I have googled any available piece information but did not get a confirmation on this.

Apparently, system temperature is NOT indicating the northbridge temperature, well at least not on my gigabyte GA-P35-DS3 mobo.

Due to the keen observation of one of our forumer, I have confirmed that the temperature sensor is at or near the southbridge.

When I direct a fan ONLY on the northbridge, the system temperature is static at 43'c (this is stock NB heatsink!)
When I direct a fan ONLY on the southbridge, the system temperature dropped to 41'c.....

Some sources indicate that the temperature sensor is an on-chip sensor in the ICH (southbridge) chipset.

My question:
- Does anybody know for certain what the "system temperature" is showing?
- Are there mobo's which show both system temp and NB temp?

Note : Remember that some AMD systems (which does not have a NB), also shows a NB temperature!!!!

Cool! I checked out this mobo and it is stated clearly about the NB temp : http://www.dfi.com.tw/Product/xx_product_s...TYPE=LP&SITE=US

How about current p35 mobos?

I wonder whether the GA-P35-DQ6 also show the NB temp?

Already pm him. Awaiting reply. If only high-end mobos have a temperature sensor at the northbridge, I guess the sensor is not on-chip then.....