I'm running out of options to understand a couple of issues happening with my PC right now. A few months ago, I bought a new CPU (i7 8700K), Mobo (MSI Z390 Gaming Plus), RAM and GPU (MSI RTX2070). Installation went smoothly and I was happy with it all.
A month or so later, I bought a music keyboard and along with it, a USB audio interface (PreSonus AudioBox 96) and some studio monitor speaker (Yamaha HS-5's). Straight away I noticed that, when playing games, the speakers emit a variable high-pitch noise. I've searched the internet high and low for a solution, but yet to fix the problem. It only happens when the GPU is under heavy load - the volume and pitch gets louder as I see the GPU % increasing in Windows. I tried my old GTX970 - the same problem, albeit slightly quieter. I've ruled out a ground loop and all the typical suggestions.
I also bought a new monitor around the same time as the other components: an AOC Agon 35" Ultrawide. After a while, I noticed some screen flickering, mostly during games but also with some apps such as Lightroom and Unity. I managed to RMA the monitor and got a replacement a couple of weeks ago, but lo and behold the issue is still there which makes me wonder if it wasn't the monitor at all! (Whoops)
So, I'm now suspicious that my motherboard might be faulty and whether it's possible that this is causing both the audio noise (trying different GPUs seems to rule out a card issue) and the screen flicker. Unfortunately, I can't borrow a motherboard and I'm slightly reluctant to just buy another one in case it doesn't fix the problem. (I've already overspent on a UPS, new cables, powered USB hub etc. to try and fix the audio noise).
It could be PSU I suppose, but I ran some test software that shows it's outputting solid voltages, and it's a Corsair Gold 850W that worked fine before the upgrade.
Any thoughts/suggestions appreciated!
A month or so later, I bought a music keyboard and along with it, a USB audio interface (PreSonus AudioBox 96) and some studio monitor speaker (Yamaha HS-5's). Straight away I noticed that, when playing games, the speakers emit a variable high-pitch noise. I've searched the internet high and low for a solution, but yet to fix the problem. It only happens when the GPU is under heavy load - the volume and pitch gets louder as I see the GPU % increasing in Windows. I tried my old GTX970 - the same problem, albeit slightly quieter. I've ruled out a ground loop and all the typical suggestions.
I also bought a new monitor around the same time as the other components: an AOC Agon 35" Ultrawide. After a while, I noticed some screen flickering, mostly during games but also with some apps such as Lightroom and Unity. I managed to RMA the monitor and got a replacement a couple of weeks ago, but lo and behold the issue is still there which makes me wonder if it wasn't the monitor at all! (Whoops)
So, I'm now suspicious that my motherboard might be faulty and whether it's possible that this is causing both the audio noise (trying different GPUs seems to rule out a card issue) and the screen flicker. Unfortunately, I can't borrow a motherboard and I'm slightly reluctant to just buy another one in case it doesn't fix the problem. (I've already overspent on a UPS, new cables, powered USB hub etc. to try and fix the audio noise).
It could be PSU I suppose, but I ran some test software that shows it's outputting solid voltages, and it's a Corsair Gold 850W that worked fine before the upgrade.
Any thoughts/suggestions appreciated!
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