I have 8 USB ports on this computer. I'm getting this in dmesg whenever I boot fbsd;

acpi0: <PTLTD   RSDT> on motherboard
    ACPI-1304: *** Error: Method execution failed [\\_SB_.PCI0.USB1._PRW] (Node 0xc3084740), AE_AML_NO_RETURN_VALUE
    ACPI-0239: *** Error: Method execution failed [\\_SB_.PCI0.USB1._PRW] (Node 0xc3084740), AE_AML_NO_RETURN_VALUE
    ACPI-1304: *** Error: Method execution failed [\\_SB_.PCI0.USB2._PRW] (Node 0xc3084620), AE_AML_NO_RETURN_VALUE
    ACPI-0239: *** Error: Method execution failed [\\_SB_.PCI0.USB2._PRW] (Node 0xc3084620), AE_AML_NO_RETURN_VALUE
    ACPI-1304: *** Error: Method execution failed [\\_SB_.PCI0.USB3._PRW] (Node 0xc3084500), AE_AML_NO_RETURN_VALUE
    ACPI-0239: *** Error: Method execution failed [\\_SB_.PCI0.USB3._PRW] (Node 0xc3084500), AE_AML_NO_RETURN_VALUE
    ACPI-1304: *** Error: Method execution failed [\\_SB_.PCI0.USB4._PRW] (Node 0xc30843e0), AE_AML_NO_RETURN_VALUE
    ACPI-0239: *** Error: Method execution failed [\\_SB_.PCI0.USB4._PRW] (Node 0xc30843e0), AE_AML_NO_RETURN_VALUE
    ACPI-1304: *** Error: Method execution failed [\\_SB_.PCI0.USBE._PRW] (Node 0xc3084340), AE_AML_NO_RETURN_VALUE
    ACPI-0239: *** Error: Method execution failed [\\_SB_.PCI0.USBE._PRW] (Node 0xc3084340), AE_AML_NO_RETURN_VALUE
acpi0: Power Button (fixed)

How can I fix it?