Hi there, so I got here an old white MacBook 13" from 2008. I got it from a friend of mine who told me that the fans would ramp up too much and not calm down. And indeed, the tiniest bit of CPU load would send the laptop into rocket mode. A SMC reset and a clean install of Lion later (I don't know which one did the trick) I notice that the fan is often kicking in, but after a while it is going down again. Using MacsFanControl I see that the RPM are often going to the maximum of 6200, but so does the CPU temperature. It often jumps to 91 deg C, and takes a very long time to go down again. When the temp reaches 50+ deg C, the fans calm down. So, my thinking is that the fan, or rather the SMC, is working as intended. Instead, the fan either needs to be cleaned or after 10 years the CPU thermal paste needs to be replaced. iFixit's instructions don't look impossible to me. Question: Has anybody here ever done this? Anything I should be aware of?