I remember having this same problem on a hackintosh. Installing the NullPowerManagement kext was the usual fix back then since DSDT patches were brand new and n

I remember having this same problem on a hackintosh. Installing the NullPowerManagement kext was the usual fix back then since DSDT patches were brand new and not well known by the community. If that kext is still available and compatible with 10.9 it's probably a good way to handle this until they fix it.