Unknown PCI device

Question

When I scan Device Manager in Windows 2000, I see a heading for "other devices" and when I click on it, I see a PCI device described as "Unknown". I'm told that the drivers for that device are not installed and I can't install them. The device is described as "PCI bus 0 device 31 function 3" and I have no idea what it is as all the PCI devices used by my PC are properly installed. Any clues?

bdt912 · Answer

Did you try to 'Remove' the device and re-boot to see if it goes away? I am not familiar with Win2000 but with Win98 there is a Remove button in Device Manager. Dimension XPS-T (iP3/T 1.2GHz Celeron) 384MB PC100 SDRAM Quantum Fireball AS 20GB, 7200rpm, ATA/100 (Win98) VisionTek GeForce3 Ti200 Toshiba 6x DVD-ROM US Robotics V.90 56K Faxmodem PCI Dimension V400 64MB PC100 SDRAM Western Digital 9GB, 7200rpm, ATA/33 (5GB Win98, 4GB Linux) Maxtor ATA/100 Controller PCI ATI Rage Pro 8MB on-board AGP ATI Radeon 32MB SDR PCI Yamaha 8x8x24 CD-RW US Robotics V.90 56K Voice Winmodem PCI Zip drive (disconnected) HP LaserJet 1100 HP ScanJet 4300Cse HP PhotoSmart 315

Marvin P · Answer

steven_a_horn,

This Microsoft KB article may help;

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q244601

PS I strongly suspect Volcano11 is right however.

Good Luck,

Marvin P

XPS B800r
512MBz Ram
Windows XP (2/1/02)
&
8200 1.8G
512MBz Ram
XP
&
Truck Vanity Plate "Dell4Me" (Maine)

Message Edited on 05/05/02 12:30PM by Marvin P

volcano11 · Answer

steven_a_horn, It would be quite helpful if you told us what model computer you have. If you have an 8100, I suspect that the unknown device is the useless E-support button. Steve

steven_a_horn · Answer

Steve, I have a Dimension 4100 which does not have an E-button. It does have an AGP video card and five PCI devices in Slots 1 to 5 which all work.

steven_a_horn · Answer

This Microsoft knowledge base article does help but only up to a point. I have more checking to do and will report back.

steven_a_horn · Answer

Windows 2000 has an Uninstall button but if I do that, the phantom driver simply re-installs itself when the system next boots up. It does no harm as I can disable it but it is frustrating.

Oddly, it may be related to my Intel 82801 BA Ultra ATA Controller as this has the address of PCI bus 0, device 31, function 1. The miscreant device has the same bus and device address but its function is 3.

Steven

fix-it · Answer

The unklnown device is your chipset drivers. Here are instructions: http://support.dell.com/us/en/kb/document.asp?DN=1036989 Jerry

steven_a_horn · Answer

Thank you. I suspect this will make me much happier. :-)

steven_a_horn · Answer

Again, many thanks. I now have my SMBus driver back and no yellow question marks in my device listings. All in all, a great improvement. Steven

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Unknown PCI device

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