Transcription: I've removed three screws from the back of this desktop case and to remove the lid itself it's just a question of pushing the whole unit backwards and then lifting it off. What we're going to do now is to replace this original Pentium processor here which you can't see because of the fan on top of it with a new faster overdrive processor. The first thing to do before you really touch the inside of the computer at all is to earth yourself just by gripping the metal frame of the machine or touching the power supply here. Of course this isn't going to do anything unless you've still got the power ...
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