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Lenovo encourages you to make efcient use of energy an integral part of your day-to-day operations. To
help in this endeavor, Lenovo has preset the following power-management features to take effect when your
computer has been inactive for a specied length of time:
Table 1. ENERGY STAR power-management features
Power plan: Energy Saver (settings when plugged into ac power)
• Turn off the display: After 10 minutes
• Put the computer to sleep: After 25 minutes
• Advanced power settings:
– Turn off hard disk drives: After 20 minutes
– Hibernate: After 1 hour
To awaken your computer from Sleep mode, press the Fn key on your keyboard. For more information about
these settings, see your Windows Help and Support information system.
Export classication notice
This product is subject to the United States Export Administration Regulations (EAR) and has an Export
Classication Control Number (ECCN) of 4A994.b. It can be re-exported except to any of the embargoed
countries in the EAR E1 country list.
Electronic emission notices
The following information refers to the following Lenovo products, machine types: 3756, 3761, 3772, 6274,
20205, 20206, 20207, and 20208.
Lenovo B490, B590, B4301, B4302, B4303, B4305, B4306, B4307, B4308, B4309, B4310, B4311, B4312,
B4315, B4316, B4317, B4318, B4319, B4320, B4321, B4322, B4323, B4325, B4326, B4327, B4328, B4329,
B4330, B4331, B4332, B4333, B4335, B4336, B4337, B4338, B4339, B4360, B4361, B4362, B4363, B4365,
B4366, B4367, B4368, B4369, B4370, B4371, B4372, B4375, B4376, B4377, and B4378
Federal Communications Commission (FCC) Declaration of Conformity
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult an authorized dealer or service representative for help.
Lenovo is not responsible for any radio or television interference caused by using other than specied or
recommended cables and connectors or by unauthorized changes or modications to this equipment.
Unauthorized changes or modications could void the user's authority to operate the equipment.
Appendix A. Regulatory information 55