Reference number: CH000629
Unknown PCI device in Windows Device Manager.
Question:Unknown PCI device in Windows Device Manager.
Cause:
This issue is caused when
Microsoft
Windows does not properly detect the
chipset
and/or video
display.
Answer:Corrupt or missing motherboard / Chipset
drivers
Install
or download
the chipset /
video
drivers
that came with your
motherboard
and/or computer.
If you or someone you know built your computer you should have
motherboard CD,
this CD will contain 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 / motherboard drivers does not
resolve your issue make sure you have the latest drivers installed
for your video card. A listing of video card drivers can be found on
our video card driver page.
Other PCI device that Windows is unable
to identify If you have tried the above two steps and your Windows Device Manager still contains an Unknown PCI device it is likely that the
device cannot be identified.
If you are attempting to install a new hardware
device into the computer and know what the device is that is not
being identified we suggest you obtain the latest drivers for that
device. A listing of drivers can be found on our
drivers page.
If you have just finished reinstalling or installing Windows onto
the computer and are getting the unknown device and you are unable
to determine what PCI device is not being detected it is suggested
you manually identify the PCI device through the registry by reading
document CH000632.
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