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Trikzy said:*everything on my computer is hooked up to surge protectors....which i don't trust at all..but i guess it's better than no protection.
and DIY UPS both at dansdataThe plain surge/spike filter powerboards you can buy at various electronics, electrical and hardware stores are, arguably, worse than nothing. This is because they give you the impression youre protected, when you probably arent - well, not for long, anyway.
The chief surge-clamping component in a basic filter-board is a Metal-Oxide Varistor (MOV). MOVs pass current only when the voltage across them is above a set value, and they react very quickly (in a matter of microseconds, against the tens of milliseconds a circuit breaker takes). Thats the good news. The bad news is that MOVs wear out - theyre only good for a few uses, and the bigger the spike, the more damage is done.
Cheap power filters seldom give you any indication whether your MOV is alive or not. If the powerboard has an illuminated power switch, the switch light often goes off when the MOV has died. The switch lights generally last for decades, so no light almost definitely means no MOV - but since the light only shows the status of a fuse, and the fuse wont blow if the MOV has been killed by lots of smaller surges, the light can keep glowing merrily when the MOV has long since kicked the bucket.
Anti-spike gear may also include gas arrestor tubes, which are far more durable than MOVs but too slow for computer applications, or silicon avalanche diodes, which give much of the robustness of gas tubes with the speed of a MOV. The best spike suppressors have all three components, but you wont find those at the hardware store. Standard MOV-equipped powerboard suppressors sell for around $50 (Australian dollars).