what heatsink

9th February 2004, 21:56

soon I'll put my Linux machine back together. I'm wondering what heatsink I should use. I've used my SLK800 before, with a silent 7V fan the CPU got pretty hot: stock speed +40 idle, stressed: dunno. stressed, a temp probe between some fins of the SLK reported 44°

I'm using a Koolance case. the PSU is 300W and has a silent fan at 5v (pretty close to unhearable).

I've got two heatsinks available: my stock 2500+ heatsink with copper base and a V7+ heatsink. both will be used with 60-80mm fan adapter. I'll put a few casefans in the machine, but they'll only push very little airflow. same goes for the CPU fan, it used to be 7V but now I want to give it only 5Volt

so, what HS performs best with little airflow? I think the 2500+ heatsink, because copper heatsinks need a LOT of airflow to work properly... copper doesn't give away like aluminium does

[Bonbon] · 9th February 2004, 22:07

i would think de aluminium one , but test it , its not too much work is it ?

9th February 2004, 22:07

actually it is :/

I don't want to test the heatsinks, compare them and take everything apart every time

[Bonbon] · 9th February 2004, 22:08

then take the risk , take the alu

9th February 2004, 22:16

I shouldn't doubt about it. The stock amd heatsink has a copper base and alu fins so it should perform better with a less performant fan.

9th February 2004, 22:27

The stock HS will prolly work better, because there is more distance between the fins so there's no need for high CFM to get the air at the base.

9th February 2004, 22:50

true go with the heat dissapation of the alu.

10th February 2004, 17:53

copper takes absorbes the heat much better but alu can give away the heat better
so take te alu one, and same reason like HardFreak

10th February 2004, 22:38

Quote:

Originally posted by Da_BoKa
copper takes absorbes the heat much better but alu can give away the heat better
so take te alu one, and same reason like HardFreak

Actually, according to my lessons physics, that isn't true.
I think the copper will perform better because it has more fins. And I think it will even perform better with the fan-adapter. Just my 2 cents.

10th February 2004, 22:47

Quote:

Originally posted by Laagvliegerke

Actually, according to my lessons physics, that isn't true.
I think the copper will perform better because it has more fins. And I think it will even perform better with the fan-adapter. Just my 2 cents.

well, that's what most people say. I'm going with the alu, copper needs a lot of airflow to cool well

9th February 2004, 21:56	#1
TeuS Posts: n/a	what heatsink soon I'll put my Linux machine back together. I'm wondering what heatsink I should use. I've used my SLK800 before, with a silent 7V fan the CPU got pretty hot: stock speed +40 idle, stressed: dunno. stressed, a temp probe between some fins of the SLK reported 44° I'm using a Koolance case. the PSU is 300W and has a silent fan at 5v (pretty close to unhearable). I've got two heatsinks available: my stock 2500+ heatsink with copper base and a V7+ heatsink. both will be used with 60-80mm fan adapter. I'll put a few casefans in the machine, but they'll only push very little airflow. same goes for the CPU fan, it used to be 7V but now I want to give it only 5Volt so, what HS performs best with little airflow? I think the 2500+ heatsink, because copper heatsinks need a LOT of airflow to work properly... copper doesn't give away like aluminium does

9th February 2004, 22:07	#2
[Bonbon] Member Join Date: Jun 2002 Posts: 692	i would think de aluminium one , but test it , its not too much work is it ? __________________ intelD820 (2*2.8), 1gb ram , 6600gt , lots of hdd

9th February 2004, 22:08	#4
[Bonbon] Member Join Date: Jun 2002 Posts: 692	then take the risk , take the alu __________________ intelD820 (2*2.8), 1gb ram , 6600gt , lots of hdd

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9th February 2004, 22:16	#5
Vulk Posts: n/a	I shouldn't doubt about it. The stock amd heatsink has a copper base and alu fins so it should perform better with a less performant fan.

9th February 2004, 22:27	#6
wutske Posts: n/a	The stock HS will prolly work better, because there is more distance between the fins so there's no need for high CFM to get the air at the base.

9th February 2004, 22:50	#7
FreeStyler Posts: n/a	true go with the heat dissapation of the alu.

10th February 2004, 17:53	#8
Da_BoKa Posts: n/a	copper takes absorbes the heat much better but alu can give away the heat better so take te alu one, and same reason like HardFreak