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ASRock X99 Extreme6/3.1 (Intel X99) Motherboard Review

By: Steven Bassiri | Socket LGA 2011 in Motherboards | Posted: Jun 15, 2015 2:33 pm
TweakTown Rating: 93%Manufacturer: ASRock

Temperature and Power Consumption

 

System power usage is measured at the AC/DC PSU (the Corsair AX1200i) which I have connected to another system to measure the test system and as a backup I have a wall meter to verify. The CPU power is measured through the 8-pin connector which is hooked up to a hall effect IC which measures current and puts out a voltage in proportion to the current. That voltage is logged by a National Instruments ADC which logs the DC voltage level, which I then convert into current.

 

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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 really 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 that 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.

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

 

 

Thermal Testing at Stock Speeds:

 

The image on the left is always at idle and the image on the right is at load.

 

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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 4.5GHz Overclocked Speeds:

 

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Full frontal.

 

asrock-x99-extreme6-3-1-intel-motherboard-reviewasrock-x99-extreme6-3-1-intel-motherboard-review

 

Up-close of the front of the VRM.

 

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Up-close of the back of the VRM.

 

The X99 Extreme6/3.1's thermal performance at idle and at load, especially at stock, is very good. The Fatal1ty X99X Killer/3.1 performed a tiny bit better, but it could have been a difference in ambient temperature. The phase shedding that occurs at very high loads is clearly visible at stock operation, and even current distribution is visible in full load situations.

 

Temperature on the back never exceeded that on the front which means the heat sinks are working, and as the conditions got worse the heat sinks drew away the heat from the PCB creating a bigger delta between front and the back, which is what I like to see.

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