6

Combo audio jack

To listen to the sound from your computer, connect a headphone or a headset that has a 3.5 mm 4-pole plug to the combo audio jack.

Notes:

If you are using a headset with a function switch, do not press this switch while using the headset. If you press it, the headset microphone will be disabled, and the integrated microphones on the computer will be enabled instead.

The combo audio jack does not support a conventional microphone. For more information, see “Using audio features” on page 42.

Bottom view

Note: Your computer bottom view might look slightly different from the following illustration.

Figure 6. ThinkPad Edge E431 and E531 bottom view

 

 

PCI Express Mini Card slot for wireless LAN card

 

 

Memory upgrade slot

 

1

 

4

 

 

 

 

 

 

 

 

Battery

 

 

Hard disk drive or solid-state drive

 

2

5

 

 

 

 

 

 

 

 

Slot for wireless WAN card or M.2 solid-state drive

 

 

 

 

3

 

 

 

 

 

 

 

 

1

PCI Express Mini Card slot for wireless LAN card

Your computer might have a wireless LAN card installed in the PCI Express Mini Card slot for you to establish wireless LAN connections.

2

Battery

Use your computer with battery power whenever ac power is unavailable.

3

Slot for wireless WAN card or M.2 solid-state drive

Your computer might have a wireless wide area network (WAN) card installed in this slot for you to establish wireless WAN connections.

For some models, an M.2 solid-state drive might be installed for data storage instead of a wireless WAN card.

Chapter 1. Product overview 9

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Lenovo E531, E431 manual Bottom view, PCI Express Mini Card slot for wireless LAN card, Battery