4 Things to Know About Adding an 8GB SODIMM to an Inspiron 15 3000

You can add an 8GB stick to the open SODIMM slot The laptop typically has one soldered 4GB or 8GB stick and one open slot. Adding an 8GB SODIMM gives you 16GB total.

You get a hybrid dual-channel mode, not full dual-channel The first 8GB (the soldered portion) runs in dual-channel with the matching 8GB of the new stick. The remaining 8GB from the SODIMM runs in single-channel.

This hybrid mode is better than 8GB single-channel You get improved performance over a single-channel setup, but not the full benefit of 16GB dual-channel.

Use a matching DDR4 SO-DIMM at the correct speed Buy a stick that matches the system speed (likely 2666MHz or 3200MHz). Check with CPU-Z or the Dell spec sheet. Avoid mixing different speeds or voltages.