Dell 1550, 1540 manual Optical drive eject button

7.	optical drive eject button	12.	touchpad buttons (2)
8.	audio connectors	13.	device status lights
9.	microphone	14.	keyboard
10.	touchpad	15.	power button
11.	memory card reader

Figure 2. Back View
1.	security cable slot	5.	network connector
2.	battery	6.	VGA connector
3.	power connector	7.	HDMI connector
4.	cooling vents	8.	USB 2.0 connector

WARNING: Do not block, push objects into, or allow dust to accumulate in the air vents. Do not store your Dell 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. 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.

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