Hi EVGA,
 
My gsync monitors OSD shows a static 360Hz while gsync is active (Asus PG259QN and Alienware AW2521H). Both tested with 2 different motherboards, CPU and RAM. The only common factor is the same GPu was used in both cases: GTX 1080Ti FTW3. Does this means I have to RMA my GPU? Also both motherboards would sometimes do a 1 long then 3 short beeps on a cold start, indicating a problem with the GPU.
 
Thank you very much.
Best regards.

Hi there, the OSD should show the real refresh rate in real time when using Gsync (variable refresh rate). Btw tested with 2 drivers. Btw I noticed that associate stuff in your signature, might come in handy for my next GPU, thanks for that :)

I don't know I don't overclock my hardware, is MSI Afterburner capable of displaying in real time which refresh rate is used (not talking about frame rate).

A few things to note:
 
- If I use my old BenQ XL2411T (144Hz no gsync monitor) I don't have any beeps from the motherboard.
 
- If I use any of my 360Hz gsync monitor I sometimes have motherboard beeps complaining about the GPU (the system still load and works fine), and gsync never worked, with or without the motherboard beeps.
 
Most probably this means there is a problem with the GPU, btw I checked if I had to update the GPU firmware with the DP 1.4 update NVIDIA provides, the tool tells me the update is not required. Maybe EVGA is aware of that and have a BIOS update? Otherwise I will have to RMA it.

both motherboards are new and tested with 2 different UEFI BIOS (z690 chipset).

I would be surprised if both my z690 motherboards require any fidling with the BIOS settings to get gsync to work. They both are set to PCIe 4.0, the GPU however only uses 3.0 as reported by GPU-Z.

Ecbatani
Another anomaly is when I use Spotify or Amazon Prime Video the monitor would receive a fuzzy full grey screen with no way out of it unless I blindly ALT+F4 or hard reboot. The issue persists with my 2 360Hz Gsync monitors and my 144Hz non gsync one. I tried using a different browser, different motherboards and CPU + RAM. I think it's quite clear the problem is the GPU doing funky stuff with the refresh rate.
 
I can fix Prime Video and Spotify by changing my desktop refresh rate to 60Hz. This is insane.

Yeah sounds like the GPU is having issues. :(

HeavyHemi

Ecbatani
Another anomaly is when I use Spotify or Amazon Prime Video the monitor would receive a fuzzy full grey screen with no way out of it unless I blindly ALT+F4 or hard reboot. The issue persists with my 2 360Hz Gsync monitors and my 144Hz non gsync one. I tried using a different browser, different motherboards and CPU + RAM. I think it's quite clear the problem is the GPU doing funky stuff with the refresh rate.
 
I can fix Prime Video and Spotify by changing my desktop refresh rate to 60Hz. This is insane.

Sounds to me like at a 360hz refresh rate, you are exceeding the pixel clock rate the GPU is capable of.

The GPU can output 360Hz no problem, the monitors too and it works ingame, but Gsync doesn't work at all and some apps would make the whole screen go grey. On a sidenote I just noticed EVGA has discontinued it's Advanced RMA service, sad! :)