PSU back fan (glows blue
PSU down fan (also glows blue
Graphics card fan
Yep 5 fans...and pretty quiet...
All are stock fans...and knowing the HP system, probably cheap ones.
My CPU gets around 30 Celsius, my mobo, PSU, and a laptop HD (which is in my desktop system) all read around 55 Celsius.
My friend gave me an old Pentium PC with 2 fans...one in PSU and one on CPU, and man, that thing is LOUD!