I bought SS RC530-S03CH in Swiss. After 2 months used, my laptop warranty in Vietnam, by replace the main-board which fails. Then when you use applications that require a lot of graphics( Corel x6), the computer automatically shuts down unexpectedly. Or when running System rating, also suffered a similar situation. Please indicate the reason and the solution. Samsung center,they do not know what is? Thank harrytran0106@gmail.com