Yes, your i5 8400 can support multiple RAM sticks.
Yes, your i5 8400 can support multiple RAM sticks.
Hello, thanks for your question. Based on the information you provided, I'm checking if my CPU can use all four RAM slots from my motherboard. Right now I have two 4GB modules, and I’m considering adding two more. I looked at Intel’s site and noticed the memory type is DDR4 at 2660 MHz. That means it doesn’t support higher-speed RAM like 3200 or above. Also, the chip supports only two channels, so using four sticks would exceed its capability. Your concern about whether the CPU can handle faster RAM than 2660 is valid, and adding more sticks won’t work due to channel limitations.
ram stick quantity refers to the total number of slots, which is managed by the motherboard, not the CPU. A board with four slots can accommodate four sticks. Back in the day, computers with just four sticks faced minimal problems, so your i5 should handle it as long as there are available slots.
The 8400 supports memory speeds exceeding 2666Mhz, which is regarded as an overclock but is quite straightforward to accomplish.
Each memory channel accommodates two memory sticks, meaning you could potentially use up to four sticks. Adding more is feasible, so it’s a good idea to match your kit closely with the one you have, or at least as close as possible. This helps ensure all four sticks function properly out of the box without needing any manual adjustments. Concerning memory speed, I’m confident the 2666MHz cap applies mainly to H or B series chipsets. In short, if you’re using a Z370/Z390 board, you’re free to use higher frequencies beyond 2666MHz.