Yesterday, Other World Computing wrote a post suggesting you could not install third-party hard drives in the new Sandy Bridge iMacs. According to OWC, any change in the hard drive or hard drive bay would cause the drive fan to spin at maximum speed. Though this problem does exist, it may not be as new or as troublesome as everyone first reported.
According to the developer behind HDD Fan Control, this is a problem that has been present in iMac models since late 2009. The dev wrote his HDD Fan control application after he replaced his own hard drive and the fan speed for the drive increased to 6000 rpm. He used the hard drive's S.M.A.R.T. (Self-Monitoring, Analysis and Reporting T
