Hey guys... Recently I had a problem with a computer that the motherboard was fried, so I had to buy a replacement. The weird thing here is, I replaced the motherboard, and everything works great, except the computer doesn't recognize ANY usb device... No Keyboard, no Mouse, no Storage Device, nothing! The original Hard Drive was running Windows XP so I thought probably it would be software or driver issue, so I plugged in an external hard drive that has Windows 8.1 installed as a bootable option. Same thing happened on Windows 8.1 No USB device recognized, only the popup that say that the device was not recognized... Any ideas on what the problem could be or how to solve it?