If you have more than one memory stick, you will need to make them work jointly (dual-channel, triple-channel, etc.), enabling the CPU to access the RAM modules faster. Yes, RAM slot order matters because of the multi-channel architecture. We’ve composed a comprehensive guide on working out the right slots for your computer and installing them on a desktop and laptop. It might sound complicated, but finding the correct slot isn’t too tricky. If you plan to upgrade your computer memory but don’t know what slots to put RAM in - you’ve come to the right place.