CPU Temperature Different Between BIOS And ASUS PC PROBE

[Bored of Trade]

Which temperature reporting should I trust for my CPU? My BIOS tells me my CPU temperature is 38.5°C/101.3°F. The ASUS PC PROBE V2.23.01 and Motherboard Monitor 5.3.7.0 tell me my CPU temp is 30°C/86°F. These are idle temperatures. Which one is accurate? My system specs are as follows:

Pentium 4 3.0Ghz 512KB L2 Cache 800Mhz FSB (Northwood Core)
Boxed Intel Pentium 4 Heatsink and Fan using Arctic Silver 5 NOT the stock Thermal Pad
ASUS P4C800-E Deluxe Motherboard Rev 1.02 BIOS Version 1017.004
PC Power & Cooling Turbo-Cool 425 ATX Power Supply
ATI Radeon 9700 Pro
2GB (4 x 512MB) Samsung PC3200 RAM K4H560838D-TCC4
Antec PLUSVIEW1000AMG Case w/ 5 Antec 80mm Fans

<-- Bored

 

[klah]

I would use those as rough estimates at best:

http://www.bleedinedge.com/rev...bit_asus_temps_02.html