This issue is caused when Microsoft Windows does not properly detect the chipset or videodisplay.
Corrupt or missing motherboard or chipset drivers
Opto Port Devices Driver Updater
Updated Dec 20, 2009: New EXE ASCOM driver setup and for current availability. Updated Dec 20, 2009: Verified functional for Windows 7 device driver and ASCOM driver up to ASCOM 5.5.1. Updated Dec 20, 2009: One windows and ASCOM driver for all versions of Windows. Updated Sept 30, 2009. Updated link for mainstream PHD on MAC download. Next find the USB COM device listed under Other Devices or Ports 13. Right click and select Update Driver Software 14. Select the Browse My Computer and navigate to the OptoBlue Driver CD. Be sure the Search Subfolders check box is checked.
Download and install the latest chipset and video card drivers. If you or someone you know built your computer, it came with the motherboard CD. This CD contains the chipset drivers. Otherwise, you can find drivers for all the major chipsets on our motherboard drivers page.
Corrupt or missing video card drivers
If installing the latest chipset or motherboard drivers doesn't resolve your issue, make sure you have the latest drivers installed for your video card. For a listing of video card drivers, see our video card drivers page.
Opto Port Devices Driver Device
Other PCI device that Windows cannot identify
Opto Port Devices Driver
If you tried the above two steps and your Windows Device Manager still contains an Unknown PCI device, likely the device cannot be identified.
Opto Port Devices Driver Ed
If you that the device not being identified is installed, we suggest you obtain the latest drivers for that device. A listing of drivers is on our drivers page. Motorola bluetooth devices driver downloads.
If you have recently finished installing or reinstalling Windows onto the computer and are getting the unknown PCI device, we suggest you manually identify the PCI device through the registry.
Additional information
Opto Port Devices Drivers
- See the PCI and drivers definition for further information and related links.