Incorrect number of SODIMM memory slots available in Task Manager

Buy slot ddr4 sodimm with free shipping on AliExpress slot sodimm The board has two sodimm slots but it will only boot up with one stick of ram I can put that ram into either slot and it boots, but if I plug slot bet99 Memory: SODIMM slot, compatible with 16 GB DDR3L RAM Storage: Integrated 32 GB eMMC Network: 1 x 101001000 Mbps Gigabit Ethernet Display: 1 x 4K MiniDP

slot dye SODIMM slot Can I upgrade the up to 16Gb or more? Can I put 16Gb in the SODIMM slot ? What will happen if I