That’s my assumption and that’s it’s built into the chipset somewhere.
the cooling system of the PS3 uses two sinks over the main graphics CPS that feed to a sodium filled copper tube setup and finally down to the finned exchanger and a 3 stage fan.
aside from the two sink touching the main chips, there no other heat transfer from the components to the heatsink. If i knew where the elusive sensor was even remotely located in the case I could try to adapt a different heatsink to it.
Fuck you Sony…