Asus ROG Crosshair X670E Hero USB 2.0 headers not working

[CtrlXx]

This is driving me crazy! I have Lian-li uni fan controller connected to the 2.0 usb header on motherboard. Its a coin toss if it works or not. If it doesnt work it will tell i have a malfunction in device manager "Unknown USB device (device descriptor request failed). Sometimes if i pull the power cable and powerdrain system it might work. Mostly it works if i reseat the cable on the other 2.0 header next to it on the motherboard but its annoying having to open up the system all the time and change header. Asus motherboards seems to have a problem here.

What is the fix here?

[Jiaszzz_ROG]

Hello @CtrlXx 

Thank you for reaching out to us.
When the issue occurs, aside from connecting the 5V ARGB 3-pin header and USB header, could you please confirm if the PSU SATA 15-pin connection was properly made?
Based on the situation you’ve described, potential causes could include incorrect installation leading to a short circuit or poor connection, insufficient power supply, or hardware/software issues.
Therefore, in addition to confirming proper connections and cross-testing with other cables or USB headers, we also recommend checking for any power restrictions, pending driver updates, or unstable power supply within the system.
Additionally, please verify if a BIOS update is required. After updating BIOS, kindly clear CMOS and check again.

Thank you.

[CtrlXx]

I havent connected the ARBG 3-pin header to motherboard as i dont want to control the fan rgb via motherboard. I prefer to do this via L-connect. My uni fan controller has a pci-e power connection that is connected to a pci-e power cable from my psu. running a 1200 asus TUF psu with Asus TUF RTX 4090 and ryzen 9 9900X. should be sufficient

I have set "USB selective suspend setting" to disabled in power plan and the plan itself to high performance.

I have latest bios firmware. i havent cleared CMOS as this doesnt seem like something you ever need to do.