I am having a problem with my Dell inspiron 9200 .
A few weeks ago my laptop started to flicker from ac to batt. and right back again once in a while.
then recently I started to notice that when I plugged it in there would be a crackling noise in the back near the ac jack. I think I found online that there is a problem with dell's ac jacks solder connections coming loose and shorting out. So I figured that was my problem.
I also more recently began getting a strange message saying that the device in the usb port was not recognized--- even know I had nothing plugged in. and now it jst freezes up completely after a few minutes. I did smell a slight burning smell one night before the freeze ups started
My question is -- Is my motherboard fried??
what is up?
thank you guys in advance