I recently purchased a new laptop it is less than 7 days old. The laptop I purchased is a Dell Inspiron 15 3000 series Model Number 3543. They system was made earlier this year and the specs of my system include a 5th Gen i5 processor and Intel HD 5500 graphics running on Windows 8.1 The ram used in this model is a DDR3L 1600MHZ SODIMM 204 pin. The system came shipped with a standard 4GB Ram module. Only one slot of ram is allowed in my system so I upgraded it to an 8GB Kingston HyperX Impact which was also compatible under their website and My laptop is fully reading it properly. But i'm now noticing that the computer is booting very slow also with a buffering symbol upon start up under the Dell logo which has never happened to me before with the regular 4GB ram installed. Start up is taking longer and files opening are extremely slow at first. I tried removing it and placing it back in but nothing has helped and I don't know what to do. Would really appreciate it any help to fix this problem.