VRM Overview

Specifications

The ASRock X570 Phantom Gaming X features a 14 phase VRM in a (6 x 2) + (1 x 2) configuration. The basic components are largely identical to the recent ASRock X570 Taichi, but with a minor tweak to the power stages used.


The Intersil ISL69138 PWM controller supports a maximum of seven phases in various configurations. In order to achieve 14 phases, ASRock uses four Intersil ISL6617A doublers located on the back of the board. In order to cram in more Vcore phases, ASRock opted for doublers for the SOC as well.


The ASRock X570 Phantom Gaming X uses SiC654 power stages for all 14 phases (12 for the Vcore and 2 for the SOC). The ASRock X570 Taichi uses SiC634 power stages. The two stages are very similar, both offering 50 A maximum current output, but the SiC654 of the Phantom Gaming X also features over temperature protection and over current protection at a small penalty to efficiency ( 90% vs. 95% peak efficiency).

The ASRock X570 Phantom Gaming X has a maximum output of 600 A, which is far above what any Ryzen 3000 CPU could possibly draw even when using LN2. This VRM definitely qualifies as overbuilt.