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Bottom view - ThinkPad S531

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  hole battery hdd LAN slot ssd

Index Item Description
1 M.2 solid-state drive slot

For some models, an M.2 solid-state drive might be installed for data storage.

2 Emergency reset hole If the computer does not respond, remove the ac power adapter and reset the computer by inserting a straightened paper clip into the emergency reset hole to turn off the computer.
3 Memory-upgrade slot

You can increase the amount of memory in your computer by installing a memory module in the memory upgrade slot. Memory modules are available as options from Lenovo.

Note: If you connect your computer to a docking station or replicator, use the Ethernet connector on the
docking station or replicator to connect to a LAN, instead of the one on the computer.
4 Integrated battery

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

5 Hard disk drive or solid-state drive

Depending on the model, your computer might have a large-capacity, customer-upgradable hard disk drive that can meet a variety of storage demands. Some models are equipped with a solid-state drive for data storage, making your computer lighter, smaller, and faster.

Note: The hidden service partition is the reason why there is less free space than expected on your hard disk drive or solid-state drive. This reduction is more noticeable on the solid-state drive because of its smaller capacity.

6 Wireless LAN card slot

Your computer might have a wireless LAN card for you to establish wireless LAN connections.


  • Alias ID:
  • Document ID: PD027928
  • Last Updated :17 Jun 2014
  • © 2015 Lenovo