|"I have tried:|
-Removing all USB devices from the system.."
Did you unplug them all?
"-Updateing the BIOS"
Never flash your bios unless you find specific information in release notes for the update that mention the problem you are having.
Besides, it sounds like you weren't getting the message previously when the USB 2.0 controllers were enabled, so there was nothing wrong with the bios version you had.
Go into you bios Setup and check the current voltages. If any of +3.3v, +5v, or +12v
are not within 5 to 10% of their nominal value, your power supply is defective and must be replaced before it damages your mboard, assuming it hasn't already. If +5v is out of whack, the USB controllers won't work properly; if it is too high, that will eventually damage them.
If the voltages seem okay, or in any case....
Remove the AC to the computer/power supply.
Pull off all connections inside the case to USB headers on the mboard.
Unplug all USB connected devices.
Enable USB 2.0 controllers in the bios Setup.
Try the computer.
- If you still get the overcurrent message, the mboard is defective. You will have to either leave USB 2.0 controllers turned off in the bios Setup, and get a USB 2.0 controller card to connect USB 2.0 devices to, or replace the mboard.
- If the overcurrent message no longer appears, you need to connect to the mboard USB header(s) differently. (don't connect to any 5th pin, a second ground or overcurrent pin, for a USB port on the mboard header)
Also - a possibility.
Some mboards, e.g. Asus, have identical headers and pin arrangements for two port USB headers and firewire headers. Make sure you don't have the USB wiring connected to a firewire header, or visa versa. There is no immediate problem when no device is connected to a port, but when a device is plugged in it will damage the mboard circuits and possibly the device you plugged in.