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EVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review (Page 8)

Steven Bassiri | Mar 31, 2015 at 9:11 am CDT - 2 mins, 39 secs time to read this page
Rating: 93%Manufacturer: EVGA

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 I have a wall meter as a backup to verify. The CPU power is measured through the eight-pin connection, which is hooked up to a hall effect IC that measures current and puts out a voltage in proportion to the current. A National Instruments ADC logs that voltage; afterward, I convert that into current.

evga-x99-micro-intel-atx-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 a 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 smaller difference in temperature between the back and front of the PCB points towards a more effective heat sink.

EVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 60 | TweakTown.comEVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 61 | TweakTown.com

Here the board is idle on the left, and full CPU/Memory load is depicted on the right (Intel Burn Test). You will notice that the VRM runs pretty cool on the topside. The inductors are cooled well, which reduces the chances of the VRM being the hot spot on the front side of the PCB.

EVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 62 | TweakTown.comEVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 63 | TweakTown.com

There is only a 3C increase in temperatures near the chokes from idle to load.

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There is a 7C increase on the back of the PCB, which isn't bad either. These temperatures are among the averages we see on full ATX boards with even more phases; this is because of the IR3550's great temperature characteristics.

EVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 66 | TweakTown.comEVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 67 | TweakTown.com

Here the system is overclocked to 4.5GHz. On the left are idle shots, and on the right are load shots. You can see the PCB gets warmer with an overclock, but this is normal behavior.

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There is a pretty big increase in temperature here, but at 40C on the front side of the PCB, this is actually one of the cooler running VRMs I have tested.

EVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 70 | TweakTown.comEVGA X99 Micro (Intel X99) Micro-ATX Motherboard Review 71 | TweakTown.com

This board was designed with an eight layer PCB, which is totally overkill, but serves as a great heat sink. You can see that the PCB absorbs a lot of the heat; however, it is designed to do so. Overall, this VRM performed better than I thought it would since it is only six phases and in such a small space. It competes with those big VRMs you see on full sized ATX boards.

Last updated: Apr 7, 2020 at 12:33 pm CDT

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Steven Bassiri

ABOUT THE AUTHOR - Steven Bassiri

Steven went from a fledgling forum reader in 2003 to one of the internet's brightest tech stars by 2010. Armed with an information systems degree, a deep understanding of circuitry, and a passion for tech, Steven (handle Sin0822) enjoys sharing his deep knowledge with others. Steven details products down to the component level to highlight seldom explained, and often misunderstood architectures. Steven is also a highly decorated overclocker with several world records.

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