As I replied in the other threads, higher temps in the BIOS are normal.
The CPU cannot go into low-power idle mode until fully booted into Windows. You may see temps as high as 65-70ºC in the BIOS if you're using the stock Intel cooler. Even coolers like the H50 you have will allow higher temps while in the BIOS because the CPU is loaded up.
I don't think that is is that the CPU utilization is high, But the CPU speed is high, runs at normal speed and (ie 3.x GHz)) and does not drop down until windows is running, idle speed much lower - around 1.6 Ghz.