So what’s the big deal ? (cont.)


However, some components can just be damaged and appear to work but not particularly well i.e. ‘walking wounded’. As time goes on, they will degrade and will eventually stop functioning. The consequence of all of this is that the PC may not be very stable and may crash a number of times during the ‘walking wounded’ stage.


So where do these spikes come from ?


Unfortunately they can come from anywhere, in fact other appliances within the home can generate spikes etc., but these tend to be small spikes (unless due to old/faulty appliances).


Probably the worst culprit is mother nature with her lightning storms. A spike from a lightning strike can be phenomenal - producing millions of volts not just a couple, and the duration can be large.  There is a misconception that lightning has to strike a cable to cause a mains spike.  However it only has to strike close to a cable which can induce EMF (Electrical Magnetic Flux) that could produce a massive spike on the mains cable.