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ASRock Fatal1ty B450 Gaming K4 (AMD B450) Motherboard Review

By Steven Bassiri from Oct 10, 2018 @ 10:00 CDT
TweakTown Rating: 90%Manufacturer: ASRock

Circuit Analysis




The Fatal1ty B450 Gaming K4 shows us the goods with the heat sinks removed!




The VRM is in a 6+3 phase controlled by an Intersil ISL95712, it's in 3+3 PWM mode and features two integrated drivers for the main 3 phase rail and one on the 3 phase rail. Three ISL6625 drivers can be found (1 VCore, 2 SoC). The CPU VCore phases each use one Nikos PK618BA and one PZ0903BK MOSFETs. The SoC phases use twoPK618BA for the low-side and one PZ0903BK for the high-side.





The memory VRM is two-phase controlled by a Richtek RT8120 which has a single integrated driver (so double components).

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