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Thread ID: 123196 2012-02-09 21:41:00 USB Problem Richard (739) Press F1
Post ID Timestamp Content User
1258355 2012-02-09 21:41:00 All my peripherals connected through USB have not worked since boot-up this morning. I have checked BIOS and all is enabled. Any ideas on what to look at next. Richard (739)
1258356 2012-02-09 22:15:00 Try removing all USB devices from device manager. Start with all the USB root hubs.
Make sure you have a ps2 keyboard and mouse!
Restart pc and it will redetect the USB ports and install the drivers again.
Hopefully USB devices will also be reinstalled and start working again.
CYaBro (73)
1258357 2012-02-09 22:32:00 Hi CYaBro. I tried uninstalling the root hubs and host controllers, but all I get is the 'not responding' message after a few minutes. Richard (739)
1258358 2012-02-09 22:47:00 > Richard (739)
1258359 2012-02-10 20:07:00 Bump!!! Richard (739)
1258360 2012-02-10 20:40:00 Perhaps shut down and unplug your USB devices, then start up again.

Then, shut down and plug them back in, start up and see if they work.


Since nothing on USB works it could be a sign that the USB power rail from your PSU has issues.
Agent_24 (57)
1258361 2012-02-10 21:39:00 I think you may be on the right track Agent 24. I have tried all the reconnection tricks I can think of, but the whole USB side of the machine seems to be dead. I guess I will have to take it in next week, as I doubt now that it is a DIY job. Thanks anyway. :thanks Richard (739)
1258362 2012-02-10 23:49:00 Fixed it! Used the old Sky TV trick of closing down computer, removing power plug from the back, waiting a couple of minutes, and powering back up again. Seems it resets something in the power supply, as all is now working. Ah, the mysteries of electronics. Richard (739)
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