Does a Dell XPS 400 have fan control?

herrmant

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Oct 9, 2014
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I bought this old XPS 400 a few months ago and I was wondering if it had fan control for the CPU.
I can play FSX or Modern warfare 3 on it for over an hour and I cant hear the fan speed increase. The CPU it had in it was a PD 820 which I swapped out for a Pentium D 925.... With the old 820 the heatsink got to 44*C, now with the new chip it only gets into the mid 30s after gaming on it for A while. Does anyone know if the fan speed will increase once the processor thermal diode senses a elevated temp? Also... Does this Cpu have a thermal shut off? If so what temp? The data sheet says Tcase max 63*C but I know the cores may get hotter than this during normal operation. If it helps, the fan does have a 4 pin header.