DELL Latitude E6500/6400 Performance Issues
Slashdot just posted a story about performance issues with DELL’s Latitude E6500/6400 series notebooks; this is noteworthy simply because I have/had the EXACT same problem. DELL replaced my motherboard twice and cooling system once and the problem finally went away, for how long, who knows. Screen shot below of my system when the problem was in full swing. You can see Intel Speedstep kicking in to throttle the effective Mhz of the CPU.