X5000 and temp dockies

There are nowadays temp dockies for X5000, and they give the values for the CPU, PCB and PCIe.

From what points exactly are the PCB and PCIe temperatures measured? What does the PCIe value actually mean and what factors are rising or lowering it?

Hmm.... Not any answer?

It is somewhat ironical that some people make the effort to program a tool of which no one knows what it is REALLY doing !-)

In Cyrus mb Technical manual PDF:

8 MCU
The MCU is a supervisor for the Cyrus Plus motherboard and provides voltage and temperature monitoring for
the CPU.
...
8.1.3 TEMPERATURES READINGS
...
There are three temperature available to read on the Cyrus Plus motherboard. The temperatures given are
returned in this order:
1. PCB temperature
2. CPU temperature
3. PCIe switch temperature
Example:
CPU command #t
MCU Returns $t+20+38+4B
Represents
+32°C for the PCB temperature
+56°C for the CPU temperature
+75°C for the PCIe switch temperature


I don't own a X50x0
I just "converted" Cyborg and ZeroG work/source to a docky.

@jabirulo

>In Cyrus mb Technical manual PDF:

Thanks for the tip about the technical manual! But I was not able to find from it a) where the motherboard sensor(s) and b) the pcie-switch are located.

Or is the pcie-switch possibly the chip which has a heat sink on it but no fan? (located on the Cyrus board near the corner diagonally opposite to the battery holder)

This pcie-temperature seems to be the most sensitive to the blow speed setting of the case fans, which would logical if it has a heat sink.