![]() ![]() Six of the PCIe connectors are hosted on dedicated cables, while the other four are on two cables using a typical daisy-chain scheme. USB Mini to Motherboard Header Cable (+800mm)Ĭorsair gives you lots of cables and connectors, since 1600W has to be distributed among them. Finally, the 450 bucks price is intimidating, that's for sure, but this is the best performing PSU and its cutting-edge platform has a high production cost. Currently, only Seasonic dares to offer an even longer warranty on its Prime family. A 10-year warranty is impressive, though. Plus, it's possible to pick between three fan profiles or set a fixed rotational speed through the bundled Corsair Link software.ĭespite what GaN FETs enable, this model's dimensions are typical of what you'd expect from a 1.6kW PSU. The suite of protection features is comprehensive, and you're able to disable/enable the semi-passive fan mode. Specificationsīesides 80 PLUS Titanium and ETA-A+ efficiency certifications, Corsair's AX1600i also carries a LAMBDA-A badge for its low noise output. ![]() If you want to dive deeper into GaN, you will find more info here and here. Such a product would satisfy the Cybenetics ETA-A++ requirements. Thanks to the new topologies emerging and their higher capacities, we might soon see a PSU with over 94% efficiency (115V) throughout its operational range. It is easy to foresee that GaN-based solutions and digital circuits are the future of PSUs. With GaN-based solutions, those components can generate the needed rails from a single, higher voltage rail without increased losses, all while using fewer components in a more compact chassis. Nowadays, most components have their own DC-DC converters. From a single voltage output, the individual components are able to generate all required voltages. ![]() This means that there is no need for multiple rail outputs (12V, 5V, and 3.3V), which currently impose a two-step conversion. Additionally, the smaller footprint of a GaN-based solution allows designers to easily stack the power stages for different load demands and place them close to the load for better/faster transient performance. First, it enables a single step conversion from 36-60V in order to power your hardware, reducing the number of components needed and enabling smaller PSUs. Point of Load (PoL) DC/DC: GaN has a major impact on those converters.A higher frequency reduces transformer size, while improving power density and efficiency. LLC Resonant Converter: The DC/DC stage takes advantage of GaN’s superior switching characteristics to push the resonant converter switching frequencies to over 1 MHz.Moreover, a significant increase in switching frequency, which can reach up to 10x, significantly reduces the size of magnetics while improving overall efficiency to over 99% (versus 96% for today’s Titanium-class power supplies). PFC: By enabling a totem-pole topology, GaN devices reduce the number of active power switches (FETs) and filtering inductors by 50%.The PSU's architecture and density change due to the special features of GaN components. GaN introduces some major differences compared to a SI-based solution, illustrated in the diagram above. ![]()
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