When your voltage ranges are unstable (ie: power stays on, but the actual voltage degree may differ a lot in the 220V normal), then I feel that's the kind of situation wherever an AVR is helpful. I've just ordered a whole new PC With all the Intel core i7-920 and https://historyofjudo72592.eedblog.com/33899239/fascination-about-uninterruptible-power-supply-pronunciation