Precautions for Use (Be Sure to Read)Express5800/T110f-S User’s Guide 21During operationCAUTIONAvoid contact with the server during thunderstorms.Do not touch any part of the server including the cables when a thunderstorm is approaching. Also, do notconnect or disconnect any devices. There may be a risk of electric shock from lightning strike.Keep animals away from the server.Keep animals such as pets away from the server. Pet hair or other waste enters the server, which maycause a fire or electric shock.Do not place any object on top of vertically mounted servers.Any weight on the server may cause the server to fall, resulting in personal injury or property damage.Do not place any object that weighs 5 kg or more on top of horizontally mounted servers.The maximum weight that can be placed on top of the server when it is horizontally mounted is 5 kg. Donot place any object weighing 5 kg or more on top of the server. Failure to observe this limit may deformthe server, which could cause a failure.Do not leave the optical disk drive tray open.Dust may get in the server when the tray is open, which may result in a malfunction. In addition, bumpingthe open tray could cause personal injury.Do not get yourself caught in the fanKeep your hands and hair away from the cooling fan at the rear of the server during operation. Failure toobserve this warning may cause your hands or hair to catch in the fan, resulting in personal injury.