IBM 8185 - ThinkCentre M50 - 256 MB RAM User Manual

Also see for 8185 - ThinkCentre M50 - 256 MB RAM: Hardware Maintenance Manual

Contents

foreign materials on the battery leads, stop using the battery and obtain areplacement from the battery manufacturer.Batteries can degrade when they are left unused for long periods of time. For somerechargeable batteries (particularly Lithium Ion batteries), leaving a battery unusedin a discharged state could increase the risk of a battery short circuit, which couldshorten the life of the battery and can also pose a safety hazard. Do not letrechargeable Lithium-Ion batteries completely discharge or store these batteries in adischarged state.Heat and product ventilationComputers generate heat when turned on and when batteries are charging.Notebook PCs can generate a significant amount of heat due to their compact size.Always follow these basic precautions:v Do not leave the base of your computer in contact with your lap or any part ofyour body for an extended period when the computer is functioning or whenthe battery is charging. Your computer produces some heat during normaloperation. Extended contact with the body could cause discomfort or, potentially,a skin burn.v Do not operate your computer or charge the battery near flammable materials orin explosive environments.v Ventilation slots, fans and/or heat sinks are provided with the product for safety,comfort, and reliable operation. These features might inadvertently becomeblocked by placing the product on a bed, sofa, carpet, or other flexible surface.Never block, cover or disable these features.CD and DVD drive safetyCD and DVD drives spin discs at a high speed. If a CD or DVD is cracked orotherwise physically damaged, it is possible for the disc to break apart or evenshatter when the CD drive is in use. To protect against possible injury due to thissituation, and to reduce the risk of damage to your machine, do the following:v Always store CD/DVD discs in their original packagingv Always store CD/DVD discs out of direct sunlight and away from direct heatsourcesv Remove CD/DVD discs from the computer when not in usev Do not bend or flex CD/DVD discs, or force them into the computer or theirpackagingv Check CD/DVD discs for cracks before each use. Do not use cracked ordamaged discsviii User Guide