Memory Support
Contents
AMD CPUs have an embedded memory controller, meaning that it is the processor – and not the chipset – that defines what memory technologies and the maximum amount of memory you can have. The motherboard, however, may have a limitation as to how much memory can be installed.
Currently, the integrated memory controller of AMD processors support only DDR3 memories up to 1,333 MHz under dual-channel architecture, but MSI says the 990FXA-GD80 supports memory up to 2,133 MHz through overclocking.
The MSI 990FXA-GD80 has four memory sockets and, since DDR3 memory modules can now be found in capacities up to 8 GB, you can have up to 32 GB with this motherboard if you use four 8 GB modules.
The first and third sockets are blue, while the second and fourth are black. In order to achieve the maximum performance, you should install two or four memory modules in order to enable dual-channel architecture. When only two modules are used, install them in the black sockets. Otherwise, your computer won’t turn on.
Figure 3: Memory sockets; install two or four modules for the best performance
