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ASRock X299 OC Formula Motherboard Review (Page 10)

Steven Bassiri | Oct 9, 2017 at 10:35 am CDT - 2 mins, 19 secs time to read this page
Rating: 93%Manufacturer: ASRock

Thermal Imaging and Power Consumption

System power is measured at the wall with an AC power meter.

asrock-x299-oc-formula-motherboard-review

Note on Thermal Images: In the temperature section, we use our Seek thermal imaging camera to capture the surface temperatures of major components on the board. I look at the VRM and then all other things that light up the screen. If there is something to worry about, then I will state it. Otherwise, I will just show the hotter running parts of the board for fun. Unless some component is over 80-90C, then there isn't anything to worry about.

All systems will act differently, so I will look for commonalities, such as how far from the VRM the heat spreads through the PCB and the difference in temperature between the front side and backside of the PCB. Keep in mind, the majority of the heat from the VRM goes into the PCB as it is a giant soldered on copper heat sink. A larger difference in temperature between the back and front of the PCB points towards a more effective heat sink.

Thermal Testing at Stock Speeds:

The image on the left is always at idle, and the image on the right is at load. During ALL TESTS, fans above the VRM that cool the CPU cooler's (Corsair H110i) radiator are turned on to high (12v).

ASRock X299 OC Formula Motherboard Review 85 | TweakTown.comASRock X299 OC Formula Motherboard Review 86 | TweakTown.com

Full frontal.

ASRock X299 OC Formula Motherboard Review 87 | TweakTown.comASRock X299 OC Formula Motherboard Review 88 | TweakTown.com

Up-close of the front of the VRM.

ASRock X299 OC Formula Motherboard Review 89 | TweakTown.comASRock X299 OC Formula Motherboard Review 90 | TweakTown.com

The VRM thermal imaging shows off Intersil's new power stages, and PWM controller is a great way. Intersil's new smart power stages integrate temperature and current sensing inside each power stage and work in concert with the PWM controller to shift load to phases that are cooler or are handling less current. Overall, thermal performance is excellent at stock, especially with the larger heat sink.

Up-close of the back of the VRM.

4.4GHz 2.1V VCCIN OCed VRM Thermal Imaging:

Airflow from the radiator that cools the CPU is directed in the direction of the VRMs from the right side of the motherboard to the left, and a dedicated 120mm fan is mounting above the VRM and blows directly at it. We get our results at loop 25 of Intel Burn Test, they are lower than the temperatures you see above (the stock results), as they don't have the fan over them.

ASRock X299 OC Formula Motherboard Review 91 | TweakTown.comASRock X299 OC Formula Motherboard Review 92 | TweakTown.com

The results are excellent, and the VRM heat sink is doing an excellent job. I was shocked that the temperature under the VRM area is cooler than that at the top of the inductors because it shows that the VRM is being cooled properly. ASRock has done a nice job with the bigger heat sink, and it shows.

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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