NB Temp Sensor

Can anybody tell me what the "NB Temp" sensor is
Larry Gorbet wrote on :
Can anybody tell me what the "NB Temp" sensor is, as reported for the iMac G5 (iSight) by temperature-monitoring utilities like Temperature Monitor and ThermographX? I haven't been able to find out anything from the usual Apple support sites nor the documentation for the monitoring software.
Paul Russell replied on :

Larry Gorbet wrote:

Can anybody tell me what the "NB Temp" sensor is, as reported for the iMac G5 (iSight) by temperature-monitoring utilities like Temperature Monitor and ThermographX? I haven't been able to find out anything from the usual Apple support sites nor the documentation for the monitoring software.

My guess would be that it's the temperature of the north bridge chip.

Paul