Ram is not being detected, I made sure it was connected accurately and that it made the “snap” sound. I made sure to do the following steps:
inserted the gold connectors and the empty notch to the notch on the Synology
Using the Synology 4GB DDR4 2666 MHz Non-ECC SO-DIMM -
Rebooted Synology and ran Memory Check on Assistant
Control Panel > Hardware and Power > General. and unchecked the First checkbox.