- Mar 6, 2000
- 956
- 73
- 91
Gigabyte GA-970A-UD3 MB... came home and the system was locked up. Restarted it and it took several minutes for the mouse and keyboard to start working before I could even enter my PW. When I checked DM, it shows "unknown device" in the USB list- and every time I restart, I get a popup in the corner saying that one of my USB devices has quit working and I should check it. No new devices have been added in months. I think one of the USB controllers has gone bad but I'm not sure how to check it. I moved the mouse and keyboard from the USB ports next to the old style mouse plug down a couple of ports lower on the MB and the mouse and KB work instantly on boot-up like they are supposed to but I still have the DM problem. Any suggestions on how to proceed? I will add that the heat sink on what I guess is the northbridge is quite hot- 162deg F.