46C insanely high? I was running my Barracuda at +55C for two years before I noticed. Apparently the drive didn't like the 5.25" place with old mousepad as padding to reduce noise from resonance The drive was still running strong until I retired it from use today (got a 160GB Hitachi Deskstar 7K250 with 8MB cache). The drive was specified to run at a maximum operating temperature of 60C (same as this new drive apparently).