Finished Looks

The ASRock X399 Phantom Gaming 6 is a great-looking board with a dark, almost professional theme that is broken up by accents and flares of color. The fit and finish is excellent, and the board looks great with my test components.


The RGB implementation is pretty minimal, confined to the underside of the chipset heat sink. What is there looks quite good, and ASRock has included two RGB LED headers for those who want to expand their setup.

Test System

Now, as this is my first HEDT board, I decided to do a little extra testing. The G.SKILL kit I normally use is just a dual channel kit comprised of two sticks. To fully realize the potential of the ASRock X399 Phantom Gaming 6 I really needed a quad channel option. With that goal, I reached out to Team Group, and they were kind enough to provide two of their T-Force Gaming Xtreem 2x8 Gb kits (rated for 3866 MHz at CL18-20-20-44 with 1.35 V). These are pretty much perfect for what I needed, but the change necessitated some extra work.

For this review, all testing was done with the new Team Group kits; however, in the interest of accurate comparisons, I also tested the ASRock X399 Phantom Gaming 6 with the G.SKILL kit. I went through every test that could conceivably be affected by either quad channel bandwidth or higher capacity. For these tests, the G.SKILL results are in blue (and labeled as well).