PSU Affecting GPU Coil Whine?

[Areyn13]

Hey so i've swapped from a 1070, to a 3070 TUF OC and now to a 3070 Ti Suprim, all on the same PSU they reproduce pretty audible coil whine under high fps loads. I put my ear up next to both the gpu and psu, while the gpu is definitely the more audible whine, i can also hear slight buzzing from my PSU also. Could this be a case where my PSU is causing my GPU's to produce more coil whine? My PSU is an RM750x and i only just got it in October last year, I'm using 2 different cables for both of the 8 pins, but they're also technically piggyback cables like in the picture. Should i consider maybe changing PSU? or would it just more than likely be bad luck? thanks

 

[Guest]

Do you have to hold your ear up to the PC to hear the noises or are you hearing them sitting at a normal position using the PC?

 

[Areyn13]

22 minutes ago, jonnyGURU said:

Do you have to hold your ear up to the PC to hear the noises or are you hearing them sitting at a normal position using the PC?

 

I'm hearing the GPU coil whine at normal distances in the room, only when i use headphones does it disappear. The PSU buzz however, i have to put my ear up to it

[VioDuskar]

48 minutes ago, Areyn13 said:

LOL wtf is this? i've never done this. i've always just used the piggyback for the 2nd plug. that's what it's for? 

I always thought the RM and CM series PSUs from corsair had a bad reputation. I remember a few of them being trash a decade or less ago. 
hell, my SF series PSU had a recall on it and it was fresh last summer. Check corsair for a recall maybe?

[Areyn13]

4 minutes ago, VioDuskar said:

LOL wtf is this? i've never done this. i've always just used the piggyback for the 2nd plug. that's what it's for? 

There's been a big deal made about piggyback cables recently for high wattage cards, people are often told not to use piggyback cables for cards like the 3080/3090 but idk how serious it can be

[VioDuskar]

2 minutes ago, Areyn13 said:

There's been a big deal made about piggyback cables recently for high wattage cards, people are often told not to use piggyback cables for cards like the 3080/3090 but idk how serious it can be

now you got me guessing about my 3080 TI, but i'm pretty sure my SFX PSU won't allow for a piggy back. 

EDIT: just checked it's not possible to piggyback on my current PSU. 

 

[Areyn13]

8 minutes ago, VioDuskar said:

now you got me guessing about my 3080 TI, but i'm pretty sure my SFX PSU won't allow for a piggy back. 

EDIT: just checked it's not possible to piggyback on my current PSU. 

 

Here's a video i saw talking about it, it was basically advice given by Seasonic. I think it's more a less a "better safe than sorry" kinda thing y'know? 

[IIIIIIIIII]

1 hour ago, Areyn13 said:

My PSU is an RM750x and i only just got it in October last year, I'm using 2 different cables for both of the 8 pins, but they're also technically piggyback cables like in the picture. Should i consider maybe changing PSU? or would it just more than likely be bad luck? thanks

 

A good PCIE cable can handle up to 300W each. So if you're using more than one cable (without piggyback), that's perfectly fine.

 

11 minutes ago, Areyn13 said:

Here's a video i saw talking about it, it was basically advice given by Seasonic. I think it's more a less a "better safe than sorry" kinda thing y'know? 

https://forums.tomshardware.com/threads/pigtail-pci-e-power-connectors.3714419/

 

Some brands seem to use cheaper cables & connectors...

[Guest]

1 hour ago, Areyn13 said:

I'm hearing the GPU coil whine at normal distances in the room, only when i use headphones does it disappear. The PSU buzz however, i have to put my ear up to it

This has nothing to do with anything right now.

 

Using individual cables vs. multiple connectors on the same cable has to do with Ohms law and sending twice as much current through a single connector.

 

This does not cause "coil whine".

 

If the noise changes as load increases, it's the main transformer or output choke.  You have copper wire that, as current travels through it, vibrates at a certain frequency.  Often at audible levels.

[Daethz]

I spilled water on a PSU once and then it gave my gpu coil whine for years.

not kidding, was probably unsafe, never burst out in flames luckily.

 

So the answer is yes, its possible.

I don't think if the noise was strictly coil whine though

or maybe im just insane, but i swear when i put that gpu into a new pc the noise went away.