GPU/CPU Thermal sensors and thermal monitoring..

On my quest to get to the bottom of why my by-core thermal readings don't work in HWMonitor (and even every other thermal monitoring program) even after swapping processors, I'm trying to find out if the thermal sensors on the laptop's mainboard itself is bust.

I opened up my laptop and noticed that the GPU has chips on its board that looks similar to some of the chips around the CPU socket. I wasn't able to take non-blurred photos of my socket, but I hope my descriptions would be enough for now. I'd like to ask whether my hunches are right (see attached photo)

Are the thermal monitors something like....

- the blue encircled object on the upper right side of the card--saw two of them about 2cm to the right of the socket, side by side (could be by-core sensors?)
- the green encircled thing on the lower right side of the card? I saw one of this directly below the processor--meaning it's at the center of the processor socket, almost touching the small metal bits under the CPU (could be ACPI?)

Lastly, what exactly are the temps for the ACPI showing? Mine I think says TZ01 or something, and it rises and falls when I stress the CPU..

Thanks in advance.

PS I already did as much googling as possible and haven't found anything as of yet. Just so we know. Thanks!

 

Nope. The blue circled thing is an inductor and the green circled thing is a capacitor. Both are there as part of the power regulation circuitry to smooth out the power delivery. Thermal sensors are all built into the package of the microchips themselves, at least for the past 6 years.

 

Oh.

Well, how does it explain that when I changed processors (I previously had a C2D T5800, now a T9600) it still doesn't show the temps? I understand that the processors themselves have their own sensors and that they are absent on ES chips, but both my processors are OEM so they should be reporting the right temps, correct?

Another thing, is it possible that the chipset doesn't support it? I remember having undervolted a friend's laptop with a GM45, and the sensors were working so I'm confused..there's no way the problem is rooted in software, is there?

 

In the picture, it's the part that says ATi Radeon in the center.