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Supermicro SuperO C7Z370-CG-L Motherboard Review (Page 10)

By Steven Bassiri from Nov 16, 2017 @ 11:43 CST
TweakTown Rating: 92%Manufacturer: Supermicro

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 to the right of the motherboard from the (Corsair H110i) radiator are left on automatic mode (ramps with internal block temperature). Additionally, a 120mm fan is situated right above the VRM, and it blows down at a medium rate (very quiet). Thermal Images are taken at loop 15 of Intel Burn Test

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Full frontal.

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Up-close of the front of the VRM.

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Up-close of the back of the VRM.

Thermal Testing at 4.9GHz/1.3v Overclocked Speeds:

The image on the left is always at idle, and the image on the right is at load. During ALL TESTS, fans to the right of the motherboard from the (Corsair H110i) radiator are left on automatic mode (ramps with internal block temperature). Additionally, a 120mm fan is situated right above the VRM, and it blows down at a medium rate (very quiet). We standardize this test with a 4.9GHz on all cores with 1.3V real under load and take pictures at the 80% mark of HandBrake rendering a 4K video.

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Up-close of the front and back of the VRM.

The C7Z370-CG's thermal performance is great. While the heat sinks aren't the craziest, the VRM components are of high enough quality to ensure things don't overheat. The VRM is not overtasked, in fact, the five phases can provide up to 250W and up to 2V, which is pretty intense.

It looks like MPS digital PWM and power stages are quite competitive. Notice that when we overclocked, temperatures aren't really that much higher than when things are at stock, so it's like most of the heat we saw at stock was just base heat from operational loss.

Anything under 60C is great, 60-80C is acceptable, and anything above 80C is a bit worrisome (if at stock).

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