Dell Inspiron 2500 - Manual (Page 58)

Security Cable Slot
The slots (one on each side of the computer) let you attach a commercially available antitheft device to the computer. Complete instructions for installing
antitheft devices are usually included with the device.
PC Card Slot
The PC Card slot has two connectors that support various types of PC Cards, including modems and network cards.
Back View
Fan Exhausts
The fan works with the air intake to prevent the computer from overheating. When the computer gets hot, the small internal fan turns on and draws air
through the air intake to cool the computer. Hot air is expelled through the fan exhaust.
AC Adapter Connector
Use this connector to attach an AC adapter to the computer.
If you ordered the optional integrated network adapter, use this connector to connect the computer to a
network. If a network cable is connected to the network connector, the green light indicates that the
network connection is active. If you do not see a green light after connecting a network cable, try replacing
the network cable. An amber light indicates that the network adapter driver is loaded and the adapter is
detecting activity.
NOTICE: Antitheft devices are of differing designs. Before you buy one, make sure it will work with the security cable slot in the computer.
HINT: The computer turns on the fan only when the computer gets hot. It may run most of the time or very seldom, depending on your use of the
computer. Because the fan spins at a high rate of speed, it may make a noise. This noise is normal and does not indicate a problem with the fan or the
computer.
CAUTION: Do not push objects into or block the air intake. Doing so can cause fire or damage interior components. Keep the opening free from
dust and other foreign particles.