Cosmetic CPU Speed Detection Fix

About:

This guide will walk you through step by step on how to fix CPU Speed Detection under About This Mac

1. Open your SMBIOS.plist found in your Extra folder at the root of the drive

2. On the last line add the following:

<key>SMcputype</key>
<string>1281</string>
<key>SMmaximalclock</key>
<string>4200</string>

3. Change 4200 to match what your current overclock

4200=4.2 GHz
4500=4.5 GHz
5000=5.0 GHz
5500=5.5 GHz

4. Restart your computer then go to About This Mac and you should see the value that you had entered