OSX86 10.5.5 Update

To successfully perform a 10.5.5 update on OSX86 machines, you need to download the 10.5.5 update manually from the Apple webpage, open a Terminal and enter the following lines before running the update (and leave it running during the update):

1. sudo -s
   
2. while sleep 1; do rm -rf \
/System/Library/Extensions/\
AppleIntelCPUPowerManagement.kext; done
   

via InsanelyMac