nah, dell has blocked the sensors or something.
nout in the bios, and speedfan and mobo monitor pick up nothing.
the CPU fan speeds up under load, so i know well that the fan could potentially be controlled, and the temp could be monitored.... but... alas, dell do not seem to think that is a necessary requirement, so have stopped you accessing sensors.
in everest, under CPUID, "power management features", it says "thermal monitor 1" = supported... grrrr.