Usb Devices Don't Function Correctly When Connected - Buffalo IFC-PCIE4U3S User Manual

Device not recognized
Is the IFC-PCIE4U3S displayed in Device Manager? The following devices should be installed.
Windows 8.1
Windows 8
Windows 7
Windows Vista
Windows Server 2012 R2
Windows Server 2012
Windows Server 2008 R2
Windows Server 2008
Windows Server 2003 R2
Windows Server 2003
Windows XP
Check that both devices are installed correctly, with no "x" or "!" marks next to them. If they are
not, there are several things that can cause this.
• The IFC-PCIE4U3S is not installed properly. Shut down and unplug the computer, remove the card,
and reinstall it correctly. Consult the Quick Setup Guide for more information.
• The PCI Express slot of the computer is broken, or disabled in the BIOS settings of the computer.
Check the computer's BIOS settings. Also, try installing the card in a different slot.
• The computer's BIOS may need to be updated. Contact the manufacturer of your computer for
details.

USB devices don't function correctly when connected

Do some of your USB devices not work as expected when connected to the IFC-PCIE4U3S?
There are several things that can cause this.
• Check that all connectors are plugged together securely. Unplug and reconnect each
connector. Clean any dirty or dusty connectors.
• Are devices conflicting? Disconnect all USB devices and then reconnect one at a time. Make
sure that each works separately.
• Has a USB port shut down because of overvoltage? In the future, only use the device
that caused the overvoltage with its own power supply attached. The isolated port can be
recovered by the following method
(1) Disconnect all of connected USB devices.
(2) Delete the device (see above for device names) from Device Manager.
(3) Restart the computer.
• Power is not connected to this device. Many devices require a dedicated power supply to
function properly. Only use such devices with the correct power supply attached.
• A USB device is not compliant with USB 1.1 or later. The IFC-PCIE4U3S should work with any
USB 1.1, 2.0, or 3.0 device. USB 1.0 devices are not supported and may not work correctly.
Universal Serial Bus
controllers
USB (Universal Serial Bus)
Controller
Renesas Electronics USB 3.0 Host Controller
Renesas Electronics USB 3.0 RootHub
3