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Introduction

The ASRock X99 Extreme6/3.1 is a top mid-range motherboard for the new Intel high-end “Haswell-E” processors, based on the LGA2011-v3 socket. It includes three PCI Express 3.0 x16 slots, ten SATA-600 ports, eight USB 3.0 ports, three USB 3.1 ports, a SATA Express connector, and a high-end audio codec. Let’s take a good look at this board.

The Intel X99 platform supports the new socket LGA2011-v3 processors. However, it is not compatible with former socket LGA2011 CPUs, which require motherboards based on the Intel X79 chipset. The main difference between the two platforms is that LGA2011 processors are compatible with DDR3 memories, while LGA2011-v3 CPUs can use the new DDR4 standard.

The main differences between the X99 and the X79 chipsets, besides the CPU support as mentioned above, are the number of USB 3.0 and SATA-600 ports: the X99 offers ten SATA-600 and six USB 3.0 ports, while the X79 supports only two SATA-600 ports and has no native support for USB 3.0 ports.

In Figure 1, you see the ASRock X99 Extreme6/3.1 motherboard. It uses the ATX form factor (12 x 9.6 inches or 305 x 244 mm).

ASRock X99 Extreme6/3.1Figure 1: ASRock X99 Extreme6/3.1 motherboard