How to Find How Many Memory Slots Are in a Computer
However, modern CPUs can go into the so-called flex mode, a feature where a four-slot motherboard with three RAM sticks will run two of the three in dual-channel mode and one RAM stick in a single channel.
Potential problem with RAM slot
RAM slot, socket, or a memory slot is a gap on your computer’s motherboard where you can insert your RAM. Depending on the motherboard type, there might be up to four memory sockets.
Which RAM Slots Should You Use?
Where you insert RAM modules on your motherboard really does matter.