Power supply dying?

casaubond · 12 May 2023 at 09:09

I have a Corsair 1000 HX platinum , currently supplying power to 5800x3D CPU coupled with 4090 FE card on a x570 Gigabyte MB. I use a corsair 600W power cable for the GPU , not the 4 different cables. When computer is on, there are no issues, no sudden resets, games runs flawlessly , and I can see the GPU draws around 400W when is used 100% (not very often as is GPU bottlenecked in some scenes but that is another issue)

When the computer is turned off there is a very high pitch noise coming from the power supply area - like tinnitus if someone had it - initially made me think I got it , but when I turn the power supply off from the back switch , the noise disappears. I only hear it when the computer is off - but still connected to power and the power supply is switch on - not when the computer is on - but that may be it is drowned by other noised from fans ..etc

Do I need to worry? Do I need a new power supply ?

mickyflinn · 12 May 2023 at 11:02

How old is the psu ?

Which psu are you referring to as you say the GPU runs off a 600w unit ,which model?

pastymuncher · 12 May 2023 at 13:24

Why are you using two psu's? The HX1000 is more than capable of running that pc with plenty of headroom left over. Which psu is making the noise? If it's the 600w get rid of it and just use the HX1000 for everything.

casaubond · 12 May 2023 at 13:34

hi mikyflinn- PSU is only 2 years old.
I have edited initial text, I use a 600W corsair power cable for the 4090 (bought from OC'er and I checked on Corsair site , it says it's compatible with the power source )- sorry for the ambiguous text

Tetras · 13 May 2023 at 15:36

casaubond said:
When the computer is turned off there is a very high pitch noise coming from the power supply area - like tinnitus if someone had it - initially made me think I got it , but when I turn the power supply off from the back switch , the noise disappears. I only hear it when the computer is off - but still connected to power and the power supply is switch on - not when the computer is on - but that may be it is drowned by other noised from fans ..etc

Do I need to worry? Do I need a new power supply ?

Did the PSU always do this?

Do you have any devices that are enabled on standby (including RGB on the board)? If there are, you could try turning them off and seeing if it helps.

I would send an email to Corsair as they may have more idea what's happening.

My impression is that the PSU is fine.

casaubond · 14 May 2023 at 14:16

Thank you Tetras, I will email Corsair