A memory slot, memory socket, or RAM slot allows RAM (computer memory) to be inserted into the computer. Most motherboards have two to four memory slots, which determine the type of RAM used with the computer. The most common RAM types are SDRAM and DDR for desktop computers and SODIMM for laptop computers, each having various types and speeds. The picture below is an example of what memory slots may look like inside a desktop computer. In this picture, there are three open and available slots for three memory sticks.
For this to work you are going to need 2 sticks of identical (Same brand, speed, voltages and latency) RAM that is dual channel rated. The white slots are there for extra RAM. The white slots are for extra RAM. But be aware if you fill all four slots it won't work like dual channel.
When buying a new computer or motherboard, pay close attention to the types of RAM the memory slots can accept. Make sure you know exactly the type of RAM to buy for your computer. It is also important to note how many available memory slots are available in your computer. It is not uncommon for computers to have all memory slots occupied. If all slots are full and you want to upgrade the computer memory, you need to remove some or all of the existing memory.
For example, if a single-channel memory motherboard has four memory slots, they will be numbered 0 to 3 (or 1 to 4). Fill slot 0 (or 1) first, then the other slots sequentially as you add modules. If you are installing memory in a dual-channel memory motherboard, install memory modules in pairs, filling the lowest numbered slots first. Memory supports third-party RGB controllers, which is another plus. Further, you can replace default lightbars with custom 3D printed ones. This is an awesome feature that makes this memory the best RGB RAM you can get. Overall, this is the best DDR4 RAM for users looking for a customizable RGB memory. The two most common slots available on today’s PCs are PCI and PCI-Express: PCI: The Peripheral Component Interconnect type of slot is the most popular and widely available expansion slot on today’s PCs. It’s normally colored white, though often beige is used. There are 32-bit and 64-bit PCI expansion slots. SuperUser reader Totymedli is curious about the color coding of RAM slots: I have always seen that the motherboard RAM slots are colored in pairs, but never knew what it meant. I just put the 2 RAM in, and after a few tries it always worked. But after I tried to install a third one it always throws me a blue screen of death.
When a motherboard has different colored memory slots, it indicates the memory slots are dual-channel, and pairs of memory should be installed on the same channel (color). For example, a motherboard could have two yellow and two black memory slots. The yellow memory slots could indicate Channel A and Channel B could be indicated by the black slots. If you were only installing two memory sticks, you'd want to install both of them in Channel A (yellow slots) for optimal performance.
Memory module, Memory terms