Microsoft KB Archive/254979

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COM Ports Not Working Using ASUS Motherboard

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Q254979

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The information in this article applies to:


 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional
 * Microsoft Windows 2000 Server

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SYMPTOMS
After you install Windows 2000, the communications (COM) ports and any devices connected to them do not work. If you check in Device Manager, you may see the COM Ports are missing or displayed with a yellow excalamation mark (!) and a code 10.

If you add the ports manually, you do not correct the issue.

CAUSE
This issue can occur if there is a problem with the BIOS in the computer.

RESOLUTION
To resolve this issue. contact the computer manufacturer regarding a BIOS update. For more information about this issue, please visit the following Asus Web site:

"http://www.asus.com.tw" The third-party products discussed in this article are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

The third-party contact information included in this article is provided to help you find the technical support you need. This contact information is subject to change without notice. Microsoft in no way guarantees the accuracy of this third-party contact information.

MORE INFORMATION
This is known to occur with the Asus P2B and P2L series motherboards.

NOTE: This may occur on other ACPI-based computers.

Additional query words: P2B P2B-B P2B-F P2B-S P2L-B P2L-M P2L-N P2L97A P2L97-S

Keywords : kb3rdparty kbhw KBW2KHOME

Issue type : kbprb

Technology : kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbWinAdvServSearch