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ASUS ROG Rampage VI Extreme Motherboard Review (Page 10)

By Steven Bassiri from Oct 11, 2017 @ 16:16 CDT
TweakTown Rating: 93%Manufacturer: ASUS

Thermal Imaging and Power Consumption

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

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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).

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Full frontal.

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Up-close of the front of the VRM.

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The VRM temperature raised one a few degrees from idle to load, and the temperature on the rear was lower on the top of the motherboard, and airflow here is at a minimum, so the VRM is relying on the heat sink a lot to cool. Overall VRM temperatures are excellent here.

Up-close of the back of the VRM.

4.4GHz 2.1v VCCIN OCed VRM Thermal Imaging:

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We have changed our X299 VRM testing under OCed conditions, with a fan directly mounted above the VRM blowing full speed at the VRM. However, are also pulling 500W+ from the PSU, so it is incredibly important to do this. Then Intel Burn Test is run for 30 loops, and infrared pictures are taken at loop 25. As we can see, the motherboard's VRM is doing very well, at only 46C at the top.

The rear of the motherboard shows the hottest spot is under the CPU socket, meaning that the heat from around the VRM has been pulled upwards and dissipated by the heat sinks, indicating excellent performance.

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