berteso Posted November 3, 2008 Share Posted November 3, 2008 Hi, I was desperate to use Coolbook to undervolt my Laptop running Kalyway Leo 10.5.1 but I couldn't get it to work until I discovered in this forum (scroll to bottom of page) that I had to use a different version of AppleSMBIOS.kext. So I downloaded the one that was suggested and I got Coolbook to finally recognised my CPU and populate the freq/voltage table with defaults values! So I decided to purchase it and now my Laptop is nice and quiet. Anyway, as many of you asked me about that topic I couldn't find anymore, here is the AppleSMBIOS.zip that worked for me. Install it using Kext Help, reboot and launch Coolbook. If you see the default frequ/voltage values it means it works. Note: Make sure to backup your old AppleSMBIOS.kext prior to do anything. Link to comment https://www.insanelymac.com/forum/topic/134549-how-to-get-coolbook-undervolting-working-on-your-hackintosh/ Share on other sites More sharing options...
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