Something popped very loudly

[Vygantas]

Hi everyone, last evening while watching youtube I heard a VERY loud pop in my pc, even the power outlet surge protector popped. After inspecting everything I found nothing, no burns, no blown capacitors(at least the ones that I can see), no bad smell, no smoke, PSU was cool to the touch, and when I turn on my pc again, everything works great, temps are perfect, as if this never happened. What the hell was that?

PC is 1 month old

MSI GeForce RTX 2070 SUPER VENTUS OC

AMD Ryzen 5 3600X

MSI B450 TOMAHAWK MAX, ATX, AM4

PSU Corsair TX750M 80 Plus Gold

[keik]

Any extension cord fuse? Sometimes those are hidden in plugs.

[Vygantas]

No, I don't use extension cords, everything is connected directly to power outlet.

[keik]

PSU must have at least one inside, so it might be that.
 

[Mad153]

8 minutes ago, keik said:

PSU must have at least one inside, so it might be that.
 

(but probably don't open your PSU unless you feel qualified)

 

[Vygantas]

I definitely not going to open it, but if a fuse is blown, why is it still working fine?

[SHADFAN]

2 hours ago, Vygantas said:

I definitely not going to open it, but if a fuse is blown, why is it still working fine?

If it's working fine and nothing changed then it might not be something to care of. 

[keik]

On 6/13/2020 at 12:55 PM, Vygantas said:

I definitely not going to open it, but if a fuse is blown, why is it still working fine?

Because fuse is only another layer of protection added, quite basic and effective. You got filters in better units preventing over and under voltages. Your PSU, unless crucial element fails, will deliver converted power from mains V to needed VAC iirc.

tl;dr: next time something happens, instead of PSU popping, your mother board, GPU, RAM and HDD may pop (at random, even under idle or small load).

[Vygantas]

It happened again in the middle of the night when everything was turned off, and again no signs of damage, no smell, not even a breaker popped. If i haven't heard it I would never know it happened. Can capacitors suddenly discharge? The sound is similar to what ElectroBoom is playing with in his videos, just with a bit more bass.

[Guest]

On 6/13/2020 at 2:16 AM, Vygantas said:

Hi everyone, last evening while watching youtube I heard a VERY loud pop in my pc, even the power outlet surge protector popped. After inspecting everything I found nothing, no burns, no blown capacitors(at least the ones that I can see), no bad smell, no smoke, PSU was cool to the touch, and when I turn on my pc again, everything works great, temps are perfect, as if this never happened. What the hell was that?

PC is 1 month old

MSI GeForce RTX 2070 SUPER VENTUS OC

AMD Ryzen 5 3600X

MSI B450 TOMAHAWK MAX, ATX, AM4

PSU Corsair TX750M 80 Plus Gold

What's the lot code for your PSU?   It's on the box or the PSU itself.  It's the first eight digits of your serial number.

 

[Vygantas]

I think it's 20094853

[Kilrah]

Most likely a cap popped inside the PSU if you don't see anything anywhere else.