F5F Stay Refreshed Hardware Desktop Motherboard power phases

Motherboard power phases

Motherboard power phases

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Lupin0967
Member
96
02-01-2026, 11:48 PM
#1
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?
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Lupin0967
02-01-2026, 11:48 PM #1

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?

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Kirka2016_YT
Junior Member
47
02-02-2026, 02:40 AM
#2
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.
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Kirka2016_YT
02-02-2026, 02:40 AM #2

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.

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Marcelo_Game
Junior Member
22
02-04-2026, 12:39 AM
#3
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
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Marcelo_Game
02-04-2026, 12:39 AM #3

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