The pure-12 V PSU has only two domains: +12V and +12 Vsb. What this means is a goodbye to the bulky 24-pin ATX power connector. The PSU only feeds 12 V to your motherboard, which uses onboard VRM and DC-to-DC switching to put out the lower voltage domains, including power for your SATA storage devices. The 24-pin connector is effectively reduced to a new 10-pin connector that only has 12 V and 12 Vsb cabling. Other cables include 8-pin EPS connectors for your CPU VRM, and 6+2 pin PCIe connectors for your graphics cards. EPS and PCIe power are purely 12 V-based standards already. The 5-pin connector is less than half as thick as your 24-pin connector, and 2 pins wider than an EPS connector. Some of the more premium PSUs may user thicker gauge wires for this connector.It's an interesting concept but whether it will get adopted remains to be seen. Over the past decades, we've seen various new proposal but so far ATX is still standing strong.
FSP shows off PSU with only 12V
Posted on Thursday, January 16 2020 @ 9:40 CET by Thomas De Maesschalck