I upgraded my graphics card from GT 240 1GB GDDR5 to HD 7750 1GB GDDR5 in November 2012.But I am noticing a strange issue recently but have no idea whether the card has something to do with it.
The problem occurs very rarely though it is annoying. During browsing using Mozilla Firefox, the Firefox freezes, then whole system freezes and returns to normal within seconds with a single beep sound...
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