Well just for the heck of it I installed PC Alert 4 that came with my Mobo. Well, when I installed it, it shows my idle CPU temp as 41C, MBM5 shows my CPU temp as 35C. So I reboot my computer and go into the bios and it shows 35-36...boot back into windows and MBM5 still shows 35-36 and PCA4 shows 40....I don't see how my computer picked up 5-6 degrees booting up, so I think MBM5 is reading more accurately....that make sense to you guys??