if possible I'd like to get an official response as to why apparently all current Intel desktop boards automatically enable AAM (Automatic Acoustic Management) on any connected SATA hard drive and set it to slowest (quiet) operation mode yet do not offer a BIOS option to control this behavior. I have personally observed this with the following boards: DP45SG (fixed in BIOS 116), DP43TF, DG45ID, DG43NB.
The AAM status of the hard drives can be checked with CrystalDiskInfo. The setting affects random access time of the hard drive, quite mode slows down random access time to make the drive less noisy. I don't understand why Intel thinks it should secretly decide about the customers hard drive performance....