Motherboard power phases
Motherboard power phases
Typically motherboards have configurations like 6+1 or 8+2. The first number refers to the CPU, and the second number indicates the memory slots. More power phases are generally better, but you mentioned a board with 20+1+1—what does that extra slot mean?
Processors and sockets vary in power needs across generations. The earliest models with many phases are designed for the main CPU components, while later ones typically handle System on Chip features—like integrated graphics, built-in controllers, and memory management. You're likely talking about AM5 sockets and their associated voltage rails, which include a third rail called Vmisc. This rail is thought to supply power to additional peripherals beyond the core, possibly supporting PCIe 5.0 or Infinity Fabric connections that link the processor’s core chiplets with system components.
It's actually an LGA1200 socket, a premium motherboard ideal for overclocking. It might also support PCIe 5.0, though most I've seen only have PCIe 4.0 with configurations like 6+1 or 8+2. I corrected that in my notes. Updated November 6, 2022 by Protomesh