For parts not working. All of a sudden windows wouldn’t load with blank screen. Power is going to the board. Upgraded to 16GB RAM. HP Envy 15 15-j151sa. The Envy 15-J151SA has an integrated Radeon HD 8650G Vido card as well as a dedicated Radeon HD 8750M video card and the sound is provided by Beats Audio with 4 speakers and two subwoofers producing fantastic audio especialy when playing videos.
eBay