Thanks for the responses guys. Definitely will read the "Hacking" link. It has been quite some time since I had a 3.5" drive in my home (a desktop PC in other words), but the last one that I had was some Seagate 1Tb @7200 and I remember I noticed that it didn't do that "krrr krrr krrrrr" noise while...

I came across that thread while seeking information on the WD Red noise and am specially registering to commit my report. I have recently purchased a QNAP TS-251+ and put 2x 4TB REDs (WDC WD40EFRX-68WT0N0 fw: 82.00A82) in it. They are really loud while seeking. It's not that audible during the day e...