Real Temp - New temp program for Intel Core processors

[rge]

LINKS TO YOUTUBE VIDEOS BELOW SHOWING GRADIENTS

According to intel Tcase formula
Tjmax-Tcasemax gradient = theta(jt)*TDP
The higher the TDP the higher the gradient from Tj to Tcase. TDP is primarily dependent on load but also voltage, however core temps in themselves dont alter the gradient...just that under normal circumstance temps are only high at high loads. See formula in pic below.
Though you will never see this gradient, unless you measure tcase with thermocouple...as gradient from core to cpu temp is not more than 5C.

At 1V, IDLE ie LOW TDP, 2x266, there is a 5C gradient from tjmax to tcase whether temp is 60C or up to 100 C (no heatsink). ie, at 100C core IHS = 95C... or at 50C core IHS=45c, etc. (at lower core temps gradient is still 5C, but reads 10C from DTS reading 5C too high in idle range)

At 1.25v, IDLE, 9x333, there is a 7C gradient from tjmax to tcase regardless of temp, 60C to 100C, (slightly higher TDP as higher vcore)
ie at 100C tjunction IHS=93...or at 50C tjunction, IHS=43C, etc (at lower temps gradient still 7C reads higher from inaccurate DTS in low range)

At 1.4v, idle 9x333, there is a gradient from tjmax to tcase of ~10C from 60C to 100C (again higher idle TDP from higher vcore)
ie at 100C tjunction, tcase is 90-91, etc

Stock cooler, stock 9x333, 1.25 vcore
idle, gradient core to IHS = 6-7C
orthos load 14-16C
linpack load 22-24C

load at higher volts increases gradient, better cooling decreases gradient.

Video 1 demonstrates high temps with low TDP (IDLE) using 1.37 vcore (so temps would get higher) illustrates still only 9-10C whether temps are in low range or high range...only showed high range, point being gradient is TDP dependent, not temp dependent.
http://www.youtube.com/user/rge42

Video 2 demonstrates first intel cooler w/box fan, stock vcore 1.2, stock 9x333, idle (low) TDP, with 6-7C gradient (gradient reads 1-2C too high as 1-2C DTS error in that range. Then linpack load demonstrating 22-23C core to IHS gradient, then slightly higher gradient as decrease fan speed and lessen cooling ability.
http://www.youtube.com/watch?v=q7ua2FFByfI

I am done with testing for awhile...2:30 am...need to sleep. If anyone wants to duplicate experiment, just get thermocouple calibrated for surface temps (calibrated 4C higher per eng i borrowed from). drill small notch dead center in IHS very shallow depth to just seat tip of thermocouple, put small amount of thermal grease on tip...but to use second method to guage temps, mine were within 1C of IR temps, I duplicated approximate depth for tcase measurement per intel...though the notch did not alter temps but maybe .5 to 1C, it did however make them very reproducible within 1-2C.