Hi everybody i have a problem with my USB under windows 7 64 bit. Whenever i seem to do any intense activity that is using USB the USB ports stop working. When i say intense activity, i mean copying over a large file to a jump drive or external drive, burning a DVD on external DVD drive, etc. My game controllers, mouse, and Mic headset all work fine and don't cause the USB to malfunction. Any help would be greatly appreciated, thanks. i have reinstalled my motherboard drivers and aside from that i have no clue what else to do. I did not have this problem under XP