Check the usage environmentAvoid using the computer on a highly heat retentive surfaces (e.g., rubber pads). If possible, use the computer on surfaces that can dis-sipate heat, such as a steel desk.Do not use a keyboard cover, as this prevents heat dissipation.Always keep the display open in sleep.Check the followingIf the computer becomes warm while the screen saver is displayed, set the screen saver to [Windows Logo]. Screen savers that use3-D images or other complex images increase the CPU utilization rate.If you are not using a wireless LAN, turn the wireless LAN off.Use recommended RAM module products. Non-recommended RAM modules may not operate properly, and may cause damage toyour computer.Double-click on the desktop and click [High speed], then click [OK].When you set [High speed], rotation of the cooling fan speeds up and the computer can be cooled down. Note that the battery oper-ating time will be shorter.When you do not frequently use CPU or the rotation noise of the fan bothers you, set [Standard] or [Low speed] as necessary.Use the settings “To increase power conservation” shown on the reverse side.If the computer becomes warm during usageDFQX1745ZA HS1007-0Printed in Japan