QUOTE(saturn85 @ Nov 9 2010, 04:50 PM)
Found the problem.
Casing fan stuck! Won't even move when I tried to move it with my fingers.
Replaced it and the now WD 1TB Black is running at 40 celcius during normal operation.
Anyway, here's a summary of my other HDDs right now.
WD1200JD (5 years old drive?) - 37 celcius normal operation
WD2500KS (4 years old drive) - 44 celcius normal operation
WD3200AAKS (2 years old drive) - 37 celcius normal operation (operating system)
WD6400AAKS (1 years old drive) - 39 celcius normal operation
I am going to retire the WD1200JD and WD2500KS soon.