= ASRock X399 Professional Gaming Mainboard =

Threadripper motherboard.

== BIOS settings ==

 * OC Tweaker → Spread Spectrum = Disabled
 * OC Tweaker → Load XMP Setting = XMP 2.0 Profile 1
 * OC Tweaker → DRAM Frequency = DDR4-3066

 * Advanced → North Bridge Configuration → IOMMU = Enabled
 * Advanced → North Bridge Configuration → SR-IOV Support = Enabled
 * Advanced → AMD CBS → DF Common Options → Memory Interleaving = Channel. ([[https://www.reddit.com/r/Amd/comments/6vrcq0/psa_threadripper_umanuma_setting_in_bios/|source]])
 * Advanced → AMD PBS → PCIe Slot 4 Configuration = x4x4x4x4

 * Advanced → ACPI Configuration → PCIe Devices Power On = Enabled