I found that coretemp report 15~20C higher than CPU temperature reported by P5W DH Deluxe on my rig. Coretemp idle at 40C, load at 57~60C (2.9GHz, 320FSB), while P5W reports 27C idle and as high as 41C under Orthos (Prime95). I'm using Thermaltake tower112 +AS5.
Many others report only about 12C delta between coretemp and P5w. Does it mean I need to re-apply AS5? The tower112 is difficult to install so I try to avoid unless necessary. How do you think?