Glad you found it (forgot to save other link)
as for the Device Manager IRQ data you reported
Maybe i don't correctly recall all the details behind how Windows plug and play works / should be config'ed and how all that applies to USB (and there are a number and variety of details so I could well be wrong) and will have to investigate. But off-hand am surprised to see, (right or wrong in my suprise)
1. Each USB controller set to a different IRQ: 16, 19, and 23 (vs all the same IRQ)
2. IRQ 16 is shared by a USB controller as well as other devices (usually USB controllers don't like sharing with other then non-USB controllers)
3. And aside from above, i thought typically one would leave the IRQ assignments up to Windows plug-and-play OS rather explicit assignments in BIOS
All of the above i need to double check.
Do you see any BIOS options to enable/disable something like Plug and Play BIOS or Plug and Play OS (though i also see your IRQ device list includes Microsoft ACPI-Compliant System which i think implies you should be ok for Plug and Play. just don't remember off-hand.
Need to re-check the details on all of this so will take a little time to update you (and me) on this info.