Power surge on usb hub port in compaq nc 6120

OK if you have anything plugged into the USB Ports at bootup, unless Keyboard or Mouse, remove everything, and see if it boots normally, if it does, then the "Hub" you are using may be faulty, or a device you are using is drawing a lot of current at switch on and overloading the USB bus, that can only supply 500mA. If it still does it, and you do use a USB KB & Mouse, then remove them one at a time & reboot, between, and see if it was one of them causing the problem. If you have nothing attached then your internal USB bus is flaky.

HI
One option is to disable the message from appearing.
Here are the steps:
Go to the Device manager, expand Universal Serial Bus controllers, right click any of the Host controllers, click properties, go to the Advanced Tab, Check "Don't Tell me about USB errors" OK...

your usb hub is exceeding the power limit or you are attaching a device that is extracting more more , use a USB 2.0 port HUB with a power adapter if you are attaching more devices on hub

check all of your usb ports to make sure none of the contacts are touching each other and none have broken

You may need to upgrade to a higher wattage power supply, which would also help with the performance of your computer. Or try updating either your system bios or USB drivers.

hi, Please reinstall the chipset drivers and "Turn off the error messages from Device Manager => USB Host Controller => Advanced Tab => check mark "Don't tell me about USB errors"

Don't Use existing USB Portn On your Comp if u want USB port then install PCI USB Card From the PCI USB card you can use your USB Device what ever you want to use

Thanks
Ankur

Some USB devices draw excessive power from the USB port, especially USB scanners. When this happens you need a powered USB hub, connect this to your computer's USB port and connect the USB device into the powered USB hub, you should not have any further error power surge problems.

Problem :Overvoltage on USB hub port
Solution: Look carefully at that same port and you will four gold pins make sure they are NOT touching each other..

1st prob. - I appears there is a loose connection problem somewhere - try reseating your RAN and hard disk.
Try to determine which part of the laptop is causing the problem, not moving the laptop around the room but by flexing different parts of the laptop and power cable etc. while it is on your table.

2nd prob -
Some USB devices draw more power than the USB port can provide and you get the error message - "exceeded power limit".
In these cases you will need to purchase a powered USB hub, connect this hub to the laptops USB port and connect the offending USB device into the powered USB hub.