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XPcentric

macrumors 6502
Original poster
The problem is that in the house I live now, there is a very old "electric board", not sure if I use the right term but you can understand what I mean. The electric installation needs repairing because I can hear fireworks in it. Because of that the light bulbs fluctuate, and even inside the power adapter of my mac I can here tic-tic sounds continuously. I hope it will not damage it until I make repairs with home.
 
Computers power supplies have somewhat of a tolerance and this is probably when it doesn't turn itself off. That being said that is not a good situation at all.

In most cases a surge protector is good enough but in your case I would recommend a battery backup like an APC so that if you voltage drops too low it can keep the power constant. If your mini dies because of a power surge it will not be covered by warranty, and yes they can tell.
 
You could get a small UPS for your computer, although they're kinda pricey at $50-$100...
 
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So easy to say when you're not in someone else's shoes. If he lives in a dilapidated place, it's probably because the good quality ones come with a price or a rent he can't afford, let alone go somewhere else while still paying for the house to be repaired.
 
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