And here we are in 2020 creating list of power supplies with ripple under 50 mV xd. What I mean is that, even a power supply that has a noise above the ATX spec, it will most likely still work without issues on most PCs. (btw 120 mV peak to peak of noise is already a very good value in general switch mode power supply design, and this is the noise of the power supply alone tested in special conditions (PSU alone connected to a resistive load, a few capacitors IIRC), turns out that graphics cards and motherboards add a lot of capacitance to the system, greatly reducing the noise after all. (In fact it would be a problem of the rest of the PC if it needed a power supply with ''better'' specs than that).įor example, noise at 12V rail at 120 mV peak to peak max. There are several problems with these requirements:įor one, ATX specifications set the requirements perfectly, any PSU that meets them is complaint and safe and can be used in any PC. Tier A and above - required to have ZVS (LLC or phase shift resonant topology), have ripple below 50mV under all load situations including 110% overload, 30k hours MTBF fan (generally non-plain-sleeve bearing) or be fanless. I've seen several times the PSU tier list being put here, and they just a gross oversimplification of how things work with several misunderstandings at best, or complete marketing BS at worst, So I'll go into detail.įirst, lets dive into the methodology of the tier list at LTT. Pick, Assemble and Install: Video Guide.No intentionally harmful, misleading or joke advice.No excessive posting (more than one submission in 24 hours).No selling, trading or requests for valuation.No self-promotion, advertising, begging, or surveys.No submissions about memes, jokes, meta, or hypothetical / dream builds.No submission titles that are all-caps, clickbait, PSAs, or pro-tips.No submissions about retailer or customer service experiences.No submissions about sales, deals or unauthorized giveaways.No submissions about hardware news, rumors, or reviews.Please keep in mind that we are here to help you build a computer, not to build it for you. Submit Build Help/Ready post Submit Troubleshooting post Submit other post New Here? BuildAPC Beginner's Guide Live Chat on Discord Daily Simple Questions threads

Linus tech tip psu tier list