Dell Precision M65 - Manual (Page 7)

serial connector
video connector
AC adapter connector — Connects an AC adapter to the computer.
The AC adapter converts AC power to the DC power required by the computer. You can connect the AC adapter with your computer turned either on or off.
air vents — The computer uses an internal fan to create airflow through the vents, which prevents the computer from overheating.
Bottom View
If you ordered the optional internal modem, connect the telephone line to the modem connector.
For information on using the modem, see the online modem documentation supplied with your computer (see Finding Information).
Connects serial devices, such as a mouse or handheld device.
Connects video devices, such as a monitor.
CAUTION: The AC adapter works with electrical outlets worldwide. However, power connectors and power strips vary among countries. Using an
incompatible cable or improperly connecting the cable to the power strip or electrical outlet may cause fire or equipment damage.
NOTICE: When you disconnect the AC adapter cable from the computer, grasp the connector, not the cable itself, and pull firmly but gently to avoid
damaging the cable. When you wrap the AC adapter cable, ensure that you follow the angle of the connector on the AC adapter to avoid damaging the
cable.
NOTE: The computer turns on the fan when the computer gets hot. Fan noise is normal and does not indicate a problem with the fan or the computer.
CAUTION: Do not block, push objects into, or allow dust to accumulate in the air vents. Do not store your computer in a low-airflow environment,
such as a closed briefcase, while it is running. Restricting the airflow can damage the computer or cause a fire.