Okay, so... A few days ago I got myself a new HDD, Seagate ST1000DM003, as my previous one died. All was fine and well, until I noticed a loud whirring sound, fan-like, could even be classified as a car engine sound. Sometimes even going faster and louder and then slow down an get quieter for a bit. It's mostly present while playing a game. So my question is... can it be the HDD? And is it perfectly normal? All the temperatures are always within their normal range.