from all the info we've gathered it probably is an inherent limitation in the design of your laptop[/b]
I believe you would be correct.
I damaged the keyboard cable connector yesterday when I removed it in order to clean the heat sink ect. So I plugged in a USB keyboard and left the factory keyboard detached, just for trial purpose.
The machine now runs ~15 degrees C less than it did before I removed the keyboard, and only 64 degrees running F@H @ 100% on both cores.
So now, when I get time at work, I'll fabricate a grill with an air filter element to replace the original keyboard.
The USB keyboard is funtional from system start-up before the OS loads, so I see no need for the original keyboard any more anyway, especially since a replacment is $50.22 from HP.
But my question now is, will allowing fresh air to the CPU fan/heat sink via removing the keyboard deprive any other components from needed air flow?