Buzzing sound from PC when running Witcher 3 and other games

[Priyank Kumar]

My specs are:
Ryzen 5 1600 with stock cooler not oc'd
ASUS Dual RX 580 not oc'd
MSI B350m Mortar
G. Skill Trident 8GB x 2 running at 2667 MHz
Seasonic S12G 650W

I got it assembled a few weeks ago and have been playing the witcher 3 on it. It was running fine at 60 fps but since today, **just as I start the gameplay** a buzzing noise starts coming from the PC. I checked it by ear and it seems to be coming from the PSU area and is the loudest when my ear is near the PSU back panel where the power cord goes in so I THINK it's not ta gpu coil whine but I maybe wrong.

The sound isn't very high but noticeable when not wearing headphone. Also the sound starts and stops **INSTANTLY** with the gameplay. When I press the inventory or map key and the screen changes the sound immediately stops, it also stops immediately as I exit the game and starts immediately when a save file is loaded. There is no sound in the start menu either.

What could be causing this and is it likely it indicates a serious problem? This is my first PC on the "expensive" side, I am both illiterate with computers and extremely worried right now.

EDIT: I tried out Saints Row: The Third on it, a rather different and bit louder sound came out during the loading animations. With the witcher 3 it was monotonous, here it was going up and down in frequency. It disappeared when the game started and when I changed the settings from low to high it came back but now it was like with the witcher 3 but a bit quieter.

 

[atljsf]

if you hear the psu, it is the psu

try to open the pc and exactly discover the source of the noise

coil whine usually remains always the same so if you didn't heard it before, i would point to the psu, but you must be sure, before removing it and applying warranty

 

[Priyank Kumar]

Thanks for the quick reply!

I am not experienced at all with PC hardware and don't know how to check for the sound with the case(I presume that's what you mean) open and would need to call a technician for it. I am 100% sure this has never happened before. I have had the PC for about two weeks.

 

[atljsf]

no one asked you to be experienced, open the case, turn it on, play the game and try to find the source of the noise to know what is causing it

sounds like a defective psu

 

[Priyank Kumar]

Sorry for the delay in reporting back. I opened the side panel and the noise is definitely coming from inside the PSU shroud area.

How do I know if it's a faulty PSU fan or PSU coil whine? It worked fine for two weeks before the problem suddenly starting, so given it's either of those two problems could it be dangerous or is it just annoying but "benign" and wouldn't harm the computer with usage?

 

[atljsf]

if psu does noise under load, it is begging you to return it to apply the warranty you have right to apply for it

weird, that is a decent quality brand