Passively cool a P4 1.5ghz Willamette?

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imzjustplayin

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http://www.zalman.co.kr/eng/product/view.asp?idx=86&code=009

Would this be sufficient to cool a 1.5ghz P4 Willamette Socket 423? Is there something better than this perhaps?

How about this?
http://www.zalman.co.kr/eng/product/view.asp?idx=85&code=009
I know it comes with a fan and it expects me to use it but the problem is the case in which this processor is enclosed in is shitty and therefore won't facillitate the installation of this odd fan setup. If I can use this to passively cool this 65w processor (I know it's lower but I'm overestimating) then I guess it'll be fine.

http://en.wikipedia.org/wiki/List_of_Intel_Pentium_4_microprocessors

In silent mode for the aluminum one it says it has a thermal resistance of 0.36 °C/W but that's at 1300rpm.. If I'm reading that rating correctly, that means that a 65 watt CPU should become the equivalent of a 23.4 watt CPU/the temperature would be 23C, right? I'm just wondering what the thermal resistance will be if it's got no fan.
 
kill4killin said:
Scythe Ninja Rev-B...best passive cooler, hands down.
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yup. just to give you a perspective of how well the Scythe NInja Rev-B passively cools, I gave mine to a friend for his Pentium D 950ES chip, and he was idling around 50C without the fan.
 
i dont think the mini-ninja will cool nearly as well as the big boy ninja. its just not big enough.

however, the mini-ninja with a small fan would work wonderfully
 
If you don't mind putting in a small fan, the Thermalright XP-120 or XP-90 might also suit your needs. If your limited on space, you may want to abandon the passive idea as passive requires a large heatsink to help disipate the heat, if your cramped on space, a slightly smaller heatsink with a quiet low CFM fan would do the trick just fine.
 
The Willamette 1.5 is rated at 57.9 watts. The way I understand that is it will draw up to that amount under heavy load with normal operations. In fact, it says
The Thermal Design Power (TDP) (sometimes called Thermal Design Point) represents the maximum amount of power the cooling system in a computer is required to dissipate......The TDP is typically set not to be the most power the chip could ever draw (such as by a power virus), but rather the maximum power that it would draw when running real applications.
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Obviously you need both airflow and a heatsink. The better (as in bigger, ie. Ninja) the heatsink, the less airflow you need, but you will still need some. How bad is this case? Even with a decent heatsink that should passively cool your Willamette 1.5, if the airflow in the case is restricted enough it wont be able to do its job effectively.
 
Direfox said:
The Willamette 1.5 is rated at 57.9 watts. The way I understand that is it will draw up to that amount under heavy load with normal operations. In fact, it says
Obviously you need both airflow and a heatsink. The better (as in bigger, ie. Ninja) the heatsink, the less airflow you need, but you will still need some. How bad is this case? Even with a decent heatsink that should passively cool your Willamette 1.5, if the airflow in the case is restricted enough it wont be able to do its job effectively.
Click to expand...
Just imagine putting a power supply over the CPU socket and then figuring out how much space is between the board and the PSU, that's how much room I've got. God I hate these stupid designs..

I choose 65w and I'm saying there is no airflow because that's worst case scenario, otherwise it's really 57watts and some airflow from the PSU that's right above it. And yes the minininja is wayyy too big..
 
Any Zalman on the lowest setting is absolutely silent even with the case cover off. Just a suggestion but if you absolutely have to go passive I have no clue. :D
 
I also have a 1.5 willamette, but I don't run it passive; I use the stock HSF, and a couple pieces of cardboard to mount a 120mm fan to it. Dead silent, but takes a lot of room.
 
Its ghetto mod time! This sounds pretty weird, but I have used paper towel roll centers as ducts to direct airflow before and it worked. Plastic piping would probably be a lot better though... less likely to get too hot and catch on fire :D Really though, if you can direct some air to the passive heatsink with a duct system, you most likely will get it cool enough to keep your temps within the lines.
 
StealthyFish said:
yup. just to give you a perspective of how well the Scythe NInja Rev-B passively cools, I gave mine to a friend for his Pentium D 950ES chip, and he was idling around 50C without the fan.
Click to expand...

IDLING at 50C??? YOU CALL THAT GOOD??? THAT SUCKS, passive cooling a cpu is best left for the pentium 133mhz, not for a pentium 4. Put a fan on it.
 
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