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how can a faulty PSU kill components?

I know overvolting and high ripple reduces the lifespan of the components. Also short circuits I think

 

But I also heard when some parts (i don't remember if transistors, diodes, etc) blow up they kill pc parts

 

so if possible explain all the possible manners a psu can kill components THANKS

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8 minutes ago, 17030644 said:

I know overvolting and high ripple reduces the lifespan of the components. Also short circuits I think

 

But I also heard when some parts (i don't remember if transistors, diodes, etc) blow up they kill pc parts

 

so if possible explain all the possible manners a psu can kill components THANKS

A cheap PSU can fail and if it blows, voltage regulation can go out the door and send the mains power straight to your other components like motherboard, GPU, and hard drives, which is obviously not a good thing and they're likely not to survive if this happens.

 

Also, the effects of ripple can cause components to fail as well, even if the PSU is still working.

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20 minutes ago, JM21 said:

A cheap PSU can fail and if it blows, voltage regulation can go out the door and send the mains power straight to your other components like motherboard, GPU, and hard drives, which is obviously not a good thing and they're likely not to survive if this happens.

 

Also, the effects of ripple can cause components to fail as well, even if the PSU is still working.

Basically you can lick your phone charger at the end since the power brick is working fine and steps the voltage down to 5v but if it fails it can pass 120 or 240v straight to you which will kill you. This only happens with cheap psu that don't have a professionally rated score for safety

 

Like diablotech which as its name indicates it is basically Satan because it will blow up

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20 minutes ago, JM21 said:

A cheap PSU can fail and if it blows, voltage regulation can go out the door and send the mains power straight to your other components

1 minute ago, Lordclouds said:

Basically you can lick your phone charger at the end since the power brick is working fine and steps the voltage down to 5v but if it fails it can pass 120 or 240v straight to you which will kill you. This only happens with cheap psu that don't have a professionally rated score for safety

 

 

interesting thanks

 

so when they blow they allow high voltages to pass freely that's what you guys mean?

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7 minutes ago, 17030644 said:

interesting thanks

 

so when they blow they allow high voltages to pass freely that's what you guys mean?

yes it opens the circuit and basically turns your pc at the mercy of your house breakers

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19 minutes ago, 17030644 said:

interesting thanks

 

so when they blow they allow high voltages to pass freely that's what you guys mean?

Yes pretty much, think of Thor in Ragnarok shooting lighting from his hands. But instead, it's your PC components.

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On 10/9/2018 at 5:19 PM, JM21 said:

Yes pretty much, think of Thor in Ragnarok shooting lighting from his hands. But instead, it's your PC components.

 

On 10/9/2018 at 5:05 PM, Lordclouds said:

yes it opens the circuit and basically turns your pc at the mercy of your house breakers

But what causes that? the transistors, the diodes or what?

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34 minutes ago, 17030644 said:

 

But what causes that? the transistors, the diodes or what?

A number of things can cause that to happen. Parts to usually fail in a cheap PSU are either the capacitors, power switching components, or fans. Also making sure to not choke your PSU on a carpet or in a super dusty environment can help the life of any PSU (cheap or not) last much longer.

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