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).
Up-close of the front of the VRM.
Up-close of the back of the VRM.
The X370GTN's thermal performance is acceptable, but I wouldn't try any hardcore overclocking because the motherboard only features four phases. The motherboard will allow you to overclock, but if you do, it's important for you to ensure active airflow around the VRM. The VRM is small, and that isn't BIOSTAR's fault, the motherboard is tiny, and it has been traditionally very difficult to fit everything into a Mini-ITX motherboard.
Anything under 60C is great, 60-80C is acceptable, and anything above 80C is a bit worrisome (if at stock).
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- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and X370GTN Gaming Overview]
- Page 3 [BIOSTAR X370GTN Gaming Circuit Analysis]
- Page 4 [BIOSTAR X370GTN Gaming Circuit Analysis Continued]
- Page 5 [BIOS and Software]
- Page 6 [Test System Setup]
- Page 7 [CPU, Memory, and System Benchmarks]
- Page 8 [System IO Benchmarks]
- Page 9 [Thermal Imaging and Power Consumption]
- Page 10 [What's Hot, What's Not & Final Thoughts]