® Format (PDF) version from the Lenovo Support Web site at http://www.lenovo.com/UserManuals. The Lenovo Support Web site also provides the Safety, Warranty, and Setup Guide and this User Guide in additional languages. Service and upgrades Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or your documentation.
Do not use any power cords where the electrical contacts on either end show signs of corrosion or overheating or where the power cord appears to have been damaged in any way. Lenovo S400z and S405z User Guide...
Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage. Laser compliance statement Lenovo S400z and S405z User Guide...
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Used to turn on your computer. You also can use the power button to turn off your computer only when ® ® you cannot use any Microsoft Windows shutdown procedure to turn off your computer. Lenovo S400z and S405z User Guide...
Rear view Figure 2. Rear view Security-lock slot USB 3.0 connectors (2) Headset connector Card reader slot USB 2.0 connectors (3) HDMI -out connector Ethernet connector ac power adapter connector Internal speakers (2) • ac power adapter connector Used to connect the ac power adapter to your computer for power supply. •...
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(PDA). • USB 3.0 connector Used to connect a device that requires a USB 2.0 or USB 3.0 connection, such as a keyboard, a mouse, a scanner, a printer, or a PDA. Lenovo S400z and S405z User Guide...
Computer components Note: Depending on your computer model, some of the following components might not be available. Figure 3. Computer components Chapter 1 Product overview...
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Heat sink Coin-cell battery ® System board VESA mount bracket Storage drive bracket System fan Storage drive Internal speakers (2) Feet (2) Power button board Converter board Optical drive Optical drive bracket ac power adapter Lenovo S400z and S405z User Guide...
Note: For the parts that are displayed on the following two figures but not introduced in the corresponding tables, see “Front view” on page 1 and “Rear view” on page 3. For S400z Figure 4. Parts on the system board (S400z) M.2 Wi-Fi card slot Microprocessor...
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Power button board connector SATA connector 1 (connecting to the storage drive) SATA power connector (connecting to the storage drive and optical drive) SATA connector 2 (connecting to the optical drive) System fan connector Coin-cell battery Lenovo S400z and S405z User Guide...
Machine type and model label The machine type and model label identifies your computer. When you contact Lenovo for help, the machine type and model information helps support technicians to identify your computer and provide faster service. The machine type and model label is attached on the rear of your computer as shown.
Your computer is preinstalled with Windows 7 or Windows 10 operating system. Additional operating systems might be identified by Lenovo as compatible with your computer. To determine if an operating system has been certified or tested for compatibility, check the Web site of the operating system provider.