Question about Mercury P4VM800M7 Motherboard

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Usb is not working

Some times my system usb have not working

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Hi,
Please go to devicemanager by right clicking my computer and selecting manage option.
Click on the + sign given before USB root hub and uninstall all the values coming below by right clicking on those.
Restart the machine issue should be resolved.
If any err message is coming (like usb power surge ) then intimate me.

Posted on Feb 17, 2009

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Dell inspiron 1525. problem with comstudio virtual adapter... network device im sure base system device. and also usb root hubs all not working missing driver . except one of the usb root hubs are...


Check for spyware. They can stop some USB ports from working. Also. Under system properties and device manager. Scroll down to USB devices. Right click on them and there is an option for. Turning off the power save option.

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As Windows an operating system Toshiba Satellite C655 and C650 laptops and the USB port(s) are not working, run a DIAGNOSTIC TEST.
If the test will reveal that you have no problems with the USB divers, but your ports are not able to recognize the ports the problem may occure from the installed software. It happens that one ore more drivers to generate a "conflict" with that USB driver.Go to SYSTEM RESTORE and check the restore point of an earlier time. This is a SUCCESS AND FAILURE tests so keep rolling back in time until you will make it working.

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Dear Sir, Have Dell laptop Inspiron 1525 with Xp loaded....but external mouse is not working with my system but the USB port are working, Sir i need your assistant how do i do with it. Pls HELP...


Hello,
You will uninstall all the usb universal root hub , and to do follow all the steep.
R- click on My com>Properties>Hardware >Device manager>Scrol the mouse down for select usbhub controller . Now you will uninstall all the usb and restart the raptop again.

If your problem will same ,change the usb MOUSE .
Think it is defected.

Hope it will help you.

Dec 31, 2010 | Computers & Internet

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My USB Ports of Sony Vaio VGN FW235 stopped working


first remove all the USB Devices connected to the Computer, go to Device Manager, uninstall all the USB Drivers and restart the Computer. after the restart, the Operating System should reinstall the USB Drivers automatically as the USB Drivers are Operating System generic.
If this does not work, go to Device Manager, right click on the USB Device having Yellow Exclamatory mark and click on Update Device/Driver and select search for the best driver in these location and in the location type C:\Windows\inf and click next.
This should resolve the issue.
If this does not work, you can try performing the System restore where the USB ports are working normally.

May 26, 2010 | Sony VAIO VGN-FW235J Notebook

1 Answer

Why isn't my system detecting the usb?


You may have probably damaged the connector on the computer, best get it checked out by a technician.

Jan 18, 2010 | Computers & Internet

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Hi, my system not working properly.


I don't think this is a BIOS problem. Sound more like you need to re-load windows and start from scratch. Make sure your USB is turned on in the BIOS.

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1 Answer

System restore isnt working now


not supposed to do another system restore. You are basically re-installing USB devices one by one again so the devices dont have conflict. Be sure to install the driver for the drive first before plugging it in.

Dec 27, 2008 | SimpleTech SimpleDrive Portable USB 2.0...

1 Answer

Usb hub driver with my computer


Press "continue anyway" if the option is available.

It just means that the drivers for your usb have not been tested and confirmed working by Microsoft, this will happen with some 3rd party drivers.

Make sure you have system restore enabled in case the drivers do give you a BSOD as you will need to restore your system to an earlier time

Dec 05, 2008 | IBM ThinkPad T42 Notebook

1 Answer

Usb ports not working


hi,

What device are you trying to connect? was there an error message when you plug in the usb device. try booting up your computer to safe mode with networking.

1. Restart the computer
2. Keep on tapping F8 when you have the HP logo screen, using the down/up arrow of the keyboard choose safe mode with networking. if the device still not working then it could be a problem with the USB driver. You may try restoring your computer back to the working time using system restore. Just go to start then Accessories - System tools- system restore.Restore your computer to a working date.

Keep me posted.

Thanks.

Nov 10, 2008 | HP Pavilion dv6000z Notebook

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Software for USB Controller


check bios enable usb, xp has usb drivers. if still not working, buy add in card, onboard usb may be damaged! i have seen this before many times! also you can try to contact acer,but they are often not helpful! good-day!

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