friend of mine has a p4p800 mx asus motherboard and I can get no usb ports working. Hardware manager in windows can recognize the ports, but it can't recognize the devices. Same in the bios. Usb ports are enabled in bios but it can't recognize anything.
I have a P4P800-MX motherboard given to me by a friend who upgraded his desktop, it also has the USB problem. Unfortunately this is a known issue, I read numerous posts on a few forums, may have been the ASUS site itself detailing the problem. A few P4P800-MX owners had returned more than one board while it was still under warranty. The best solution was to buy a USB 2.0 PCI card and and not use the on board ports. A few owners mentioned that devices connected to the faulty ports became damaged so I'd really recommend not using the on-board USB ports.
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Re: NO USB WORKING
Hi there what OS do you have loaded?
Im assuming you have XP loaded..... have you tried to unistall and reinstall the USB ports?
reboot and restart,
should auto recognise the device and self install,
reboot and restart,Test usb
dont for get SP2 updates for functionality of the devices
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Hi, There are basically 2 reasons why USB ports will not work besides being faulty. 1. The drivers are not installed (inf files) 2. The ports on certain motherboards can be disabled in the CMOS or BIOS setup.
To check if the USB drivers are installed you can open control panel>device manager. Scroll down to "Universal serial bus controllers and make certain these are present and installed correctly.
Also make sure your USB device is functioning properly by plugging in to a USB port on a different computer.
Please let me know if you need any further assistance. Best wishes, Graemevm
first check the battery inside the mouse make sure it is fully charged and well seated make sure you have the right mouse selected click start control panel mouse hardware you will see which mouse is selected you might have to uninstall the mouse then restart your computer then reinstall the mouse and its drivers make sure the battery is good (has full charge)also you might test the usb device for the mouse is inserted correctly into the usb port (if applicable) click start right click on my computer select properties device manager control scroll to mice and pointing devices you might see a yellow question mark? right update driver click start control panel mouse you should see 4 tabs buttons,pointers,pointer options and hardware under hardware you can troubleshoot also you can select properties under driver you will have options to update driver,rollback driver or uninstall and under hardware you can troubleshoot also click start control panel administrive tools computer management device manager scroll to mice and other pointing devices you might see a yellow exclamation mark !or question mark ? or a red x right you will have options to update driver software,disable,uninstall,scan for hardware changes and properties hope this helps
You can download the drivers from ASUS WEB site. Selectyour model motherboard/computer/laptop, and make sure you select the Windows XPor Vista version of the drivers that matches your Windows operating system.Please click on this link to their WEB support site : -
it would seem that you are not the only one with this problem with the USB's, the only soloution i have found that people say works is to reset the cmos (remove motherboard battery without any power cord attached) for 10 mins, or, go into the bios and reset to default/optomised defaults
Reinstall your USB drivers: Navigate to Device manager, find a branch named "USB Controllers" or similar Right click the one thats the problem (or all of them if you dont know which), select Uninstall Reboot your machine and windows will autodetect the USBs and reinstall their drivers
Check the BIOS and see if they are enabled...
Disable power management on the USB hub To preserve power, Microsoft Window XP tries to disable USB when a device is not used. Under certain circumstances this function does not work and may cause USB devices to fail to respond when called. To resolve this issue, disable power management on the USB hub by doing the following:
Click Start , and right-click My Computer .
Click Properties , then click Hardware .
Click Device Manager .
Double-click the Universal Serial Bus Controllers branch to expand it.
Right-click USB Root Hub , and then click Properties .
Click Power Management .
Deselect Allow the computer to turn off this device to save power .