2-6 Setting Up the System! Position the system away from direct sunlight and extreme hot andcold temperatures.The recommended operating environment is from 50∞F to 95∞F (10∞Cto 35∞C).The recommended non-operating environment (shipping or storage) isfrom 14∞F to 158∞F (-10∞C to 70∞C).! After turning off power, wait about five seconds for the hard drive tospin down before you power on again.! Be sure that nothing is placed on top of the systemís AC adapter andpower cord.! Prevent dust from entering the system by covering it when not in use.Keeping Your System in Good ConditionMaintain the condition of your system by periodically using the followingprocedures.For safety, power off and unplug your systemand any external devices before cleaning them.! Clean the outside of the system unit and LCD panel (but not thescreen) with a soft clean cloth.Remove stubborn stains with a cloth slightly dampened with a milddetergent. Never use a strong cleaner or solvent on any part of thesystem.! Clean the LCD panel screen with a soft, lint-free cloth or a screenwipe designed for that purpose. Special screen wipes are availablethrough your local computer dealer.! Keep food and liquids away from the system.! Periodically clean the keyboard with a vacuum cleaner brushattachment. Do not use any liquid cleaners on the keyboard as theycan damage the keyboard.If an object, such as a paper clip, falls into the keyboard, turn thekeyboard over and gently shake it.