Computer lags, then freezes, sometimes shuts down HELP

Even right now my computer is lagging on the browser. When attempting to play games or use any programs it lags until it freezes and a buzzing sound occurs. Is it a hardware problem?
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  1. Probably the RAM going bad. I'd run memtest86+ one stick at a time and see if one gives you errors.
  2. crewton said:
    Probably the RAM going bad. I'd run memtest86+ one stick at a time and see if one gives you errors.


    Yes, I would do the same thing.
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