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ASRock Z390 Phantom Gaming 9 (Intel Z390) Motherboard Review (Page 3)

By Steven Bassiri from Mar 1, 2019 @ 10:00 CST
TweakTown Rating: 93%Manufacturer: ASRock

Circuit Analysis


The Z390 Phantom Gaming 9 shows us the goods with the heat sinks removed!


The VRM is in a 10+2 phase configuration, and uses six IR3598 doubler/dual drivers on the back of the PCB. Five of these IR3598 are in doubler mode, while one is in dual driver mode for the two iGPU phases. The IR35201 digital PWM controller is used in 5+2 phase mode.

ASRock is using the high-end Texas Instruments 40A NexFETs, the CSD87350 dual N-channel MOSFETs, along with high current inductors for both the CPU and iGPU phases.


The VCCSA and VCCIO are controlled by Richtek RT8120 single phase PWMs with integrated drivers and use Sinopower dual N-Channel SM7341EH power blocks. Memory is controlled by a UPI uP1674 PWM controller, which then controls two Sinopower SM7341EH power blocks. The VRMs are very similar to those on the normal Taichi.

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ASRock Z390 Phantom Gaming 9

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