cpu temp higher than core temp - need help with offset

[Cooperstown39]

Sorry about yet another temp question but I searched the posts and didn't see anything related (and yes I have read the temp guide - many times).

Just completed a build using a Gigabyte 965P-DS3, E6320, Zalman 9500 hsf. no overclocking yet but using manual settings in bios. Plenty of airflow (4 case fans + p/s).

Ambiant = 22C
CPU temp at idle is reading 35C, Cores at 28C/30C
CPU temp at load (TAT 100%) is 53C, Cores at 45C/44C as reported

Temperatures relatively consistent between Speedfan, TAT, bios (cpu), and Everest.

Why is the cpu temp always higher than the core temps?

If an offset is needed, which one do I raise or lower and by how much? As an example, the temperature guide indicates a 15C difference between cpu and core - do I raise the core offsets by 22C (35 cpu + 15 = 50, 50 - reported 28C on core = 22C)?? OR do I lower the cpu offset (but this seems too low)??

Also, this is my first build using Vista - could this be software related?

Any / all guidance is welcome - Thanks!

 

[CompuTronix]

Check your BIOS to be certain that PECI (Platform Environmental Control Interface) is enabled. This will typically correct inverted Tcase and Tjunction temps. Re-test your rig and post Results and Variables as shown in the Guide, then we'll deal with your Offsets.

Hope this helps,

Comp

 

[Cooperstown39]

Traveling this week but should be able to check this on Friday and will post results. Thank you for the help!!

 

[Cooperstown39]

I can't seem to find the PECI option - used Ctrl F1 to display advanced settings in bios but this does not appear in any of the menus. Could it it be labeled as something else? This is an Award bios v.6.00PG (bios date is 5/28/07 and is the latest update from Gigabyte for this board).

 

[CompuTronix]

Your board may not be PECI equipped. Please list your Vcore.

 

[Cooperstown39]

Since the temperature readings appeared unreliable, I lowered voltage on the Vcore. Running at 1.248 as per CPU-Z and 1.25 as per Everest. Slightly overclocked to 333 MHz (6x multiplier for 2GHz). Orthos stable for 8 hours.