*** Are you experiencing USB port stability problems? ***
Hi Casey,
I'm grateful for your work and commitment. Hopefully a smoking gun will appear. Thanks.
Are you running Mojave or Catalina?
Mojave
Are you using Clover or OpenCore?
Clover
Are you using the USB SSDT from this thread (SSDT-UIAC-Z390-DESIGNARE-V7.aml)?
Yes
Are you using USBPorts.kext instead?
No
What is the make/model of your power supply?
SEASONIC PRIME 750W 80+T FM PSU
What USB devices are connected when instability occurs?
Happens regardless of devices
Which of these devices has its own power supply?
I generally use a high powered USB3 hub (Hoo Too) for drives and powered hubs for everything else
What Thunderbolt devices are connected when USB instability occurs?
none
When USB instability occurs, what exactly happens on screen? What do you experience?
System is fine but all usb devices become unavailable (ext drives disappear) but are still powered.
Does the instability go away on its own? Does it require a reboot?
No. It always requires a reboot and curiously Kensington turbo mouse settings are forgotten for a minute or so.
How often does it occur? Every time you use the computer? Every N hours? Every N minutes?
Usually occurs two or three times during a 8-12 hr workday