Lenovo ThinkSmart Core Hardware Maintenance Manual

Also see for ThinkSmart Hub: User guide Deployment guide Hardware Maintenance Manual User guide Getting started

computer, power adapter, and many accessories produce some heat during normal operation. Extendedcontact with the body could cause discomfort or, potentially, a skin burn.• Do not charge the battery or operate your computer, power adapter, or accessories near flammablematerials or in explosive environments.• Ventilation slots, fans, and heat sinks are provided with the product for safety, comfort, and reliableoperation. These features might inadvertently become blocked by placing the product on a bed, sofa,carpet, or other flexible surface. Never block, cover, or disable these features.Inspect your desktop computer for dust accumulation at least once every three months. Before inspectingyour computer, turn off the power and unplug the computer's power cord from the electrical outlet; thenremove any dust from vents and perforations in the bezel. If you notice external dust accumulation, thenexamine and remove dust from the inside of the computer including heat sink inlet fins, power supply vents,and fans. Always turn off and unplug the computer before opening the cover. If possible, avoid operatingyour computer within two feet of high-traffic areas. If you must operate your computer in or near a high-trafficarea, inspect and, if necessary, clean your computer more frequently.For your safety and to maintain optimum computer performance, always follow these basic precautions withyour desktop computer:• Keep the cover closed whenever the computer is plugged in.• Regularly inspect the outside of the computer for dust accumulation.• Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required forcomputers in dusty or high-traffic areas.• Do not restrict or block any ventilation openings.• Do not store or operate your computer inside furniture, as this might increase the risk of overheating.• Airflow temperatures into the computer should not exceed 35°C (95°F).• Do not install air filtration devices. They may interfere with proper cooling.Electrical current safety informationDANGERElectric current from power, telephone, and communication cables is hazardous.To avoid a shock hazard:• Do not use your computer during a lightning storm.• Do not connect or disconnect any cables or perform installation, maintenance, or reconfigurationof this product during an electrical storm.• Connect all power cords to a properly wired and grounded electrical outlet.• Connect properly wired outlets to any equipment that will be attached to this product.• Whenever possible, use one hand only to connect or disconnect signal cables.• Never turn on any equipment when there is evidence of fire, water, or structural damage.• Disconnect the attached power cords, battery, and all the cables before you open the devicecovers, unless instructed otherwise in the installation and configuration procedures.• Do not use your computer until all internal parts enclosures are fastened into place. Never usethe computer when internal parts and circuits are exposed.Chapter 1. Important safety information 7