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ASRock X99E-ITX/ac Mini-ITX (Intel X99) Motherboard Review

By: Steven Bassiri | Socket LGA 2011 in Motherboards | Posted: Apr 29, 2015 2:05 pm
TweakTown Rating: 91%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 connect 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.

 

asrock-x99e-itx-ac-mini-intel-x99-motherboard-review

 

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. As long as the front of the board is warmer than the back of the board, the heat sink is doing its job pulling the heat away from the PCB.

 

Thermal Testing at Stock Speeds:

 

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

 

asrock-x99e-itx-ac-mini-intel-x99-motherboard-reviewasrock-x99e-itx-ac-mini-intel-x99-motherboard-review

 

Full frontal.

 

asrock-x99e-itx-ac-mini-intel-x99-motherboard-reviewasrock-x99e-itx-ac-mini-intel-x99-motherboard-review

 

Up-close of the front of the VRM.

 

asrock-x99e-itx-ac-mini-intel-x99-motherboard-reviewasrock-x99e-itx-ac-mini-intel-x99-motherboard-review

 

Up-close of the back of the VRM.

 

 

Thermal Testing at 4.2GHz Overclocked Speeds:

 

asrock-x99e-itx-ac-mini-intel-x99-motherboard-reviewasrock-x99e-itx-ac-mini-intel-x99-motherboard-review

 

Full frontal.

 

asrock-x99e-itx-ac-mini-intel-x99-motherboard-review

 

Up-close of the front of the VRM.

 

asrock-x99e-itx-ac-mini-intel-x99-motherboard-reviewasrock-x99e-itx-ac-mini-intel-x99-motherboard-review

 

Up-close of the back of the VRM.

 

First off for this review, I set the fan slopes manually in the UEFI, with the fan at its lowest percentage (21%) until 70C when I had it ramp up to full speed which sounds like a jet engine. In almost all cases, the PCH heat sink actually got hotter than the CPU heat sink, which only means the VRM isn't getting that hot. The CPU VRM heats up a bit during stock conditions compared to other X99 motherboards, but still within totally acceptable ranges (below 60C is totally fine). At stock, the back of the PCB never got hotter than the front, which means the heat sink on the VRM is doing its job.

 

When I overclocked the system to 4.2GHz, things got a bit more heated, but nothing to worry about. In both cases again the backside of the PCB never got warmer than the front; even with the heat from the CPU creeping its way towards the VRM, the tiny heat sink did its job. Any higher on the overclock and this temperature delta would have reversed, but still I think this VRM can support a 24/7 4.5GHz overclock, in my case the cooler limits the CPU's thermals, not the VRM.

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