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hey. coincidentally, i dove back into the psu realm to get a new one.I ended up eith an earthwatts 380w. The twin hard drives have no more wah wah stray noise, it is nice.
I learned that "active pfc" is real, and I am enjoying my pc.PSU is a sensitive subject, I got electrocuted by a popular brand computer to the point of knocked out and exploding/chipping teeth for years afterwards. (claimed not be possible).
back to the future:
I do large functions on home made scripts (if to ponder 3400mhz at 100%, 167F degrees and ram floating full at 3gb for 24 hours or so) and the pc stays normal. Still screaming when it comes down, but the fan in psu winds up (like it knows it now).Active pfc is attributed to this, I have never had a psu that knew to wind up after the work is done to take away excess invisible..
passive pfc is done in my pc world. If to go for apfc psu, do get a late revsion, there is a year of sheisters in that too...(like all electronics) late 2007 and later is a good bet.
I could advice to look for the 2 (or more) 12v rails to be exactly the same output...that is all I learned and it worked.
speaking of silent pc review it is a favorite place, and I did write up about active pfc in a thread there with a simple analogy about how the volts go into non-efficient (written by the gov't, and i cut and pasted quotes)
browse around there is some smarter than I there to really answer questions.
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