Never do THIS When Cleaning a PC

This PC cleaning tip could SAVE your PC.

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[MAbduser]

False. The fan is connected to a controller that won't allow electricity the opposite way.

[kelvinadu]

i will be worried about damaging the bearings rather than frying the motherboard.

[dennisbusch]

2, 5v on a 12v lane? I dont see a problem there

[Cantbebotherd]

Most pc fans have a diode to prevent this lol

[ganeryex]

lol 2.... volt will not kill a diode 😂

[shlumbisss]

I think if you blow the air the correct way it shouldn’t do that. Correct me if I’m wrong pleasr

[air-drive]

Ever heard of a diode? it only allow electricity to flow in one direction, all good designs will take a fan that can generate electricity (they should not) will be protected by a diode.

[StefanBacon]

I find it very hard to believe that three volts in either direction will damage a fan controller.

[Josemarieonichan]

Engineers think this through, that is why they add resistor as a controlet o stop the electric flow.

[mrinaladhikary]

😢sad but this is not the truth now a days modern cpu fan come with a reverse diode protection.
It means if it's a 12 or 24v or 36v or 48v fan. If we spin to its max rpm it will generate 1.30vdc to 1.60vdc hard enough to turn a led. But cpu works on.
1.50vdc
3.30vdc
And 5vdc
So yes it can damage cpu if reverse diode fails
Thank you😅

[deonbrewis]

It's 2.5v. Those fans are powered by 5v or 12v circuits. They're not going to break if you put 2.5v in them.