Motherboard Monitor 5 (MBM5) application's reported temperatures shown in the system tray.  Blue 0 = Caddy drive (not inserted);  Blue 37 = master hard drive;  Red 36 = CPU;  Black 37 = motherboard temperature:

Everest application reported temperatures (Computer | Sensor).  A little different to MBM5, because the screen clip was taken at a different time.  Maxtor master hard drive = 37;  CPU = 40;  Motherboard = 37; Graphics Processor Unit (GPU) = 48.   Both Everest and MBM5 report temperatures generated by the Winbond W83627THF sensor.