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Windows 7: Unknown Device

14 Feb 2010   #1

Windows 7 Home Premium
 
 
Unknown Device

Hello All.

I am having a problem with Universal Serial Bus controllers.
(Standard USB Host Controller) Port_#0003.Hub_#0008.

I have un plugged all USBs and still get the error.
If you need more information I will post it. This is on windows 7 Dell i7 435T 9000 CPU.

Thanks For you help.

My System SpecsSystem Spec
.

14 Feb 2010   #2

 

Have you went to Dell support and downloaded any new chipset drivers, if available.
My System SpecsSystem Spec
14 Feb 2010   #3

Windows 7 Home Premium
 
 
Unknown Device

ALL Hardware is up to date.
Thanks for your reply.
My System SpecsSystem Spec
.


14 Feb 2010   #4

XP, Vista, W7 64bit Home Premium
 
 

Can you post back a pic of device manager to show the unknown device - just expand it enough to see the device with the yellow asterisks - it seems to be as others have said to do with the chipset drivers - you can always install the latest version - Windows 7 installation wouldnt install the latest version, as they have only been published in the last couple of months. Version 9.​1.​1.​1025 can be found here - setup a restore point firstly:
http://downloadcenter.intel.com/Sear...90&FamilyId=40

Your driver page -
Drivers & Downloads

You might also install the intel matrix storage manager if you have AHCI enabled in the bios and your using the intel controller rather then JMICRON controller.
My System SpecsSystem Spec
14 Feb 2010   #5

Windows 7 Home Premium
 
 
Unknown Device

I will get back on the Feb/15/10.
My System SpecsSystem Spec
16 Feb 2010   #6

Windows 7 Home Premium
 
 
Unknown Device: " Problem Fix"

(1) Shut down the Computer!

(2) To fix the problem i had to un plug all the USBs.
(3) Un plug the power cord!

(4) Now plug in all the USBs.

(5) Plug in the power cord!

(6) Turn on the Computer.

All is OK now!I hope this will help the next person.
My System SpecsSystem Spec
17 Feb 2010   #7

XP, Vista, W7 64bit Home Premium
 
 

Always good to resolve it yourself - have a good one
My System SpecsSystem Spec
04 Jul 2010   #8

Windows 7 Ultimate (64-bit)
 
 

Quote   Quote: Originally Posted by rjmach View Post
(1) Shut down the Computer!

(2) To fix the problem i had to un plug all the USBs.
(3) Un plug the power cord!

(4) Now plug in all the USBs.

(5) Plug in the power cord!

(6) Turn on the Computer.

All is OK now!I hope this will help the next person.
Thank you!!! It sure helped me! I was about to reformat my hard drive since none of the other "solutions" worked. I tried this as a last-ditch effort. Success!!

Thanks again
My System SpecsSystem Spec
24 Aug 2011   #9

Windows-7 Professional 64-bit
 
 
Unidentified USB Device issue in Win-7 XPS-9000

Unplugging the motherboard from the AC power source is the cure to this problem. There is no need to remove and then put back all your USB devices. Just shutdown your system and unplug its AC power. Wait about 10 to 15 seconds and plug it back. Power up the system and the problem should disappear. This issue happened to me twice already. It showed up several months ago and it happened again yesterday after I hooked-up a USB cable from a printer to my XPS-9000 system. The AC power plug/unplug always do the trick.
My System SpecsSystem Spec
25 Aug 2011   #10

Windows 7 Home Premium
 
 

Quote   Quote: Originally Posted by reygcarolina View Post
Unplugging the motherboard from the AC power source is the cure to this problem. There is no need to remove and then put back all your USB devices. Just shutdown your system and unplug its AC power. Wait about 10 to 15 seconds and plug it back. Power up the system and the problem should disappear. This issue happened to me twice already. It showed up several months ago and it happened again yesterday after I hooked-up a USB cable from a printer to my XPS-9000 system. The AC power plug/unplug always do the trick.
Hello
Unplugging the motherboard is to much work for me.
I just unplug the 4 USB's cables & the power plug "WOW"

Thanks for your answer.
My System SpecsSystem Spec
Reply

 Unknown Device





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