Asus P6T6 WS Revolution - Manual (Page 172)

4-64 Chapter 4: Software support
7. Use Notepad to open the file.
8. Find the [HardwareIds.scsi.iaAHCI_ICH10R] and
[HardwareIds.scsi.iastor_ICH8RICH9RICH10RDO] sections in the
txtsetup.oem file.
9. Type the following line to the bottom of the two sections:
id = “USB\VID_xxxx&PID_xxxx”, “usbstor”
10. Save and exit the file.
Add the same line to both sections.
The VID and PID vary with different vendors.