After I installed the new Bios version 86A.0039.EB on an DH55HC Motherboard with an i661 processor and WIN 7 x32, all the USB Ports, back and also front panel, are dead! There is still power on the ports, the 2,5" external HD does still start when pluged in, but the board does not see the devices, wheter ist is a HD, USB stick or USB mouse and keyboard.
The system and Windows still starts with no warning, but I have no mouse and no keyboard to use!!!
What can I do now?
Problem solved! The bios update is disabling all the USB ports.
Not only USB must be enabled, but all the ports for themself too!
Uff, all working now!