Hello people, My sister has a Toshiba satellite a300 which I am using now. When she was using it, she had problems with it freezing all the time and she thought it was due to over heating in the computer. I concluded otherwise when I used it for sometime because it didn't use to freeze that much when I used it and I could use it for longer periods without a problem. Turns out she opens too many applications that eat up the ram and I don't. This baffles me also because the ram(2gb) is ok to handle an operating system like win7 which she was using without a problem, unless it was faulty. So I upgraded to win8 since I read it takes less ram than win7. I used it with less problems but anytime she uses it with all those many applications she opens, it freezes. Thus I decided to upgrade the ram to 3gb(adding an extra gb) and it worked fine for sometime but then it restarted and kept on restarting. Problem is each ram card works fine when used independently but only restarts when used together. I am approaching my exams week and I am getting a bit frustrated by this problem. Any help would be gladly welcomed. Thanks!!