power down

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power down

1. To cease functioning or operating by disconnecting from a power source. To avoid damaging the screen, these new LED televisions power down automatically after half an hour if they are not being used. The hackers were able to rewrite the security system's code so that it powered down without sending an alert or raising an alarm.
2. To cause something, especially a computer or computer system, to cease functioning or operating by prompting it to disconnect from a power source. In this usage, a noun or pronoun can be used between "power" and "down." Please be sure to power down your computer before you leave the office. It turns out that a technician powered the entire defense network down by mistake, leaving us wide open to cyber attacks for over an hour.
See also: down, power
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

power down

v.
1. To stop the operation of something, especially when a special process is required: The engineers powered down the generator to repair the wires. After we were finished with the computer, we powered it down.
2. To stop operating, especially when a special process is required: The computer powers down automatically if not used for four hours.
See also: down, power
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
You can make your present PC more energy-efficient by adding a retrofit that automatically powers down your monitor.
Other fuel saving features include a standard load sensing power system for precise maneuverability and reduced engine power loads; an economy mode to improve truck run time over the course of the work day with minimum power reduction; and a programmable auto engine off function that automatically powers down the lift truck after a preset amount of time.
Optionally, after a set period of inactivity, the forklift automatically powers down, conserving energy and allowing for more run time.
This function powers down the amplifier with 0 V on the control pin and provides full power with 3.6 V on the control.
The computer's preferences may be set to sleep, shut down, or stay powered up on battery backup when the forklift powers down. LXE, 770-447-4224, www.lxe.com.