What the 125C is going on?!

Hardware Hub Overclocking
1

Hello everyone,

So this is the issue. I used to use Speed Fan for Voltage and Temp monitoring, and it showed a 125C under one of the CPU temperature meters. I was worried, but nothing seemed to be affected (the CPU was stable under Prime95 and it's water cooled, in addition to that, the core metrics were normal) so I ignored it.

I moved on to using Intel's XTU that is designated for my board (it's an Intel DX58SO2) which has 7 CPU temperature metrics; 1 for "cpu" and 1 for each core, all of which are normal.

Now, I need to use OCCT as I'm trying to push my GPU a bit more. I can't, because it is detecting the same stupid stealth sensor that I can't seem to find, and is aborting every test because it thinks the CPU is at 125C. I've posted an image below showing my metrics, apart from OCCT's. XTU shows just about all the temperatures there are to show, including IOH and Voltage regulator.

My desktop's metrics

 You can see the Speed Fan reading, on the right 5th from the top, that reads -27C. This jumps from here to 125C in a split-second. I've got not idea on how to deal with this.

EDIT: This is a link to the full-sized image http://postimage.org/image/z935w6cxl/full/
Also, the whole lot of sensors that read temperatures in the 90s on Speed Fan, I have no idea what those are. 

2

there is no way your system temp is 92C that is probably a south or north bridge or maybe the GPU, I would use Furmark or GPU Shark to bench your GPU, bitcoin will also stress your GPU for max heat

3

Oh, forgot to include Shark at this shot. This was taken at idle and the GPU is at 42.5 and 35.5 respectively (the card is 6990, hence the difference in temp)

That 94/5 remains at that when the CPU is under load (used Prime95 for that). As for bridges, I'm a bit confused. The diagram Intel provides for the board shows 2 chipset components. The first, called the IOH, is described as providing "interfaces to the Processor and PCIE graphics" which sounds odd (seeing how it's close to the processor and appears to be the Northbridge), especially when the other part, also called an X58 chipset, is described to feature ICH10R, which is blatantly saying "it's the Southbridge".

Anyhow, the temperatures of the IOH is fine at 70-75 between idle and load respectively. As for the other chipset component, what I think is the Southbridge, it's so cold it's almost at room on idle, and does not get much worse under load.