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ASRock X99 Extreme6/ac (Intel X99) Motherboard Review

By: Steven Bassiri | Socket LGA 2011 in Motherboards | Posted: Apr 11, 2015 2:15 am
TweakTown Rating: 93%Manufacturer: ASRock

Test Setup

 

A big thanks to Corsair for sponsoring the case, fans, SSD, USB drive, and PSU!

 

A big thanks to Seek for sponsoring the Thermal Camera. You can find my review of the camera here.

 

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This is the new test bench, and it is designed to test every aspect of the motherboard and IO. I have designed it so that the motherboard sits in a case and is cooled by fans always on at a constant rate to keep the conditions similar for all tests. I have cut out part of the case behind the motherboard so I can get thermal images of the back of the PCB where the VRM heat spreads. System and CPU power measurements are now digitally logged.

 

I am also using a Netgear Nighthawk X4 AC2350 for our network (including wireless AC) tests. The latest M.2, SSD, and USB technologies are also being utilized to test the maximum potential of the motherboards that are being tested.

 

 

Overclocking Results

 

In this section, I will go through overclocking this board.

 

CPU Overclocking

 

Max CPU Overclock is found by setting the VCore to 1.5v, Input voltage to 2.1v, cache voltage to 1.15v, booting with a CPU multiplier of 45x and disabling any features that would result in CPU frequency fluctuation. I then proceed into Windows and use software to increase the multiplier; in this case I opted to use A-Tuning.

 

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5.0GHz is the maximum of our CPU on this board and other X99 Motherboards. It is clear that CPU overclocking is pretty good for high frequency.

 

Maximum AIDA64 Stable Overclock (BIOS settings below for this):

 

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I was easily able to pull off 4.5GHz on the CPU with 3.2GHz cache and a 2400MHz overclock on my memory manually tuning the UEFI.

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