ASUS Motherboard and XP are not recognizing USB 2.0 ports


Processor: AMD Phenom II X3 710
Revision: C2 Stepping
Speed: 2.6 Ghz
Socket AM2
Supported Voltage 1.5 v
External Clock 200 MHz
Max Speed 3700 MHz
Current Speed 2600 MHz

Motherboard Manufacturer: ASUSTeK Computer INC.
Product Name: M3N72-D
Version: 1.XX

Power Supply: Antec Basiq BP500U 500W Continuous Power ATX12V Version 2.01 Active PFC Power Supply

Vendor: Phoenix Technologies, LTD
BIOS Version: ASUS M3N72-D ACPI BIOS Revision 0603
BIOS Release Date: 12/09/2008
BIOS ROM Size: 1024 KBytes

RAM: 4 GB (XP reports only 3.5 GB but I read that this misreporting is expected for 32 bit machines)
Socket Designation DIMM_A1
Current Speed 800 MHz
Memory Type DDR2

Front Media Panel: Silverstone FP-34

Vantec SATA/IDE to USB 2.0 Adapter 2.5"/3.5"/5.25"

Windows XP with Service Pack 3


The hardware-components listed above were purchased individually and assembled by me in August of 2009 with the help and direct supervision of a friend who works in IT and builds several computers per month.


All of the USB connectors (USB78, USB910, and USB1112) on the motherboard are USB 2.0. The Vantec "SATA/IDE to USB 2.0 adapter" is USB 2.0. When I connect a SATA hard drive to any port on the computer (including the Silverstone FP-34) using the Vantec adapter, Windows XP gives me message-balloons saying that the device is unknown, or that the device is unrecognized, or XP simply rejects the device altogether and ignores it, or that the device is recognized but it would transfer data faster if it were connected to a USB 2.0 port.

When USB stick-drives (2 GB and 4 GB) are connected to the computer, they are all correctly recognized as USB 2.0, so I thought that the problem might be in the Vantec SATA/IDE to USB 2.0 adapter.

When the Vantec adapter/device is connected to an XP laptop and a Win2K desktop, there are no problems whatsoever. (Except that the XP laptop reads the external hard drive as an *internally installed* hard drive...which doesn't make sense to me, but it functions without a problem).

How do I get this machine to consistently and correctly recognize USB 2.0?
2 answers Last reply
More about asus motherboard recognizing ports
  1. Look at the options in the bios.
  2. Are you using an old hard drive, or a new one? The owners manual that came with the Vantec adapter should help you solve your problem. Page 9 has the instructions on how to create a new partition on the hard drive. Page 11 also has troubleshooting tips that sound like the problem you're experiencing.

    "Q. My computer sometimes recognizes the IDE-USB Adapter, but
    sometimes gives me errors.
    A. If your computer is giving you problems with the SATA/IDE-USB
    Adapter, be sure to connect the USB cable to a rear port, directly
    off the motherboard or USB PCI card. The cables connecting
    front USB ports are not always properly shielded and cannot
    properly handle USB 2.0 speeds, thereby corrupting the signal
    between the SATA/IDE-USB Adapter and the computer."
Ask a new question

Read More

Homebuilt USB Motherboards Windows XP Systems Product