Rear component

Component

Description

 

 

Vent

Enables airflow to cool internal components.

 

NOTE: The computer fan starts up automatically to cool internal

 

components and prevent overheating. It is normal for the internal fan to

 

cycle on and off during routine operation.

 

 

Right-side components

NOTE: Your computer may look slightly different from the illustration in this section.

Component

Description

 

 

 

(1)

Optical drive light

Blinking: The optical drive is being accessed.

 

 

 

(2)

Optical drive

Reads optical discs and, on select models, also writes to optical

 

 

discs.

 

 

 

(3)

USB ports (2)

Connect optional USB devices.

 

 

 

(4)

RJ-11 (modem) jack (select models only)

Connects a modem cable.

 

 

 

(5)

Power connector

Connects an AC adapter.

 

 

 

Rear component 13

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HP CQ40-404AX, CQ40-416TU, CQ40-417TU, CQ40-408AU, CQ40-421AX, CQ40-409TU manual Rear component, Right-side components