Let me start off by saying, since I don't know what the problem is, I'm not sure exactly where to post this, so I'm sorry if it is in the wrong category...
The problem is that at random intervals, my keyboard and mouse stop working, regardless of what USB ports they are plugged into. It can be USB 3.0, or 2.0, front panel or back, doesn't matter.
I have a Logitech G500, Razer Blackwidow Ultimate, and my MoBo is an Asus Sabertoothe z77.
I will be happy to provide more specs if nessicary. Like I said, this happens at random intervals, normally lasting between 5 and 30 seconds, which is, as I'm sure you can imagine, quite annying while gaming. This seems to have just randomly happened, not slowly developed over time.
I have not noticed other USB devices being affected by this (ie. Blue Snowball, Controller, Flash Drives, etc.,) but it could be that I just haven't noticed it and it is happening. I would prefer not to have to buy a new Mobo to fix this, so any suggestions would be great.
I have tried checking for driver updates, but seems to be of no help.
ALSO: It seems to get more frequent the longer my PC has been powered on, if that means anything...
Thanks in advance guys, as this has it made it impossible to do just about anything on my PC
So I finally solved this. It turned out to be my mouse after all! I got my G500 replaced for free by the G500s, and they didn't even make me return my old one! Logitech is great like that. I did however, end up buying a Razer Deathadder 2013, which is really great. While my USB ports in the back still have issues, enough of them work for me to live with, so this problem is solved! As for the keyboard and other devices turning off, I think the mouse must have been shorting back into the USB terminal and momentarily shutting everything down.