Iria

"The most dissapointing thing about the Ensemble is its failure to meet its quoted efficiency. Having said that, 80% is by no means poor and will in no way affect the performance of the Ensemble. The claimed maximum efficiency of 87% seems rather high to me and I suspect some exaggeration on behalf of Tuniq, which I feel we may see from other manufacturers. The minor hiccup on the high +5VSB noise should not cause too much concern, it's only 10mV and most performance motherboards are built to deal with some power supply noise as long as it's not excessive. There are few "perfect" power supplies out there and motherboard designers have to take this into account at the design stage. I would like to point out one major problem with the Ensemble. The 12V1 cable on this power supply consists of three 4-pin molex with an FDD connector to finish off. Most of you will be aware that this consists of only one conductor for the 12V rail, but pull the rated 20A on this rail and you will have problems."
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Source: OCC