for inspiron no need to go fancy with gaming ddr3 sticks that have heat spreaders.  just get 2x 8GB DDR3-1600 PC3-12800 Non ECC Unbuffered 240 Pin Desktop only.  Do not get server ddr3 or registered or ecc. if you want good quality ddr3, get a reputable major name brand such as samsung, crucial, hynix, etc.  a no name brand ram may work but reliability may be sketchy.
Hello all! I'm about to put the cherry on top of my 3847 by adding some (possibly violently named) RAM. I'll be getting a matched set and 8 gb each. Is it ok to get pc3 12600 ram or does that matter? I want best performance but all the different parameters are confusing.DDR 3 is the only thing I know I need. Any help is appreciated! 
ddr3 question