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ASRock X299E-ITX/ac Motherboard Review

By: Steven Bassiri | Socket LGA 2066 in Motherboards | Posted: Nov 6, 2017 2:09 pm
TweakTown Rating: 93%Manufacturer: ASRock

Thermal Imaging and Power Consumption


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




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).




Full frontal.




Up-close of the front of the VRM.




The VRM thermal imaging shows off Intersil's new power stages and PWM controller in a great way. These results are with the waterblock on, and they are awesome results.


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.




The results are good, but this is about the limits of the motherboard's VRM. You need to watercool the system with the monoblock that also cools the VRMs if you are going to try and overclock any Intel HCC (>10C) CPU on this motherboard. Regardless, at 4.4GHz core with 3.8GHz memory, we find that the CPU isn't throttling and that we are getting higher FPS, albeit at a higher VRM temperature.


Overall, yes, the motherboard can overclock very well, but you will want the monoblock.

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