What's the name of the temperature sensor closest to the PCIe slots in a MacPro5,1?
I'm concerned that an installed PCIe card is overheating.
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This is the full list - from iStat Menus
There isn't really one anywhere near the PCI slots that's also in the same compartment. CPU, DIMM & IOH are all in the lower compartment, Drive Bays & PS are in the upper.
I've seen machines reporting a temperature for PCI Slot 1 - but these may have the original graphics cards in them... mine barely has an original anything.