Arie Posted March 30, 2017 Share Posted March 30, 2017 Hi, A few months back I bought my first SF600 power supply. I love it. It's silent when idle and silent enough under load to be drowned out by my GPU and CPU cooling. Last week I bought another SF600 for my second system. This one is much louder, even though the second system is identical to the first. Same case, same GPU, same CPU. I tried the older SF600 in that second system where the new one was noisy, and the older SF600 was still as quiet as I'm used to. So I sent this unit back thinking it's a dud and got it replaced with an SF450, but it shows the exact same behavior. Are newer SF450s and SF600s expected to be noisier? Link to comment Share on other sites More sharing options...
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