Which temperatue to trust?

[moltomateoxp]

I overclocked my x2 4200 to 2.454 at 1.375 volts with an arctic cooling freezer 64 pro. I get the following load temps using different software and methods:

Prime 95
Core temp: Core 1 59, Core 2 49
Asus Probe II: 52
Sandra: 53

Using DVD Shrink to get to 100% load:
Core Temp: Core 1 52 Core 2 48
Asus Probe II: 50
Sandra: 50

If core temp is accurate, core 1 gets extremely hot, more so than core 2. If the latter is accurate, my temps are good and my ac64 is doing its job. I also applied arctic silver so it may drop a few, but my question is, which of these methods produces a safe accurate temp reading?

I've done some research and what complicates the question is the extreme difference in cores using 2 instances of prime 95 using the appropriate affinities.

Thanks in advance for the help!

EDIT: Wow same topic title and general problem as another poster from 5 days ago, am I a noob or what. Will check other post's replies.

 

[moltomateoxp]

Dropped voltage to 1.35, dropped temps at load to 57 core 1, and 49 core 2. Much better. Now adding an intake fan. Also the search feature was very useful 😉 Also, load temps were from prime95 for 10 mins.

 

[sdy284]

well they're all reading the same sensor on the mobo....so they're all as accurate & trustworthy as that sensor is

 

[Mucker]

Core temp:

"The temperature readings are very accurate as the data is collected from a Digital Thermal Sensor (or DTS) which is located in each individual processing core, near the hottest part."

I would say THAT is as good as it gets..........