Ariando

Got you. My motherboard (Asrock b460m pro4) manual says I need to install identical (the same brand, speed, SIZE, and chip-type) ddr4 DIMM pairs for dual channel to work. Guess I'm just going to sell that 16 gigs stick because returning it is no longer an option now unfortunately

If that so, will the issue that @GhostRoadieBL mentioned happen if the RAM usage got over 8 GB ?

Thanks for the insight. I had no idea about that. Learned something new today.

Thanks for the info. I too feel like it's too risky to do. Unfortunately for me returning it is no longer an option. Guess I'm just going to try to sell it to someone else at a little loss.

Hi, I'm a newbie in PC building. I'm in the process of building my first budget PC for gaming and editing. I accidentally bought a single stick of RAM (16 gigs, 2666 mhz) instead of 2 x 8 gigs configuration. My question is, if I buy another stick with the same speed but different size (say, 4 gigs 2666 mhz) and put it alongside the 16 gigs RAM, can they run in a dual channel manner ? Also, will it be safe ? Thanks in advance!