A1: The problem is caused by conflict between installed USB 2.0 driver and one or more other device drivers installed on your system. What you need to do is first, uninstall USB 2.0 driver and then, try to find other device’s driver for any possible updates. So follow the instruction below:
1) Start your computer either by:
a. If your Macintosh has another operating system installed, boot the computer into that operating system by holding the “Option” key immediately after pressing the “Power Button” on your computer. Your computer should give you a choice which operating system you want it to boot into. You should be able to modify the content of the hard drive, which contains the USB 2.0 driver. Remove the USB 2.0 driver files.
b. If you have an OS 8.6/9.x installation CD, place the CD into the computer and boot the computer by holding the “C” key immediately after pressing the “Power Button”. You should be able to modify the hard drive that contains the USB 2.0 driver. Remove the USB 2.0 driver files.
c. If option a or b are not available, you can still remove our USB2.0 driver by logging as root user into OSX. Please refer to FaqsList.asp(faq_OSXroot) for instruction.
2) Find and remove the following USB 2.0 driver files from your operating system:
/Library/Receipts/USB2EHCI….pkg
/System/Library/Extensions/OMI_EHCI.kext
/System/Library/Extensions/OMI_USBHub.kext

3) Restart the computer back into your Mac OS 10.2.x.

4) To have USB 2.0 driver support, upgrade to Mac OS 10.2.8 or above. If you do not wish to upgrade, please try downloading and installing the latest USB 2.0 driver available at www.macally.com/techsupport/drivers.asp, or find if there are any know issue between USB 2.0 driver and your other devices’ drivers. If there any driver updates available, try updating that driver file.

A2: Mac OS 10.2.8, 10.3 and above has built-in support for USB 2.0 controller cards and devices. There is no need to install USB 2.0 driver. However, if your computer is running Mac OS 10.2.6 or earlier, you will need to install USB 2.0 driver for USB 2.0 speed. Drivers can be downloaded at www.macally.com/techsupport/drivers.asp.

If you have OS 10.2.8 and 10.3 or above, installing our(OMI) driver will
cause conflict to Apple OS driver, you might experience some trouble in system. In this case, please follow instruction described in Q1/A1 step 1) and 2).

A3: Mac OS 8.6/9.x does not support USB 2.0 speed. A4: Depending on the ROM Revision of your Beige G3, the computer may not work when a PCI USB 2.0 controller card is installed. For the Beige G3 to work with USB 2.0 controller card, it needs to be either ROM Revision B ($77D.45F1) or Revision C ($77D.45F2). To check which ROM Revision your Beige G3 is, open “Apple System Profiler” in Mac OS 8.6/9.x. On the “System Profile” tab, under “Product information”, contains information regarding “ROM Revision”.