inspiron n5110 right USB 3.0 smoking

[geo337]

I have a dell inspiron N5110 (which i bought about 8 months ago) I recently bought a cheap cooling pad for it, it worked fine for a couple of days until one day i was connecting it to the USB port on the right side of my laptop -near the headphone and microphone jacks- when I heard the sound of a spark and the system restarted, of course I immediately removed it and shut down the computer but then I smelled smoke (molten plastic smell) coming from the side of this port.
I left the laptop for a while and then I checked if it still worked, the laptop started fine even the USB that produced the smoke worked (I tested it with a flash memory) I even started my wifi adapter to check and it worked the only thing that worries me is that there are three buttons near that USB port and they used to illuminate but they have stopped illuminating. what should I do?

P.S. the function of these three buttons are open windows mobility center the other opens dell support center and the last turns the screen off

Thanks in advance

 

[das_stig]

Get it fixed under warrenty, psst keep stum about the cooler, Dell may use it as an excuse not to fix it.

 

[geo337]

The problem is that I live in egypt and the customer service ... well it really sucks so I need a second opinion, I got back to using the laptop ( I'm writing this from it now) and it's working fine , the question is could this problem get any worse? I leave the laptop working for hours with me sleeping , I don't want to wake up and find it molten on my table.

 

[tcflorea]

My USB was stopping working one day reportedly because there was a surge on that port. I lived with that many months until recently. When I opened the memory cover I found that a small metal piece there around that cover was missing and I found that piece of metal clogged in the usb connector (specifically right side as in your case). I managed to get that out and the USB is back to life. Lucky or what?

 

[geo337]

I know that my answer is very late but late is better than never.
thanks tcflorea but no it wasn't the small metal piece (although i actually lost one inside my laptop and worked with it for days until one day i noticed the ringing sound it made. luckily it caused no surge)
the problem wasn't at the usb at all it was the cable that connected the 3 buttons to the motherboard, I found its most right wire molten, I don't know exactly what happened maybe when I inserted that cooling pad I somehow short circuited something or maybe the wire was badly covered. anyway no permanent damage caused (thank god )
Thanks again.