device.
1–4 External Devices
Using a USB device
USB legacy support
USB legacy support (enabled by default) allows you to
■Use a USB 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, and then press enter.
3. Use the arrow keys to enable or disable USB legacy support.
4. To save your preference 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 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.
✎Your computer may look slightly different from the illustration
in this chapter.
© 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: May 2006
Document Part Number: 405762-001
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