With the motherboard facing up, you will see 2 DIMMS for RAM.

If the NAS has 16GB of RAM you will want to install either (1) 16GB DIMM or replace the existing DIMM with (2) 32GB DIMMS.

Please check the QNAP Memory compatibility site to ensure you have DIMMS that will work.

This NAS has a single 32GB DIMM installed.

The new DIMM will go into the empty slot.

If you need to remove a damaged RAM chip, use your fingers to pull the metal arms on both sides of the RAM away enough to release it.

The RAM will pop up by a few millimeters.

Remove it at an angle and not straight up so you don't damage the socket.