I checked today, and CPU-Z did identify the RAM module correctly. I had some trouble getting the RAM back in the slot (probably didn't line up the notch right), but my friend got it in right. Now I know what I need to match this with. Thank you.  
I have an Inspiron 3650, with 8 GB of RAM, and would like to add another 8 GB. I've looked online and have seen posts saying that it's not a good idea to add RAM from a different manufacturer, because it could cause problems. Yesterday, I downloaded CPU-Z and according to the SPD tab of  this program, I have 8 GB of RAM, manufactured by SK Hiynix, DDR3L, PC3-12800 (800 MHZ), part number HMT41GU6FR8A-PB. The specs in my manual say my RAM is 1600 MHz. Should I trust what CPU-Z says and buy this RAM or is this wrong? If this isn't right, what would work in my Inspiron 3650? Would it be better to just buy a 16 GB module, and discard the 8 GB module that's already in there?    
Adding RAM to Inspiron 3650