Gigabyte P67A-UD4 Motherboard

Memory Support

Intel socket LGA1155 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.

The integrated memory controller from socket LGA1155 processors supports only DDR3 memories up to 1,333 MHz under dual-channel architecture, but Gigabyte says the P67A-UD4 supports memory up to 2,133 MHz through overclocking.

The Gigabyte P67A-UD4  has four memory sockets and, since currently DDR3 memory modules can be found in capacities up to 4 GB, you can have up to 16 GB with this motherboard, if you use four 4 GB modules.

Here is the weird thing about the P67A-UD4: all its memory sockets are black. If you have two memory modules, you will have to install the first module in the first memory socket and the second module in the third socket in order to enable dual-channel architecture. Since all sockets are black, users may think that they can install memory modules in any two sockets, which is not the case. This is a serious mistake coming from a tier 1 manufacturer.

Figure 3: Memory sockets; install two or four modules for the best performance