Lenovo IdeaCentre B540 All-in-One Desktop PC, Intel Core i5, 6GB RAM, 2TB, 23" Touch Screen, Black

Product information

The Lenovo B540 all-in-one desktop provides state of the art entertainment and gaming features in a slim and modern design. Bring videos and photos alive on the 23-inch, full high definition touch screen and experience crystal clear graphics with everything you do. Thanks to Intel’s third generation processing, you won’t be left waiting around for a second.

  • Powered by the Intel Core i5 processor and an impressive 6GB RAM, all your applications will load quickly leaving you more time to get things done.

  • Get in the action and experience fantastic, un-interrupted picture quality thanks to the 1GB dedicated graphics from NVIDIA.

  • Store all your photos, video, music and more on the colossal 2TB hard drive. There is plenty of room for multiple users to store data for convenient access.

  • The Lenovo Dynamic Brightness System protects your eyes by automatically adjusting screen brightness, based on ambient light conditions. The Lenovo Eye Distance System also alerts you, if you are too close to the screen.

  • An array of fun touch screen features for all the family. Lenovo’s Camera Fun Zone lets you see yourself on screen and move your hands to interact with games. Whilst the Lenovo IdeaTouch, provides a range of touch-optimized multimedia applications.

  • This desktop comes equipped with all the connections you need for home computing. USB 2.0 ports will help you connect external devices while the built in speakers with Dolby home theatre technology provide great quality audio for maximum entertainment.

Whether it’s simple computing tasks, watching your favourite film or playing games, the B540 really has something for everyone.


This device can be upgraded to Windows 8.1 for free through the Windows Store.

Accessories Included
Wireless keyboard and mouse
Bluetooth Enabled Information Wireless way of transferring data between electronic devices over short distances
Camera (front-facing) Information Used for making video calls
720p HD webcam
CD/DVD/Blu-ray Drive Information Whether this machine can play/burn Blu-ray discs, DVDs or CDs.
CD/DVD Read & Write
Computer Support Helpline Information We offer access to a 90 day helpline when you buy a new laptop or desktop computer from John Lewis. The service is available for a period of 90 days from the date you make your purchase.
Free 90 day computer support
H576.6 x W411.9 x D110.3 mm
Ethernet Port Information Allows a connection to a router via a cable (available separately).
Graphics card Information Generate the images you see on your computer screen
NVIDIA GeForce G615, 1GB
Graphics card type Information A dedicated graphics card enables you to run advanced programmes such as games or design packages more smoothly. Computers without graphics cards run these programmes through their processors.
Hard drive Information Stores files and programmes. A portion of this may already be consumed by pre-installed data.
2TB hard disk drive
Memory (RAM) Information Random Access Memory (RAM) allows your computer to multitask.
Memory Card Slots Information A memory card slot allows you to transfer photos and files directly from a memory card.
6-in-1 card reader (SD / SDHC / SDXC / MMC / MS / MS_Pro)
Model name / number
IdeaCentre B540 57310668
NFC enabled Information Devices with NFC can be tapped together to establish a wireless connection for sending or streaming files and other data
Operating system Information Determines the interface you see on screen and the types of programmes you can run.
Windows 8 (64 Bit)
Operating System Filter
Windows 8
Ports Information Ports used to connect other devices, for example USB to connect peripherals or HDMI to connect to a high definition display.
4x USB 2.0
Processor Information The processor (also called CPU) is the "brain" of your computer and enables programmes to run.
Quad-core Intel Core i5-3330S
Processor speed Information Determines how quickly programmes run. Processors with 'Turbo Boost' can enhance their performance to deal with more demanding tasks.
2.7GHz to 3.2GHz with Turbo Boost
Processor Type Information Also called CPU (central processing unit) is the circuitry within a computer/laptop/tablet. It carries out the basic instructions that drive a computer/laptop/tablet.
Intel Core i5
Screen finish Information A matte screen is easier to view in bright light. Gloss screens can provide more vivid colours.
Screen Resolution Information Picture quality defined by the number of individual dots (pixels) used to create an image. The higher the number of pixels, the higher the image quality.
1920 x 1080 pixels
Screen size Information Measured diagonally.
Touch Screen
TV tuner card Information Device that receives digital free-to-air terrestrial and/or analogue television services
Voice Recognition Information Can be operated using spoken commands, so no need for typing, scrolling or clicking.
Wireless networking
Wi-Fi- 802.11b/g/n


  • International delivery not available


If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 35 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

You can return for free in the UK via John Lewis shops, Royal Mail, Collect+ or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454

You’ll find returns information on your delivery note. Exceptions apply to certain products - find out more about our refund policy

Q & As

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