[SOLVED] PSU whine when gaming on high FPS

[Masterplay]

Has anybody else had this issue. I noticed it today when I opened up minecraft. I thought it was the gpu ( gpu was whining a bit too, 2070s) but the PSU was whining really loudly I could hear it through my headphones. Is this normal? I bought this 650bq almost 3 weeks ago and never noticed it.

View: https://youtu.be/AY8AIXzrTUw

 

[mangaman]

Try and take a popsicle stick and insert it into the PSU's fan housing, to stop the fan from spinning. Open up Minecraft again and see if the noise stops. If it does, then it's coil while.

Only way to eliminate it is to RMA the unit for another one, but their is no guarantee that the replacement unit won't have coil whine as well. However this is a pretty serious case of coil whine and while not dangerous it can be very annoying. Can you return the unit for different higher quality model?

 

[Masterplay]

Try and take a popsicle stick and insert it into the PSU's fan housing, to stop the fan from spinning. Open up Minecraft again and see if the noise stops. If it does, then it's coil while.

Only way to eliminate it is to RMA the unit for another one, but their is no guarantee that the replacement unit won't have coil whine as well. However this is a pretty serious case of coil whine and while not dangerous it can be very annoying. Can you return the unit for different higher quality model?

I tried what you asked and it seems to be coil whine. this seems to only happen at higher framerates though. below 300 fps there is no whine and since you say it is not dangerous il try to limit the framerate to something lower. thanks.

 

[Juular]

Try and take a popsicle stick and insert it into the PSU's fan housing, to stop the fan from spinning. Open up Minecraft again and see if the noise stops. If it does, then it's coil while.

... If it does then it's fan bearing noise, if it doesn't stop then it's coil whine. Make sure to stop the fan only when the PSU is turned off to not damage the fan blades. But from the video it's pretty apparent that it is a coil whine. Nothing you can do about it, this is PSU with double-forward topology, they're very much prone to coil whine due to hard switching, the only way is to swap it for other PSU on LLC resonant topology, they're way less likely to whine due to zero voltage switching.

 

[jonnyguru]

Has anybody else had this issue. I noticed it today when I opened up minecraft. I thought it was the gpu ( gpu was whining a bit too, 2070s) but the PSU was whining really loudly I could hear it through my headphones. Is this normal? I bought this 650bq almost 3 weeks ago and never noticed it.

View: https://youtu.be/AY8AIXzrTUw

It's because the EVGA BQ650 is a double forward HEC unit. It gets noisy under those kinds of loads, especially with the Turing GPUs (2070 and 2080). It's the exact same platform as the Corsair CV650 and I can admit, they're noise in the same way.

If you want a quiet PSU, you get a quality PSU. You did not get a high quality PSU.

 

[NightHawkRMX]

It definitely sounds like coil whine. Not dangerous, but annoying.

EVGA BQ is not very good and in my opinion, overpriced.

For a quiet PSU, I would consider an upgrade to a corsair RMx or of Bequiets higher-end models.

 

[Juular]

It's because the EVGA BQ650 is a group regulated HEC unit.
...
It's the exact same platform as the Corsair CV650 and I can admit, they're noise in the same way.

Excuse me, they're both DC-DC 😉

 

[NightHawkRMX]

Excuse me, they're both DC-DC 😉

I believe comparing group regulation to DC-DC Is like comparing a 4 cyl engine to a 7-speed DCT.

Both DC-DC and group regulation are things within a PSU but they don't serve the same function, similarly, an engine and transmission are both within a car but they don't serve the same function.

A PSU can be both group regulated and DC-DC.

I believe the CV is group regulated and partial dc-dc, but I'm sure ill get corrected if I'm wrong.

Also arguing with Jonny Guru about PSUs, especially Corsair ones, is a stupid idea. Ask me how I know.

 

[Juular]

Both DC-DC and group regulation are things within a PSU but they don't serve the same function

That partially correct but a term DC-DC is usually used in a sense that PSU has DC-DC modules for both secondary rails, 3.3V and 5V, if it has only one DC-DC module for 3.3V rail for example it usually isn't called DC-DC unless it's some marketing <Mod Edit>, in this case it would have group regulation for 12V and 5V rails and 3.3V rail would be independently regulated (because it has it's own 12V to 3.3V DC-DC VRM). This platform however has DC-DC for both secondary rails so it's true DC-DC independently regulated platform. Jon is probably just tired, he makes mistakes, he's a human.

 

[jonnyguru]

Excuse me, they're both DC-DC 😉

You are correct. I totally typo'd. It does have DC to DC. But that doesn't matter here.

What I meant to say is it is double forward. I already edited my original post.

I believe comparing group regulation to DC-DC Is like comparing a 4 cyl engine to a 7-speed DCT.

Both DC-DC and group regulation are things within a PSU but they don't serve the same function, similarly, an engine and transmission are both within a car but they don't serve the same function.

A PSU can be both group regulated and DC-DC.

I believe the CV is group regulated and partial dc-dc, but I'm sure ill get corrected if I'm wrong.

Also arguing with Jonny Guru about PSUs, especially Corsair ones, is a stupid idea. Ask me how I know.

No. He's correct. I did a typo. The BQ and CV650 are NOT group regulated. They both use DC to DC for both the +3.3V and +5V.

What I meant to type is that they have double forward topology and that's what makes them particularly loud under load. It's the hard switching beating on the main transformer.

 

[NightHawkRMX]

You are correct. I totally typo'd. It does have DC to DC. But that doesn't matter here.

What I meant to say is it is double forward. I already edited my original post.



No. He's correct. I did a typo. The BQ and CV650 are NOT group regulated. They both use DC to DC for both the +3.3V and +5V.

What I meant to type is that they have double forward topology and that's what makes them particularly loud under load. It's the hard switching beating on the main transformer.

Ah ok.

I do recall you previously saying that double forward doesnt handle the transiet load spikes as well as llc resonant and double forward tends to be noisy in the process. Or something like that.

Should have remembered that and questioned what you said.

Or just looked at my own experiences with a 5700 non xt on a double forward cxm.

 

[jonnyguru]

Ah ok.

I do recall you previously saying that double forward doesnt handle the transiet load spikes as well as llc resonant and double forward tends to be noisy in the process. Or something like that.

Should have remembered that and questioned what you said.

Or just looked at my own experiences with a 5700 non xt on a double forward cxm.

Yeah. Here's what CV650 looks like when recorded with an OmniMic inside an aechoic chamber (Cazilla on top, Furmark on bottom):

https://imgur.com/1qBK2wk

View: https://i.imgur.com/1qBK2wk.jpg

 

[NightHawkRMX]

Can't quite read the key at the top

 

[jonnyguru]

Can't quite read the key at the top

It's just a frequency range from 0 to 20000 Hz across the bottom. Each point is measured in dB.

The white line is the base line. Any frequency that goes over the white line (which I've circled in red) is considered a "fail".

 

[NightHawkRMX]

ah ok