What is the BEST PASSIVE heatsink for a celeron 800. i.e w/o fan

[Pennstate]

I have a celeron 800 that can run without a fan with a cheap vantek heatsink. BUt I want a better one as an insurance.

However, the heatsink from the best heatsink/fan combo may not be the best heatsink. Recommendations?
If possible, keep it under $40 thanks.


BTW, I love the quietness of my bookPC with passive cooling. THe only fan in the case is the PS fan.

 

[Danlz]

SiliconeAcoustics and

AllElectronics

The Celery 800's maximum power consumption is around 20W. You should use a case fan to keep the temps manageable.

 

[Auric]

My previous C533A @825 was fine with a bog standard 486 heatsink but I got a larger one in preparation for what I thought would be a hotter chip. Eventually I got a P1100 @ 1234 but the temps have remained the same: usually 26-29 C up to 31 gaming. I also just use a thermally controlled PSU fan. That $1.25 from Allelectronics looks like a good bet. Replace the pad with compound and it might be a go'er
More fins would be better though. Copper fins are no good for passive but a copper base is good. The old school Alpha PEP66 or similar work for me. @ $20 bare they are not cheap especially when the cover will be scrapped but well within your budget. If you have the room though similar heatsinks with a wider base can be had. Can't recommend any specifically. Just look at the ones with the greatest number of thin aluminum fins with a copper base. As you say, many common heatsinks have thicker fins and rely on fans to work.

 

[Danlz]

Auric..I agree, with the exception of the "...thin aluminum fins" part. See Laminar Flow The jury might still be out on the fin spacing factor with copper bases.

 

[Auric]

Ah, interesting link. In my case the PSU fan is directly next to the HS and to help airflow I taped up all the vents except the front bottom and PSU exhaust. The case is on the floor so the intake is cool. Perhaps without the PSU fan a different HS would be closer to ideal but I think the fact is that these chips just do not require much cooling. Another tip is to lower the voltage if possible. Obviously Intel sets the specs to a model range (stepping) for convenience rather than what is required for a specific frequency let alone specific chip where there is some variable quality.

 

[Pennstate]

. Copper fins are no good for passive but a copper base is good

That is totally incorrect. If a passive copper heatsink is hotter than a passive aluminum one, it's because it's working better -- it's temperature is closer that that of the cpu core.



http://arstechnica.infopop.net/OpenTopic/page?a=tpc&s=50009562&f=77909585&m=8490955581&r=2980948581#2980948581

 

[Danlz]

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