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ASRock X299 OC Formula Motherboard Review (Page 3)

Steven Bassiri | Oct 9, 2017 at 10:35 am CDT - 1 min, 1 sec time to read this page
Rating: 93%Manufacturer: ASRock

Circuit Analysis

ASRock X299 OC Formula Motherboard Review 21 | TweakTown.com

The X299 OC Formula really is quite beautiful.

ASRock X299 OC Formula Motherboard Review 22 | TweakTown.comASRock X299 OC Formula Motherboard Review 23 | TweakTown.com

The motherboard uses a 12+1 phase configuration for the VCore and VCCSA, and ASRock is using Intersil's new fully digital PWM and Smart Power Stages. The ISL69138 is one of Intersil's first fully digital PWM controllers and can be flexible with their outputs up to 7 PWM channels. Here it is used in a 6+1 phase mode doubled to 12+1.

ASRock X299 OC Formula Motherboard Review 24 | TweakTown.comASRock X299 OC Formula Motherboard Review 25 | TweakTown.com

ASRock uses the ISL99227B and ISL99227F 60A Smart Power Stages with excellent internal monitoring and power efficiency characteristics. They can also be cooled on both sides of the chip. To double the phases, ASRock uses six ISL6617 phase doublers.

To get 12 phases from the six the PWM provides, ASRock uses a bunch of ISL6617 phase doublers on the rear of the motherboard. Here we find another ISL69138, most likely used to control the memory controller, and it controls two Sinopower SM7341EH dual N-channel MOSFETs.

ASRock X299 OC Formula Motherboard Review 26 | TweakTown.comASRock X299 OC Formula Motherboard Review 27 | TweakTown.com

Each memory VRM uses the same Intersil ISL69138 digital PWM and two Fairchild Semiconductor FDPC5030 PowerTrech Power Clip dual N-channel MOSFETs for strong memory power delivery. Each memory VRM uses two ISL6596 N-channel MOSFET drivers.

Last updated: Nov 15, 2019 at 01:16 pm CST

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Steven Bassiri

ABOUT THE AUTHOR - Steven Bassiri

Steven went from a fledgling forum reader in 2003 to one of the internet's brightest tech stars by 2010. Armed with an information systems degree, a deep understanding of circuitry, and a passion for tech, Steven (handle Sin0822) enjoys sharing his deep knowledge with others. Steven details products down to the component level to highlight seldom explained, and often misunderstood architectures. Steven is also a highly decorated overclocker with several world records.

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