So I Have an early-2008 white MacBook, and it have always been running nicely with me, up until a few months ago, whenever turning on a YouTube-video the RPM and temperature rises up to around 100°-110° CELSIUS. Same when playing minecraft or any other thing that it took very easily before. Now I have gotten the MacBook pretty calm, running only RockMelt and Spotify, and the fan runs at 1900 rpm and the temperature is "down" to 67°C. I still think this is a bit high temperature and I find myself hearing the fan a bit too easily compared to what I used to, but I don't really know what the ideal is. Question is, should I max the fan (I use smcFanControl) up to 5000-6000? I have tried it a little, but the temperature still got all the way up to 90°C. I'm really afraid of my MB melting, in worst case causing any physical damage on me or anyone else. I appreciate any personal experiences or educational replies.