ASUS X99-DELUXE Motherboard

Memory Support

Intel socket LGA2011-v3 CPUs have an embedded memory controller, meaning that it is the processor, not the chipset, which defines what memory technologies you can have and the maximum amount of memory that is possible. The motherboard, however, may have a limitation as to how much memory can be installed.

The integrated memory controller from socket LGA2011-v3 processors officially supports DDR4 memories up to 2,133 MHz. According to ASUS, the X99-DELUXE supports memories up to 3,200 MHz.

One of the most important features of the socket LGA2011-v3 processors is the support for the quad-channel memory architecture, which allows the memory to be accessed in 256-bit mode for higher performance. Since each memory module is a 64-bit entity, four memory modules are needed to enable this architecture. If only two or three memory modules are installed, the memory will be accessed under dual- or triple-channel architecture, respectively.

The ASUS X99-DELUXE has eight memory sockets (four at each side of the CPU socket) and, since DDR4 memory modules can be found in capacities up to 8 GiB, you can have up to 64 GiB with this motherboard if you use eight 8 GiB modules.

In order to enable the quad-channel mode, you must install four or eight identical memory modules. When installing four memory modules, you will have to “skip” one memory socket, filling only the dark gray sockets (you will have to pay a little attention to the sockets, since the dark gray and black sockets are very close in color.)

Figure 5: Memory sockets; install four or eight modules for the best performance