HP DV7T - Core 0 temp different from Core 1

Hi,

I have a dv7t with the P8400 processor. I have been recording my temps using HWMonitor 1.10.0 for the past two weeks. I have noticed that Core 0 almost always stays at 43 degrees while Core 1 ranges from 37 degrees to 52 degrees.

I ran wprime tonight and I saw Core 0 range from 43 - 51 whereas Core 1 range from 40-58. Why is there a big discrepancy?

I turned off the fan always option in the BIOS but have the Zalman Nc-2000 on high. I am annoyed with the loud fan noise from the laptop whereas I can tolerate the NC-2000 fan noise.

Thanks in advance.

 

Have you tried the fan always on option and monitor your temps ?

I know a few degrees off between cores is OK.

 

the temperature difference is very normal, and occurs with any multiple core processor. The dual core processor in your system is like most intel processors in regards to their thermal probe location. core 1 will almost always run hotter for the reason which the cpu is made.
Basically on the inside of the processor it is like this:
Core 0 probe, Core 0, Core 1 probe, Core 1
The intel processors are made by slamming two processore together, so when this is done the probe for the core 1 is always between the two cores. This will always report a higher temperature for one of the cores. This is because heat will be inputted from both processors, thus reporting a higher temperature.
The core 0 probe only reports the temperature of the one core, cause the probe is on the one side of the cpu, not sandwiched between both cores.

K-TRON

 

the two cores on my dv7t vary similarly to yours in temp too - this is expected - i think nothing of it.

 

My two cores on the P7530 read identical temperatures. If your theory was correct, the two cores should never be the same. It would be a physical impossibility. Are you sure? I'm more apt to believe that the sensor itself is faulty e.g. a simple accuracy issue with one of the sensors.