Dell Dimension YH242 Owner's Manual page 14

1 cover release latch
2 CD or DVD activity
light
3 CD or DVD eject
button
4 FlexBay drives (2)
5 vents
6 USB 2.0 connectors (2)
7 power button
8 hard-drive activity light
9 diagnostic lights (4)
10 headphone connector
11 microphone connector
12 Service Tag
14
Setting Up and Using Your Computer
Use this latch to remove the cover (see "Removing the Computer Cover" on
page 78).
The CD or DVD drive light is on when the computer reads data from or writes
data to the CD or DVD drive.
Press the CD or DVD eject button to eject a disc from the CD or DVD drive.
Can contain an optional floppy drive or optional Media Card Reader. For
information on using the Media Card Reader, see "Using a Media Card Reader
(Optional)" on page 31.
For adequate cooling, do not block any of the vents.
NOTICE:
Ensure that there is a minimum of two inches of space between all
vents and any object near the vents.
NOTICE:
Keep the vent area clean and dust-free to ensure that the system is
adequately ventilated. Use only a dry cloth to clean the vent area to avoid
water damage to the system.
Use the front USB connectors for devices that you connect occasionally, such as
flash memory keys, cameras, or bootable USB devices. For more information on
booting to a USB device, see "System Setup Options" on page 129.
NOTE:
It is recommended that you use the back USB connectors for devices that
typically remain connected, such as printers and keyboards.
Press the power button 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.
The hard-drive light is on when the computer reads data from or writes data to
the hard drive. The light may also be on when a device such as a CD player is
operating.
Use the sequence of the diagnostic lights to help you troubleshoot a problem
with your computer (see "Diagnostic Lights" on page 65).
Use the headphone connector to attach headphones and most kinds of speakers.
Use the microphone connector to attach a personal computer microphone for
voice or musical input into a sound or telephony program.
Use the Service Tag to identify your computer when you access the Dell Support
website or contact support.