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What is that buzzing sund that comes from the black box in a laptop power cord?
Dagreeks
The buzzing is probably the capacitors and other components transforming the electric current coming from the wall to a volt, watt, amp, ect...that your laptop can use best. If it weren't for the transformer box on the cable, we'd only need a long piece of wire to run our laptops. But computer companies have designed their laptops to use different ampherage voltage, and wattage as compared to your standard electrical current for battery and charging efficiency, as well as a small way to add more money onto the price tag. It's not a big problem, its just your cable doing its job
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What Gateway laptop comes with 0335a1965 power cord?
The MT3707 model
What is that black box in a laptop power cord?
That is a transformer, it lowers the voltage coming from the plug to a lower voltage that the laptop can handle.
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Every laptop has a different power rating.
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heat sink fine+laptop won't power on
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Your car may need power steering fluid if it makes a buzzing noise when you turn the wheel.
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no leaving your laptop pluged in will not waste your power yes it still uses power you dont have to worie about it.
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An uninterruptible power supply device, UPS, will take over when a power outage occurs. This gives the user time to save and close any open programs, folders and files, and to shut down the computer properly until the main power comes back on. The battery in a laptop, when the laptop is also connected to the mains, will act as a UPS if an outage occurs.
