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Having problems with HP DC5100SFF. The USB ports do not recognize devices all of a sudden. Using XP Pro SP3. One port works sometimes, but the others say can't find the driver.

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Hi
I think installing the proper drivers for your motherboard and operating system should work.
Find your drivers here (scroll down to see the available drivers and make sure you install the drivers for your operating system) or on the cd that belongs to your motherboard.

hi, see if you have installed any new devices/hardware to see if its conflicting, often grafics cards conflict usb devices, also just check that in the setup(when you boot up)that the usb ports have not been disabled or usb keyboard support hasn't been enabled/disabled. good luck!!

Posted on Dec 07, 2008

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Have you gone into device manager to see it the USB ports are active? Try this go to device manager, remove the USB ports from the list of devices, then restart the PC, the system should recognize the USb ports and reload them and their drivers, you can also go to HP support on the net and email there support, it is free for life and they really know there stuff.

Posted on Dec 07, 2008

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Better uninstall the driver file completely and once again install the driver file from the Hp website with proper updates .

Also check whether that particular port is blocked (the port which says cant find driver ).

Posted on Dec 07, 2008

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Hey,

You may have to uninstall sp3 to get them to work again, then you could try installing sp3 again.
this thread maybe helpful
http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=3311579&SiteID=17

Posted on Dec 07, 2008

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My usb ports are not recognizing any devices such as my iphone, ipod, etc. I have a dell dimension 4700 runnning win xp sp3


It seems that many people are still getting the 'USB Device not Recognized' problem from time to time. Unfortunately there is no easy fix.

Firstly, it's recommended that you make sure every one of your motherboard drivers are completely up-to-date, but you probably already knew that.

In XP, after a USB port isn't used for a long while the USB driver built into the OS sets the OHCI controller to suspend. When you plug a device back in, it can sometimes fail to 'wake up' properly. This problem was supposedly fixed in SP1 but there is a related registry hack that may still be able to help.

Run regedt32.exe and navigate to;

HKEY_LOCAL_Machine\SYSTEM\CurrentControlSet\Services\Usb

Create the Usb key if it doesn't already exist. Under this key, create a new DWORD value called DisableSelectiveSuspend and give it a value of 1. Then restart the PC.

A long shot perhaps, but I recall having similar problems with a USB hub built into my Microsoft keyboard and adding this key seemed to solve it. It wouldn't hurt in trying icon_smile.png.

Alternatively, removing all entries relating to USB in Device Manager and all associated USB drivers will force XP into refreshing the USB driver stack.

Begin by unplugging all USB devices, then use Add/Remove Programs in Control Panel to uninstall any USB driver software. Next, boot up into safe mode and go to Device Manager. Once in device manager make sure 'Show hidden devices' is checked under the View menu. Uninstall all device entries in this order;

1. USB peripheral devices (printers etc.)

2. HID and/or Composite USB (Human Interface Devices) You're using PS/2 input devices so you may not have this entry.

3. USB Root Hub(s)

4. USB Host Controller(s) (Universal or Enhanced Host Controllers)

Then boot back into Windows (not safe mode) and it should populate the Root Hubs & Host controllers again. Proceed to plug your USB devices back in, starting with your powered hub. Be aware that most USB printers and scanners need to have their drivers installed first before you plug them in.

Any doubts you can get the help of a technician through

www.thebestpcdoctor.com

Toll free: 877 407 9229

Dec 04, 2010 | Dell Dimension 4700 PC Desktop

1 Answer

I am having a problem with my computer (e-machines T5082). I does not recognize any devices plugged into the USB ports. Printer, cameras, Zune, ect. They have power because my speakers draw power from a...


Greetings....

Please try to check if your USB port both rear and front USB port are not defective. Most common problem of defective usb ports are when plug your usb devices it won't recognize the device you inserted. So to make sure that your USB Ports are not the main cause why your computer won't recognize devices you inserted.

Nov 03, 2009 | E-Machines T5082 PC Desktop

1 Answer

All USB ports on my emachines T6542 do not work


try to see the BIOS SET UP if the USB port are in enbled status..

if its not,, enabled them...

and see the connection of the USB port into your motherboard if it connect properly..

Oct 27, 2009 | E-Machines eMachines Desktop PC

1 Answer

Gigaware microphone 33-124 no sound with Windows XP SP3


Does it show a message like "unknown device" in winXp? then probably it needs an installer in order for a device to work properly, but if its working in the other computers running winxp then probably your own computer you are using have a problem with the usb ports on it. Hope this could help..

Oct 23, 2009 | PC Desktops

2 Answers

I am having a problem with my computer (e-machines T5082). I does not recognize any devices plugged into the USB ports. Printer, cameras, Zune, ect. They have power because my speakers draw power from a...


This sometimes happens because it appears that the USBs develop some type of memory and it fills up the USB register. Uninstalling/deleting the USB ports and rescanning for them may resolve this.
Unplug all USB devices except for you Keyboard/Mouse. If you have a spare or your mouse is already a round PS2 instead of USB, this is better.
First thing I would go to my Device Manager. (XP - Right-click My Computer / Properties / Hardware tab at top / Device Manager *** Vista - just click your start button and start typing 'Device Manager' and it should show in your list.) Scroll to the bottom of the list where you see 'Universal Serial Bus Controllers'. Start right-clicking and deleting each individual one. If you have a USB mouse, when you lose control of it, plug it into a different port. You can also unplug your keyboard at this point. Continue until finished.
If your mouse was USB, you will have to push your power button for a moment to restart your computer and redetect all USB ports. If it is PS2, use your mouse and click on the 'Scan for hardware changes' icon at the top of the Device Manager screen. Hopefully this works.

Oct 22, 2009 | E-Machines T5082 PC Desktop

1 Answer

My USB ports suddenly quit working on my IBM Z Pro 6221 59U


Check the actual ports, visual inspection. Look for consistancy of the pins, and guide. If one is bent or missing, that can short out the ports, or blow out the integrated circuit.

If you are using a usb keyboard, try to start up and go into the setup using the keyboard. If you can, the driver for the ports might be damaged, causing the problem in windows, but not in the bios startup.

You can purchase a usb board that can give you new ports, and deleting the usb hub from the hardware manager (check help) and re-detecting the device might repair a damaged driver.

Sep 23, 2009 | IBM IntelliStation Z Pro 6221 PC Desktop

1 Answer

Usb port problem


It MUST be plugged into a usb 2.0 port NOT a usb1.x

Some usb devices only like the usb port they were first installed / used on. Try to stick to using the exact same port

You should not plug it into a usb hub

If you are using an external card reader for your phone card, make sure that it is not plugged into a hub and only use the cable that came with it, not one that fits but didn't come with it.

Also make sure your motherboard drivers are up to date and that there are no exclamation marks by any hardware in the hardware tab from system in the control panel.

If you are still having problems then there could be other issues.

Aug 20, 2009 | PC Desktops

1 Answer

Suddenly my pc re-boots when I plug my ipod into the front usb.


uninstall service pack 3 and ignore it when it asks you to re install it. go to add remove programs and uninstall it. obviously it worked befor. that is the solution. you dont need sp3 anyway.

Jul 18, 2009 | Gateway PC Desktops

1 Answer

My notebook does not recognize any devices that are plugged into the usb ports, sd card, mp 3, or flashdrive, says there's not driver available, to contact manufacturer of device, or install driver. I...


That's what you should do then, go to the device manufacturer’s website and see if they have drivers. It most cases they do for vista, xp, 2000, 98se. If you install drivers and they still are not recognized and no other USB device works either, then you might have bad USB ports and that sometimes means new mother board.

Jul 01, 2008 | Gateway PC Desktops

1 Answer

USB Ports


one way would be to download and install latest device drivers from the net. it should help.. if you are using win XP, there is likely a BIOS or Windows configuration problem. On some computers there is a configuration option in the BIOS that asks whether an IRQ should be assigned to USB. Although the option's actual wording varies among BIOS manufacturers, you must enable this option by setting it to either On or Yes (depending on your BIOS manufacturer and BIOS version). Otherwise no USB devices will work on XP. A problem with Windows XP’s USB Controller configuration can also prevent any USB devices from working. To determine whether the USB controllers are working properly, open Device Manager and expand the Universal Serial Bus Controllers node. Beneath this node, you should see a USB Universal Host Controller and a USB Root Hub. Depending on your PC, there will either be a USB Universal Host Controller and a USB Root Hub listed for each of your computer’s USB ports or a USB Universal Host Controller and USB Root Hub for multiple ports

Jan 20, 2008 | Gateway GT5432 Refurbished AMD Desktop...

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