Question PSU Clicking noise on BIOS

[mat1995]

Hello
As the title says , my PSU makes a clicking sound(not constant ) on low power demanding tasks i guess
When accessing BIOS my PSU will make a clicking noise occasionally ( the same noise when i press the power button on my PC to turn it ON)
There is no noise when booting up the PC except for this initial clicking noise but i guess that it is the PSU turning ON
This noise also happens on a memory diagnostic from windows (again , low power usage)
I have a 500w PSU i5 9400f 1060 6gb tuf b360 gaming plus 8gb ram
Note that normal use is fine and this sound does not happen when gaming or browsing ( no BSOD , freezing , shutdown restart nothing)
I´ve read somewhere that this is a undervolt protection from PSU
I plug my PC directly into the power outlet
Is this safe or there is a problem?
Thank you
Also bios on default

 

[jonnyguru]

Hello
As the title says , my PSU makes a clicking sound(not constant ) on low power demanding tasks i guess
When accessing BIOS my PSU will make a clicking noise occasionally ( the same noise when i press the power button on my PC to turn it ON)
There is no noise when booting up the PC except for this initial clicking noise but i guess that it is the PSU turning ON
This noise also happens on a memory diagnostic from windows (again , low power usage)
I have a 500w PSU i5 9400f 1060 6gb tuf b360 gaming plus 8gb ram
Note that normal use is fine and this sound does not happen when gaming or browsing ( no BSOD , freezing , shutdown restart nothing)
I´ve read somewhere that this is a undervolt protection from PSU
I plug my PC directly into the power outlet
Is this safe or there is a problem?
Thank you
Also bios on default

What 500W PSU (make/model)?

It's a single click or a repeating click click click?

 

[mat1995]

What 500W PSU (make/model)?

It's a single click or a repeating click click click?

Just a single click while on BIOS or low demading tasks( memory diagnostic from windows)
but never on windows or while running games

Sometimes it does not even happen if i leave the BIOS fast enough

It happens once in BIOS and then it stops

In the memory diagnostic it happened because it takes a bit of time to complete

I think it is the same noise when i first press the power button to turn ON the PC but i´m not sure

This sound also happens when shutting down the PC ( A normal computer shutdown through windows , not anything hard)

This is my PSU https://www.pichau.com.br/hardware/fonte/fonte-pichau-gaming-nidus-500w-bronze-80-plus-pg-5001-br-01

It is produced by channel well technology , also there is a test on a very reliable channel here in my country and it says that this is a good PSU

I have my PC for 3 months and i didn´t have any issue with it

It is just this clicking sound on BIOS and low demanding tasks ( never on windows )

Is this anything harmful?

Thank you

 

[Memphisto]

I can only guesstimate here because i dont know anything about your PSU, but it sounds to me as if one relais turns off the power because it senses that not much power is being used

 

[mat1995]

I can only guesstimate here because i dont know anything about your PSU, but it sounds to me as if one relais turns off the power because it senses that not much power is being used

Is this harmful at all?

Thank you

 

[jonnyguru]

Is this harmful at all?

Thank you

If that's how the PSU is designed to operate, how would it be harmful?

CWT has a number of platforms that will switch from LLC mode to burst mode at loads < 10%. This allows the PSU to have an efficiency of 70% even at loads as low as 2%.

 

[mat1995]

If that's how the PSU is designed to operate, how would it be harmful?

CWT has a number of platforms that will switch from LLC mode to burst mode at loads < 10%. This allows the PSU to have an efficiency of 70% even at loads as low as 2%.

I´m sorry , pretty new to PC gaming and this clicking noise got me bothered
I thought something was wrong with my computer
But if it is okay then fine
Thank you