Bought a RED and Green at same time. My brother in law works for WD, so I’m partial to these drives. The GREEN purred like a kitten, but the RED (supposedly faster) drive was constantly accessing and driving me crazy with all the noise. Saw a bunch of posts on this on Amazon, suggesting it was access or parking of drive issues. NOPE. Was that at all for me.
After 7 months of this, my computer finally gave up the ghost. Thought my MB crashed, yet i still had a green light on the MB. But not at all. It was simply the a wattage issue with the new drive.
SOLUTION: I replaced my current 700 watt Power Supply with an 850 watt power supply, and PRESTO! ALL IS WELL. The RED drive is so quiet i NEVER hear it, even when gaming.
Turns out that the RED drive demands extra wattage than the green. So if you buy it and things get noisy, try upping the power supply. Seems my video card appreciated it too.