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Excellent post, though the graph for the Seasonic should be included especially since the Corsair is included--I was confused why Seasonic Titanium PSUs are recommended--Titanium rating only guarantees 90% at 10% but the smallest Titanium-rated offering is 600W and 60W is not considered a low power build. Then I've skimmed through all the posts and see the Seasonic chart which is comparable to the Corsair (Corsair is actually a little more efficient at 20W). So because these two posts are mentioned, I can only assume other PSUs have worse curves and also the 80 Plus rating is not relevant at all (including Platinum) for low-powered builds since 10% of the lowest Titanium offering of 600W in the consumer market is still 60W. If I were to build a NAS and home server today, what to consider for a CPU: Pentium Gold G7400, i3-12100, or i3-10100? All 3 have good enough transcoding capabilities via Quick Sync and I expect it to last for over a decade, which is not unreasonable since my desktop I'm typing on is an i5-2500k and I will finally upgrade at 14th gen when the DDR5 platform and pricing matures. It would do the usual NAS stuff but in the future might run Proxmox stuff and do some basic home surveillance. The most important thing is idle power consumption--is it true that "modern Intel processors from the past 10 years" all idle under 1W? If so, I guess it doesn't really matter what processor to choose at all and it only comes down to budget unless the server is working hard for the majority of the time? I assume accompany that with consumer-grade mini-ITX (4 builtin SATA ports is fine), I've settled with high capacity for power efficiency). And of course one of those Corsair or a used Seasonic Titanium (*all models* have similar efficiency curves? I only see this model (https://seasonic.com/prime-titanium-fanless) tested by that German site and if I go on Seasonics and search for their Titanium PSUs, I see it's neither of these two PSUs listed: https://seasonic.com/consumer/power-supplies?attr_80plus=15 which are presumably newer models. Given that even when used they command a premium, I want to make sure all models perform similarly well at the 3-8% utilization (assuming 650W PSU) that I expect my low power build to turn out, since I will likely have 0-2 HDDs running max (the remaining or all will be cold storage, I might just get a large SSD if I need online storage). If that's the case I will just get the cheapest used 600-650W Seasonic Titanium PSU regardless of a specific model, though I think I prefer fanless as it's one less point of failure (I see people replacing the stock fan with Noctuas for whatever reason). Actually, I don't need a NAS until end of next year, but I doubt even then ATX12VO will be available for a mini ITX build at reasonable prices so it's probably not worth waiting. One more question--how frequent should disks be spun down before it's not worth the wear and tear anymore? AFAIK the concern is largely outdated for modern drives, yet people continue to insist on leaving the NAS 24/7 for no reason other than it's so terrible to turn off drives, as if most desktop PCs don't have have at least 1 HDD and aren't turned off daily for decades and that was never a concern in that regard. NAS-rated drives are supposed to be "better built" so even if they are intended for servers that run 24/7, surely they can handle being turned off reasonably frequently. Much appreciated and keep up the good work.