Aida64 on windows show MCP (a southbridge-like chip) temperature as 50C.
Lm-sensors doesn't show it at all.
My motherboard is an Asrock k8nf6g-vsta. Here's what sensors shows:
I'm using Lubuntu 14.04 with sensors version 3.3.4.
Here's the sensors-detect output:
"Driver `w83627ehf':
* ISA bus, address 0x290
Chip `Winbond W83627EHF/EF/EHG/EG Super IO Sensors' (confidence: 9)
Driver `k8temp' (autoloaded):
* Chip `AMD K8 thermal sensors' (confidence: 9)"
And /etc/modules:
"w83627ehf"
I would suggest that one of the three temp* temperatures shown in the sensors is your "MCP" temperature. lm-sensors isn't very good at labelling things. It just stacks the I²C monitoring interfaces up as it finds them.
But short of holding a blow-torch to your MCP and watching the output, I'm not sure how to confirm that one way or the other.
For graphics cards I have had limited success with lmsensors in the past. What I find works really well is nvidia-smi (from a package of the same name). This might not work for integrated chipsets very well but here's what I see on a discrete card:
$ nvidia-smi
Thu Jul 3 09:48:44 2014
+------------------------------------------------------+
| NVIDIA-SMI 340.17 Driver Version: 340.17 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 580 Off | 0000:03:00.0 N/A | N/A |
| 36% 50C P12 N/A / N/A | 520MiB / 1535MiB | N/A Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Compute processes: GPU Memory |
| GPU PID Process name Usage |
|=============================================================================|
| 0 Not Supported |
+-----------------------------------------------------------------------------+
