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AngryAlpaca · 04-07-2004, 05:53 PM

You say that you will get lower temperatures with watercooling. What is the typical thermal resistance of a heatsink versus the typical resistance of a NB waterblock? It seems that with ~160W (CPU + GPU, approximate figure) on the loop already (Using a thermal resistance of 0.04C/W for the rad), you'd get water temperatures of around 6.4C above ambient. So, your NB could never fall below that. I'm going to assume that case temperatures are 2C above the temperature going into the radiator. Thus, a NB heatsink could have a thermal resistance of 0.44C/W (using 10W,) and still have lower temperatures than watercooling... Does the low airflow on a NB cooler cause a higher thermal resistance than that?

04-07-2004, 05:53 PM	#7
AngryAlpaca Cooling Savant Join Date: Jan 2004 Location: Alberta Posts: 631	You say that you will get lower temperatures with watercooling. What is the typical thermal resistance of a heatsink versus the typical resistance of a NB waterblock? It seems that with ~160W (CPU + GPU, approximate figure) on the loop already (Using a thermal resistance of 0.04C/W for the rad), you'd get water temperatures of around 6.4C above ambient. So, your NB could never fall below that. I'm going to assume that case temperatures are 2C above the temperature going into the radiator. Thus, a NB heatsink could have a thermal resistance of 0.44C/W (using 10W,) and still have lower temperatures than watercooling... Does the low airflow on a NB cooler cause a higher thermal resistance than that? Last edited by AngryAlpaca; 04-07-2004 at 11:21 PM.