Question Can a loosely connected power supply unit cause damage to a laptop?

[saufall]

is it a bad thing that the cable connects to the power adapter block in a laptop power supply comes loose and is left alone while the laptop is under use? I am worried it could damage my hardware components due to unstable voltage.

 

[geofelt]

If power is disconnected from a laptop, you will run on battery power.
Nothing wrong with that except that the power profile will reduce the cpu and gpu performance.

 

[saufall]

If power is disconnected from a laptop, you will run on battery power.
Nothing wrong with that except that the power profile will reduce the cpu and gpu performance.

No, i mean the power is connected to the adapter. but loosely. It is charging my laptop. When i tried to tighten the connection to the adapter my laptop gave out a buzzing electrivcity sound in the headphone. obviously it is giving out different voltage when it is loosely connected and when it is tightly conneceted.

 

[hotaru.hino]

The voltage coming out of the adapter doesn't change. However, what a loose connection can do is increase the resistance enough such that it causes the connection point to heat up to the point where it damages the surrounding area. But I think it'd have to be really loose for it to reach that point.

If there were any voltage from the charger going into the audio system 1. the audio system would likely be fried immediately since laptop chargers tend to hover around 20V and audio chips I'd imagine are at most 3.3V these days, maybe 5V at most and 2. if the voltage was going into the head phones they'd also probably blow up, but otherwise you wouldn't hear a sound because DC produces a flat line and you need a waveform (i.e., an AC signal) to make a sound.

 

[saufall]

The voltage coming out of the adapter doesn't change. However, what a loose connection can do is increase the resistance enough such that it causes the connection point to heat up to the point where it damages the surrounding area. But I think it'd have to be really loose for it to reach that point.

If there were any voltage from the charger going into the audio system 1. the audio system would likely be fried immediately since laptop chargers tend to hover around 20V and audio chips I'd imagine are at most 3.3V these days, maybe 5V at most and 2. if the voltage was going into the head phones they'd also probably blow up, but otherwise you wouldn't hear a sound because DC produces a flat line and you need a waveform (i.e., an AC signal) to make a sound.

THX. but then what is likely the buzzing sound i heard when i kicked the adapter brick?

 

[hotaru.hino]

THX. but then what is likely the buzzing sound i heard when i kicked the adapter brick?

What laptop do you have?

 

[saufall]

What laptop do you have?

Intel® NUC X15 Laptop Kit - LAPKC71F - Product Specifications | Intel

Intel® NUC X15 Laptop Kit - LAPKC71F quick reference with specifications, features, and technologies.

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