?
Solved

USB and unknown device problem

Posted on 2003-03-01
18
Medium Priority
?
543 Views
Last Modified: 2008-03-03
I bought a new computer at a show thinking how hard can it be.  Well it is much harder than I thought.  I got most everything set up except 4 out of my 6 usb ports.  The motherboard is intel and I installed all of the latest drivers for it.  I have 6 usb ports.  2 are with the integrated network card and I don't know where the other 4 are.  I had my mouse plugged into one of the 4 and it worked fine. Then I tried to plug in a digital camera to one of the other 4 ports.  I lost my mouse and now none of the other USB's work.  If I go to device manager, I see 2 Standard universal PCI to USB host controllers.  One has my mouse attached and is OK.  The other has unknown device under the root hub.  I cannot get rid of it.  I have removed it tons of times but it always just loads the unknown device and will not let me change it.  The software for the camera is installed and I have tried to reload it with the camera attached and not.  Now my wife is yelling at me telling me I should have just got a Dell and I am Bummin.  Please Help!
0
Comment
Question by:samdonato
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
  • 2
  • +6
18 Comments
 

Expert Comment

by:motherboard
ID: 8048099
ok

you may need to go into the BIOS and under Intergrated Peripherals choose enable On board USB. Its usually at the bottom of the screen or you need to scroll down to get to it, enable the Onboard USB and go back to the device manager and check that the problem within the USB driver section is no longer there.

Motherboard
0
 

Expert Comment

by:motherboard
ID: 8048122
Also

and another thing is that there maybe an error code associated with the actual driver, I need to know this code if there is one so i can diagniose it,

mobo
0
 

Author Comment

by:samdonato
ID: 8048183
First, thanks for your quick response.  #1, i go into the bios and the only thing I see for USB is under advanced and there is legacy USB support enabled.  That is all I see.  As far as error codes, right now there is a yellow ! and the error code is 10.  Sometimes in the course of me trying to fix it it becomes a 22.  When I try to update the driver, it tells me that the best driver is already installed.

thanks,
Sam
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Expert Comment

by:qbert123
ID: 8050435
What Operating system? Did you remove the camera software, or just reload it on top of itself? I,ve seen this happen when you don't follow the install instructions to the letter. If you can, remove the camera software and driver ,unplug the camera then restart the comp. see if the flag goes away.
0
 

Author Comment

by:samdonato
ID: 8054262
I am using windows 98 but I don't think it is the camera.  It says unknown device no matter what is connected.  It is like it is stuck.  Like there is something attached when there is not.  I wish I could just get it to list the empty usb.  that would be progress.  when I remove the whole PCI to USB host controller, and reboot with nothing attached, it still finds the unknown device??????????
0
 

Expert Comment

by:WJStroup
ID: 8054606
This isn't an easy one, but we can take you back and try again.

First, delete the related .inf file in C:/Windows, to keep the operating system from thinking this device is already installed and just missing the driver (after we do the next step.)

Second, open the device manager, select the "View by connections" radio button, find the PCI Bridge, and delete it. (Yes, I said delete it. Don't freak out, it will reinstall on reboot.)

Third, reboot you system and try the installations again, this time install the "problem" device first, then go for the functional one.
0
 
LVL 1

Expert Comment

by:Covenant
ID: 8056995
Er, which motherboard is this?

If the mobo has onboard USB2 you will need USB2 drivers from Intel or VIA - until you install them it will show an unknown device under USB.
0
 
LVL 1

Expert Comment

by:Covenant
ID: 8057003
Just re-read your post - its the Intel USB drivers that you may need.
0
 
LVL 1

Expert Comment

by:JMansford
ID: 8057282
Have you installed the Chipset driver software? Or are you running with default Win98 drivers?

It sounds like you have a relatively new Mobo if it's got 6 USB sockets.  I would recommend going to www.intel.com and downloading the chipset software for your chipset.

A lot of the devices shown as 'standard' or 'generic' should then disappear.
0
 

Author Comment

by:samdonato
ID: 8058915
the first thing I did was to install the latest chipset drivers from Intel.  I installed them before installing any other software.  

When I did this, Those USB ports worked fine, I had my mouse in one of them.  

I then plugged my digital camera in another one and I lost use of those ports.  The mouse froze and it will not reckgonize anything since that point.  Now I have nothing plugged into those ports.  I have removed the pci bridge and restarted several times trying anything I could think of, but it only says unknown device.

Would it hurt to reinstall the Intel drivers?
0
 
LVL 1

Expert Comment

by:Covenant
ID: 8062856
Did you load any 'drivers' for the camera?
If so, uninstall them then try re-installing the usb ports.

0
 

Author Comment

by:samdonato
ID: 8072197
I uninstalled anything to do with the camera, removed the usb controller, rebooted and it reloaded the PCI to USB controller, the root hub and the friggin unknown device.  

Would anything bad happen if I reloaded the chipset drivers?
0
 
LVL 1

Expert Comment

by:JMansford
ID: 8072281
It's remotely possible that the ports are damaged.  However, I think you'll only really know by completely rebuilding the machine.
0
 

Expert Comment

by:ChartChecker
ID: 8581104
Thank God!  Someone with the same problem I'm having!  Took all the same steps as above except for reloading the chipsets.  Did this work for you???  It's probably not a port problem as I had another device hooked to this particular USB before and it worked fine, but I sinced moved that device to another USB or got rid of it (can't remember which peripheral it was).  Similar to Sam, it looks like the software for that prior device installation is now causing this mysterious "unknown device" problem.  Is there a way to figure out which device XP thinks it's finding?  
0
 

Expert Comment

by:yobigalz
ID: 8905547
Install Unknown Device Identifier( Free) http://www.zhangduo.com/unknowndeviceidentifier.html
0
 

Expert Comment

by:ChartChecker
ID: 10486019
Unknown Device Identifier provides no information on the device. Tried all of the Microsoft suggestions at http://support.microsoft.com/default.aspx?scid=kb;en-us;314464&Product=winxp and none of those worked for me either, but perhaps they will help someone else.  For me, whenever I restart my machine or whenever I plug any USB device into these 2 problem ports, XP loads the Unknown Device, so I would say the ports are working.
0
 

Accepted Solution

by:
amp072397 earned 0 total points
ID: 10527570
PAQed, with points refunded (75)

amp
Community Support Moderator amp~at~experts-exchange.com
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Firmin
The 5 R's 1. Repair 2. Restore 3. Reinstall 4. Remote admin 5. Run away OK so I'm not the most skilled engineer around but I definitely have an abundance of experience: electronic repairs since I was 13 and PC and computer hardware repair…
There are many software programs on offer that will claim to magically speed up your computer. The best advice I can give you is to avoid them like the plague, because they will often cause far more problems than they solve. Try some of these "do it…
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
Suggested Courses
Course of the Month12 days, 12 hours left to enroll

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question