Dell Precision 490 - Manual (Page 24)

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Quick Reference Guide
Front View (Desktop Orientation)
1 upper 5.25-inch drive bay Holds a CD/DVD drive.
2 lower 5.25-inch drive bay You can use the bay for an optional CD/DVD drive, or a SATA hard drive.
3 FlexBay You can use the bay for a floppy drive, or a Media Card Reader.
4 IEEE 1394 connector
(optional) Use the optional IEEE 1394 connector for high-speed data devices such as digital
video cameras and external storage devices.
5 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as
flash memory keys or cameras, or for bootable USB devices (see "System Setup"
in your
User’s Guide for more information on booting to a USB device).
It is recommended that you use the back USB connectors for devices that
typically remain connected, such as printers and keyboards.
6 hard-drive activity light The hard drive light is on when the computer reads data from or writes data to
the hard drive. The light might also be on when a device such as your CD player
is operating.
7 Dell™ rotatable badge To rotate the Dell badge for tower-to-desktop conversion; remove the front panel,
turn it over, and rotate the plastic handle behind the badge.
8 power button Press to turn on the computer.
NOTICE:
To avoid losing data, do not use the power button to turn off the computer.
Instead, perform an operating system shutdown.
NOTE:
The power button can also be used to wake the system or to place it into
a power-saving state. See your User’s Guide for more information.
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