using all 4 ram slots
Why are we putting RAM sticks into 2nd and 4th slot first?
For example, using 4 RAM sticks can improve performance by up to 5–7% compared to 2 RAM sticks. ... A common misconception about RAM is that you can put any RAM in any slot.
4 Sticks Of RAM vs 2: Which Is Better For Your PC?
Clients may have more than 4 RAM slots available through the RAM area slots on their workstations.
two sticks of RAM or one stick with twice as much memory?
Most consumer-grade motherboards come with four RAM slots; the main goal of these RAM slots is to connect the CPU to the RAM sticks using the motherboard.