SiS Chipset Problems
SiS host controllers are notorious for their problems coping with high bandwidth devices such as scanners and printers. These problems are more pronounced for devices that operate in the USB2.0 domain with 480Mb/s data streams. Please see the following web resources for more information concerning patches for your specific hardware configurations
Sis Chipset Patches (particularly 7001)
http://www.usbman.com/Guides/SiS USB Tips and Tricks.htm
If you are still experiencing problems with your Fiberbyte device after exhausting the tips and suggestions in the links above, a PCI/USB upgrade card is the solution. A list of Fiberbyte tested and approved PCI/USB upgrade host controller cards are shown in this link.
Keep in mind that USB 2.0 cards require two (2) IRQs. One IRQ is for USB1.1 functionality and the other is for the enhanced USB2.0 functionality. Make sure that the new card does NOT share an IRQ with any other device and it is generally good practice not to install the new card in the first PCI slot. It is recommended not to buy a VIA based PCI/USB card as testing has proved them to be unreliable on systems with existing USB problems.
Additional issues please contact us:
support@fiberbyte.com
