Do I need a new PSU?

[tom gough]

Hello, I have recently bought a new GPU and CPU for my PC and wondering if my power supply is enough to properly run them as I am getting a lot of buzzing sounds which im guessing is coil whine since i installed them.
Specs:
CPU: AMD Ryzen 7 2700x
GPU: Geforce RTX 2070 Super
MOTHERBOARD: ASUS B450-F
RAM: 32gb 3200mhz DDR4 Ram
PSU: Corsair CX850m

Thanks!

 

[Minibiker]

a lot of experienced people on here say the CX range is one of Corsairs lower end models of their range...

How long have you had the PSU?

 

[lord filbuster]

Even if the PSU is lower end, it should still have enough juice to easily power that system. On paper it could basically run two of them at the same time. It also shouldn't be putting out enough ripple to cause whine unless it is faulty.

Does the buzzing happen all the time? I get some coil whine on very high frame rate things, limited to certain benchmarks. This has happened with basically every system I've owned. It's never happened during normal use or gaming though.

 

[tom gough]

Its just over 3 years old and noo not all the time. Its only just started happening on world of warcraft and thats about it.
Thanks

 

[lord filbuster]

Yeah, it might just be because the frame rate will be crazy high. Try turning on vertical sync in wow, and see if it goes away.

 

[mattyfez]

As above, I used to get crazy whine in menu screens where the FPS went through the roof - use v-sync in game or cap frame rate to something sensible in the graphics card driver.