While doing DVD copying my pc slows down considerably. Lately I've been getting vertical red lines on screen and the pc freezes up and I have to restart it...Could it be my graphics card or processor going bad?
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Looks like 250W PSU(Power Supply Unit) and if you apply 15% capacitor aging, it comes out at 260W on Extreme calculator. Try a new PSU. Try to borrow a 350W from a friend and attach it to your system for testing.