16GB RAM at 2400MHz, dual channel configuration, DDR4 standard, paired with another 4GB DDR4 unit running at 2133MHz.
16GB RAM at 2400MHz, dual channel configuration, DDR4 standard, paired with another 4GB DDR4 unit running at 2133MHz.
Hey there, tech enthusiasts! I'm looking to upgrade my Lenovo Ideapad 520. My current setup has a 12GB dual-channel DDR4 RAM at 2133MHz, and I need a 16GB RAM stick for the second slot. The challenge is that my country doesn’t have 16GB 2133MHz modules available, and my motherboard already has a fixed 4GB RAM. Can I fit a 16GB module—preferably 2400MHz or 2666MHz—with my existing 4GB RAM?
Consider using a second 4GB stick with matching serial numbers to the ones already installed. A 16GB drive probably won’t add much beyond that. The challenge comes from the laptop design—it behaves differently. Checking a QVL for your specific model and selecting the exact memory is recommended. It’s unlikely you’ll reach 20GB, but you might get around 16GB in single-channel mode. Laptop manufacturers often have quirks. The outcome really depends on their specifications.