Operating environment

This section provides information about your computer operating environment.

Environment:

Maximum altitude without pressurization: 3048 m (10 000 ft)

Temperature

At altitudes up to 2438 m (8000 ft)

Operating: 5.0°C to 35.0°C (41°F to 95°F)

Storage: 5.0°C to 43.0°C (41°F to 109°F)

At altitudes above 2438 m (8000 ft)

Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)

Note: When you charge the battery pack, its temperature must be at least 10°C (50°F).

Relative humidity:

Operating: 8% to 80%

Storage: 5% to 95%

If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.

Keep electrical appliances such as an electric fan, radio, air conditioner, and microwave oven away from your computer because the strong magnetic fields generated by these appliances can damage the monitor and data on the hard disk drive.

Do not place any beverages on top of or beside the computer or other attached devices. If liquid is spilled on or in the computer or an attached device, a short circuit or other damage might occur.

Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.

Lenovo programs

Your computer comes with Lenovo programs to help you work more easily and securely. Depending on the Windows operating system preinstalled, the programs might vary.

To learn more about the programs and other computing solutions offered by Lenovo, go to: http://www.lenovo.com/support

To access Lenovo programs, press the Windows key to go to the Start screen. Click a Lenovo program to launch it. If you cannot find the program you need, move the pointer to the top-right or bottom-right corner of the screen to bring up the charms. Then click the Search charm to search the desired program.

You computer might be preinstalled with the following Lenovo programs.

Active Protection System

The Active Protection System program protects your hard disk drive when the shock sensor inside your computer detects a condition that could damage the drive, such as system tilt, excessive vibration, or shock. The hard disk drive is less vulnerable to damage when it is not operating. This is because when the hard disk drive is not operating, the system stops it from spinning, and might also move the read and write heads of the drive to areas that do not contain data. As soon as the shock sensor senses

12User Guide

Page 26
Image 26
Lenovo 20CD0033US manual Operating environment, Lenovo programs, Active Protection System