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ASRock Fatal1ty AB350 Gaming K4 Motherboard Review (Page 3)

By Steven Bassiri from May 9, 2017 @ 20:42 CDT
TweakTown Rating: 89%Manufacturer: ASRock

Circuit Analysis


The AB350 Gaming K4 shows us its goods.


The VRM is in an 8+3 phase configuration and uses the Intersil ISL95712 PWM, which offers 4+3 phases with two integrated drivers on the four phase rail and one on the three phase rail. ASRock adds two ISL6625A for the SOC and one more for the core to utilize all 4+3 phases. Then they double the number of power stage components on the CPU VRM to get six phases out of the three drivers. Sinopower SM4337 and SM4336 PowerPAKs are used in a one-high one-low configuration on the core side and two-low one high-configuration on the SOC side.


The memory VRM is controlled by an APW8720B single phase PWM with integrated driver and two sets of power stage components. It is enough for most memory overclocking.

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