Dell Vostro 3750 (Early 2011) - Manual (Page 6)

Figure 6. Vostro 3550 — Back View
1. security cable slot
2. network connector
3. USB 2.0 connector
4. battery
5. VGA connector
6. AC adapter connector 7. USB 2.0 connector
8. cooling vents
9. HDMI connector
10. e-SATA connector
11. 8-in-1 Secure Digital (SD) memory
card reader
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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