Once you have access to the board, check for DIMM slots. These are located near the CPU socket.
In case you have already installed a bulky CPU cooler, the memory slot may be blocked. If so, you might need to remove the cooler first to access the slots.
Most consumer-level motherboards have two or four memory slots. You can also find 8 or 16 slots on the workstation or server-class motherboard.
To get the most out of your RAM, you need to use the correct DIMM slot.
Choosing the Right Memory Slot
Installing a memory stick on an incorrect slot means both RAM will act as a single stick or single channel.
This means the CPU will only use one channel to access both these RAMs. The CPU can access both these RAMs simultaneously when placed correctly.
Depending on the memory slots used, your system will either run on single or dual channels. Quad or Octa for server-level motherboard. Multi-channel setups are much faster and have more bandwidth than single channels.
So if you are using multiple memory sticks, you need to insert RAM in the correct slots.
Mini-ITX motherboards usually have 2 DIMM slots. If you are using such motherboards, you can fill these two slots to run them in dual-channel.
Most motherboards, ATX, micro-ATX, etc., come with four memory slots. If you are using such motherboards,
Choose slot DIMM/DDR4/5 A2 if you are using one RAM stick.
Choose slot DIMM/DDR4/5 A2 and B2 If you are using two RAM sticks.
Finally, populate all the slots if you are using four memory sticks.
Note: Installing RAM on all four slots does not allow any system to run on quad-channel. Your motherboard must also support quad-channel in order to run it.
If the motherboard has more than four slots, you will need to check its user manual.
We also have a Gigabyte TRX40 motherboard with 8 memory slots. But this motherboard only supports up to quad channels. So, even if I fill all the memory slots, the system will not run an octa-channel setup.
Once you have selected the slot, installing a memory stick is a piece of cake. Depending on the motherboard, RAM slots may have locks on one side or both.