VRM Overview

Specifications

The MEG X570 ACE features a 14 phase VRM in a (6 x2) + 2 configuration with IR3599 doublers for the Vcore phases.


The IR35201 controller supports a maximum of six Vcore phases and two SOC phases. The IR3599 doublers are all placed on the back of the board.


The MEG X570 ACE uses IR3555 power stages, which are rated for 60 A. These stages are both powerful and sophisticated, featuring OCP and OTP to protect against over current and over temperature, which should not be possible considering how overkill this VRM package is. The SOC uses two more of the same IR3555 power stages.

The MEG X570 ACE is capable of pushing a maximum of 720 A through the Vcore VRM. I think we can safely assume that is enough for any Ryzen part, present or future.

With the MEG X570 ACE though, this overkill approach may not just be spec sheet padding. The overbuilt nature of this VRM should lend itself to lower overall temperatures, which is important when there is a heatpipe connecting the VRM to the chipset. MSI has put a lot of effort into keeping that chipset fan off for as much as possible.