Has anybody ever had their CPU fan spin up to 5000-5500 rpm's slowly over time? When i boot it hovers around 3400-3600 rpms. After about 5-10 minutes the fan starts to slowly increase speed. Heres a screen shot...Its only up to 4700..but in a few it will reach 5000+. Any thoughts? I have the latest bios version and freshly installed winDers... Is this common or did i get a fluke MoBo or fan?