Western Digital 1TB WD10EZEX Blue internal hard drive (8.9 cm (3.5 inches), SATA 6Gb / s, 64MB Cache) (Personal Computers)
This HDD is doing what it should and that too within a reasonable time, but I'll send it back anyway, because it is - to my mind - much too loud. It's not just the typical hard drive whirring, but a constant hum (despite decoupled suspension in the h