10.7.4 Power Management and Sandy Bridge CPUs

It's been a week since the 10.7.4 update, and an issue has cropped up with Core i5 and i7 Sandy Bridge CPUs. As part of this release, Apple updated the power management drivers. These new drivers are effecting performance, as some CPUs are stuck at a 16x multiplier, thus limiting them to a maximum clock speed of 1.6 GHz. When we discovered the issue, we released a temporary workaround on the