ran cpu-z 1.46, when on powersaver mode, battery, the core speed shows 500mhz, multipler 2.5, then sometime it's 1000mhz and multiple 5. on the tx2000 800 is the lowest. Is this the 3 pstates you talked about? the tx2000 cpu-z shows "stepping 2"; but the rm-70 is only " stepping 1"; what is this? i checked the zm also shows stepping 1 but it's using cpu-z version1.45 (eversong's results). Btw, i found the fan on my tx2524ca comes on at high level much frequent than the tx2000, much louder, it did keep the bottom cooler than the tx2000 but it's annoying and will certainly offset any benefit the cpu is providng on battery life. Anyone else observe the same?