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Roscal · 07-22-2003, 10:14 AM

Tests done by BillA are only valid for his die simulator.. You can't compare directly the 2 graphs between 2 different die simulator.

First, the die area could be changed (so C/W TIM changed too but just a linear offset) and there is a thermal resistance in the C/W graphs from BillA which it is due to the T° probes location (copper volume between baseplate and probe), there is an C/W offset from all the bloc tested, but are they linear for each wattage and flowrate, that is the question?? It's not really the C/W waterbloc we have but the C/W of waterbloc+a part of the BillA die (probe location), we can't have the temperature on the die/bloc contact (temperature in base is not really the same). This little part is the same for all bloc so it's good.

His die simulator isn't the same than BillA, it's impossible. The test could be valid for him because with the same reference point on a same die simulator, after we can see how measures are taken, precision, etc to have a better view of the testing methodology.

Let him the time to explain his test rig, his methodology, etc..

Billa > there are some little mistakes in your nice article, you say "This is the same data as in Graph 3" but it's "This is the same data as in Graph 2" and the graph 11 is untitled "Thermochill 120.2" but it's "Thermochill 120.1"

07-22-2003, 10:14 AM	#44
Roscal Cooling Savant Join Date: Apr 2002 Location: North of France Posts: 198	Tests done by BillA are only valid for his die simulator.. You can't compare directly the 2 graphs between 2 different die simulator. First, the die area could be changed (so C/W TIM changed too but just a linear offset) and there is a thermal resistance in the C/W graphs from BillA which it is due to the T° probes location (copper volume between baseplate and probe), there is an C/W offset from all the bloc tested, but are they linear for each wattage and flowrate, that is the question?? It's not really the C/W waterbloc we have but the C/W of waterbloc+a part of the BillA die (probe location), we can't have the temperature on the die/bloc contact (temperature in base is not really the same). This little part is the same for all bloc so it's good. His die simulator isn't the same than BillA, it's impossible. The test could be valid for him because with the same reference point on a same die simulator, after we can see how measures are taken, precision, etc to have a better view of the testing methodology. Let him the time to explain his test rig, his methodology, etc.. Billa > there are some little mistakes in your nice article, you say "This is the same data as in Graph 3" but it's "This is the same data as in Graph 2" and the graph 11 is untitled "Thermochill 120.2" but it's "Thermochill 120.1" Last edited by Roscal; 07-22-2003 at 10:23 AM.