I too have a e6400 with stock cooler and am getting CPU temps of mid 50's Celsius when idle with no overclocking. Indeed, I am using a (non-deluxe) P5B. I have reseated many times. The HSF is blowing air that is only the slightest bit warm.
For me, all the temp monitoring software report the same temps. I suspect the Asus board is somehow reporting temps that are way off. I'm really eager for a solution.
For me, all the temp monitoring software report the same temps. I suspect the Asus board is somehow reporting temps that are way off. I'm really eager for a solution.