Hi, I did not try to extend the RAM yet. The problem is that there is just one RAM slot with 8GB module inserted and the other 8GB are soldered directly to the motherboard. Probably it means that if just to insert more memory in the single slot it will not be working in double channel mode (means it will be slower). Also possible that just 16GB will still work in 2-channels mode and the rest of memory will work in 1-channel mode only.