Microsoft KB Archive/305871

= Device Manager Lists ATI RAGE 3 Mobility Video Adapter as a Disabled &quot;Unknown Device&quot; After Upgrade =

Article ID: 305871

Article Last Modified on 10/18/2001

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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This article was previously published under Q305871



SYMPTOMS
After you install Windows XP on a computer that has an ATI RAGE 3 Mobility video adapter, Device Manager lists an &quot;Unknown device&quot; under &quot;Other devices.&quot; A yellow circle with a black exclamation point on it appears next to this &quot;Unknown device.&quot;



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
You can ignore this issue. Although the &quot;Unknown device&quot; Plug and Play Identifier does point to the ATI RAGE 3 Mobility video adapter, Device Manager enumerates the video adapter correctly, and the video adapter functions normally.

Keywords: kbhardware kbprb kb3rdparty KB305871

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