Can you check if RAM has been replaced?

Hi, My sister bought a new computer from a company, it was a toshiba C660 something or other. It runs windows 7 home premium 64bit. When it first arrived it constantly BSODed, I tried all I could to diagnose the problem but in the end it seemed that getting a new one sent out would be the safest option. There was only a 3 day return window. There was a massive hassle even getting them to...