Hello friends, i am having the Dell Optiplex 320 and also worked on Dell Optiplex 745 and 755 and founded that USB is not working on these systems, i am not getting any response about it response from the keyboard and mouse, even the interactive whiteboard is not responding. It is been important for me, as it been used daily. Even try to plugging it properly then also it has not worked for me. I have observe the same thing is been happening on Dell D531 and D630 laptops also. Does anyone else has got the problem which i am getting and also what is the problem. Please suggest me some solution for it. Thank you.
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