Nedum

Hello together.
I want to share where my issue was coming from and how I fixed it. It's all about pressure! 😉
It's about the cable loop provided for this purpose on the head strap, the very stiff cable, and the probably too low tolerances of the fan blade covers.
All this also explains why the problem mainly affects the left fan.
A cable loop is provided to prevent the cable from kinking when the head strap is folded up. This loop has a guide. And this guide ensures that tension or pressure is applied to the cable. This pressure is transmitted via the cable connection to the optical unit.
This is enough to cause the fan blades of the left fan to rub against the cover and produce a humming noise.
If you remove the cable from the guide, the noise is almost 100% eliminated.
I can't say exactly what is happening inside the optical drive without opening it up. But I'm not going to do that. 😉
The fact is, I can create or eliminate the problem on my own by changing the pressure on the cable.
This is exacerbated if, like me, you have a “small” forehead, which causes the headset to bend even more and thus creates more pressure on the cable connection via the cable.
So if anyone experiences a similar problem to mine, please try removing the cable loop from the designated loop to see if that helps.
 

Hi, every system from Pimax will be better, as long as it has local dimming and Eye Tracking. You can lower the resolution of the HS if needed, and you will always get a much better image the Q3 can handle too you. And with the 72 FPS mode and Eye Tracking, it will always run as smooth as the Quest 3.
The question is more like: "How much are you willing to pay for it?"
I'm waiting for my Crystal Super 50 PPD. Nearly 130° horizontal FoV. Can't wait for it. Better local dimming than my current Crystal, much brighter, better colors, smaller, less weight, without any battery, I am so excited. 🙂

Hi, it's a known bug and already reported. As soon as you change the MFD settings, the FCR will switch to RWS not matter if you are in NAVI or AA Mode. Nearly every MFD change will do that.
 

Hi, nearly all page changes will switch TWS to RWS, not matter if you are in NAV, AA or AG mode, Change your Page = go to RWS.

Please remove all the mods you have installed and do a slow repair. That should fix the problem.