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Old August 9, 2012, 11:28 AM
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KaptCrunch KaptCrunch is offline
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Location: Ontario
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Active Volt Regulation is what it says, be it squarewave (bottom line model) or sine wave for top line unit you still get brown out protection and blackout

OP'er needs a ground for issue

i use an smart-ups and to me its worth having one for was geting lost data from dips and spikes from wall outlet

note you say that psu has all the filtering tools , if was dirty then it will clean it up and ups keeping steady line voltage