Hi folks, My current setup is a 2008 aluminium Macbook with a Core 2 Duo processor, which means I am able to undervolt my cpu in order to reduce temps. This is done by a fairly old tool called Coolbook which requires a $10 licence. With help of tutorials on this forum I was able to get it working on Mavericks. I was wondering if anyone has Coolbook running on Yosemite? If not, I will give it a shot and report here once Yosemite is officially released.