The new cable is also included in the Alfa price I will get in a month I guess.
My question is: what’s about the power supply for the headset? You cannot transfer any current through an optical cable.
So… there Must be a Glas fibre and 2 other cables for the power supply right?
I thought the one USB port was only to get the poser needed for the headset. The other one was for transferring the data. Does someone knows why the new cable only needs one USB port?
this answer doesn’t really help. If I use both USB ports at the same time, it sometimes happens that Windows reports overcurrent on the USB port. If I only use the USB 3, this is not the case. Since then I’ve only been using the one USB 3 port from the hmd. because I was concerned about destroying my pc or the hmd.
I did not cancel the eyetracking module after the nice support told me the coupon had expired. and it would only be valid until the end of the year. In my opinion it is unbearable how the customers / once backers are blackmailed. there are certainly many who have no problems with the device and therefore praise pimax to heaven. should they do.
i ordered the 6meter optical on aliexpress on the official pimax store there.
I did get a email that i need to cancel my order,because the cables are unstable .
The overcurrent is because your both USB ports might be a split of only one. This means, both ports do have the same controller and the same power lane. If this port supports 1A and it will be split into 2 ports, then each of them supports 0.5A.
The USB 3 port normally supports a higher current.
I am not really familiar with the technical side of pimax products. For me it makes sense, that the 2 usb connectors are made for using the usb 2.0 ports. By using the usb2.0 ports, you must be sure that you plug it into 2 different power lanes to not have a overcurrent.
Sounds like your Mobo has poor VRMs. Or maybe its the USB controller. Try putting each cable into different USB controller input (check mobo manual if u are not sure which is which)
I guess the 2nd USB cable is only to provide more power for the headset. and as I said before, thisonly works, if the both USB ports are not using the same power line.
USB3 doesnt have any power issues for sure.
If the USB controller detects the overdraw then it is a problem of the device (either it really draws too much, or it has other electrical problem - e.g. shorted cable). The (USB) controller shuts down the port then to protect the hardware (itself).
It is possible that some 8k-X simply draw more power then others and if the nominal draw is borderline the spec, you may easily end up with problems such this.
Interesting. I am guessing you mean there is less mechanical shielding, because I would think the USB3 data pairs would still have some thin foil shielding (although far more minimal), due to their frequency still being higher than USB2.
EDIT: Woah, USB3 operates at ~2.5GHz fundamental frequency. There has to be some shielding for that…
I simply based my statement on the fact that it’s noticeably thinner and softer, which leads be to believe the shielding is probably thinner because its not as important.
And… im not sure about this, but optical “wire” transmits light. Electricity and spikes shouldn’t cause any interference to optical transmission, or am I wrong?
It’s most likely transmitting the display signal via optical fiber and the USB (incl. power which cannot be emitted via light) via copper (which is shielded… I hope)…