I was researching this model and I decided to check the user service manual for any processor info and they have a 1.8 GHz Pentium M processor listed as a replacement part 
. That means that not only is the processor socketed (and upgradable), it supports Dothan (probably to 2.0 GHz too).

. That means that not only is the processor socketed (and upgradable), it supports Dothan (probably to 2.0 GHz too).




I wonder when Dothan is released just how long it will take for HP to make it an option on the nc6000 (1.7GHz still isn't available).