Question Sound after slowly flipping PSU switch

Jan 31, 2025
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Hi everyone,

I tried turning off the PSU by flipping the switch and heard a noise when I did. I paused for a second, then continued flipping the switch and heard the same noise, but it stopped once the switch was fully in the "off" position. I’ve since learned that you’re not supposed to flip the switch slowly—kind of like with light switches. Since this happened twice in quick succession, should I be worried about any potential damage to my PC? Do you think I need to replace the PSU?

I've definitely learned my lesson and will make sure to flip the switch quickly from now on. In hindsight, I probably shouldn’t have turned it off in the first place since I was only swapping DisplayPort cables.

Also, if it makes a difference, my PSU is Superflower Leadex VII (A-tier according to https://cultists.network/140/psu-tier-list/)
 
Welcome to the forums, newcomer!

Do you think I need to replace the PSU?
First, include the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Second, might want to include an audio/video clip to illustrate what you're hearing/experiencing.

I've definitely learned my lesson and will make sure to flip the switch quickly from now on.
Third, if you flip it without hesitation, you won't be hearing an arc/crackling sound(which is what I'm assuming you heard).

Do you think I need to replace the PSU?
The sound doesn't warrant a PSU change/swap.