I see them on special at bigfoot, and I'm really tempted to get this for my 2.4c. Are they really that good? I would be bundeling it with a 92mm fan that will be middle of the road for sound vs performance.
Should I do it?
0
Comments
Geeky1University of the Pacific (Stockton, CA, USA)
edited October 2003
Yes, the SLK-900 series are really the best heatsinks on the market. I'd get it.
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Mt_GoatHead Cheezy KnobPflugerville (north of Austin)Icrontian
edited October 2003
YES
buy 2 since they are the best and you
will never have to worry about cooling again.
***Subject to local restrictions and enforced
the local authorities where aplicable. Void in Vt,Ct,
Mn,Botswana and Nepal.
If you look at the practical limits of air cooling, the heat transfer restrictions and efficencies and such. The 900 is within a very small amount of the practical limits. Special surface texturing and better flow control might let someone eak out slightly better performance. But with copper fins and low velocity fans you will never beat it by much.
IOW, buy it.
Is the slk900u really the end all be all of coolers?
and I answered:
YES
Isn't that to the point?
And as you can see, mtgoat completely missed the humor of my post
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LeonardoWake up and smell the glaciersEagle River, AlaskaIcrontian
edited October 2003
MtGoat, where's your humor today.
(Prime's intent was tongue in cheek: 'why don't you tell us what you really think')
I find the SLK900U to be excellent; not sure though, if it's better than the Alpha 8045 on my AMD rig. I like the flexiblity for fan size choice with the heatsink. I've experimented with different 80 and 92mm fans. I've used low power (low RPM) 92mm and have been a little disappointed. Right now, with this overclock of 700MHz (2800 -> 3500MHz), the CPU core is running 51*C with two instances of Folding running. The fan is my old favorite - Mechatronics 53CFM, modest dB output.
What I'd really like to try is a TMD 92mm fan. The problem with running a low RPM fan is that the large hub on the fan creates a significant still air block over the heart of the heatsink. I bet a 92mm TMD would knock off another 5*C.
BTW, that 51*C is with an indicated case temp of 31*C, ambient temp 25*C.
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Mt_GoatHead Cheezy KnobPflugerville (north of Austin)Icrontian
edited October 2003
OK so I'm suffering from a case of overdensity today. what can I say?
Ok, so one coming up. I feel no need to replace my watercooling that's on my amd, besides, I doubt that with anything other than a 110cfm delta eardrum splitter it would be able to tough 36°c under full load on a barton 2500. I just can't justify the cash for another watercooled system at the moment, but the cash for an slk900u and a decent fan isn't going to be a problem.
i saw a few pics of them, thats te 1 witht eh heat pipes right?
id like to learn more about the heat pipes, are there any special fluids or gases inside o them? i also dont see how a fan hook to it.
aslo what about the new Swiftech's new umm whats it called with the bent pins that takes the 92mm fan only at 23 DBA, when i find the name ill post it lol
edit// hehe i like my typos so im not goin to fix it, keep in mind its 8:14 am and im in skool, watching teh forums
SLK-900U doesn't have heatpipes. The fan hooks to an SLK-series HSF by using metal clips. Thin wire clips press through tiny holes on the frame of the SLK, then you pull the clip up to press down and lock on the holes of a fan.
It's almost impossible to explain without a picture, and I'm too lazy to snag a picture.
The cooler with the heatpipe is the Coolermaster HHC-001. As for what fluids they use
Cryogenic temperatures: Helium and Nitrogen
High-heat applications: Sodium and Potassium
PC Heat-pipes: ammonia, water, acetone, and methanol.
One thing I've found that helps improve cooling efficiency on the high density pin/fin heatsinks like the SLK series and the MC/MCX is using a focused flow fan like the Delta FFB's or Vantec Tornado, along with some kind of fan controller to slow those screaming bastids down so you can hear. I use the TT 3 speed fan switches so I can go from unbearably loud to quiet with them. The reason the focused flow fans work better on a high density heatsink is that they have an extra set of vanes in the fan housing that help to direct the airflow off the fan straight out on the exhaust side of the fan, which helps to limit the dead air zone under the hub and also keeps from spilling air off the sides of the fan blades and directs it down into the heatsink.
I've attached a pic of the 80mm Delta screamer so that you can see the extra set of focusing vanes built into the fan.
It's all about full speed! Run it loud, run it proud!
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LeonardoWake up and smell the glaciersEagle River, AlaskaIcrontian
edited October 2003
I tried the DIY fan speed adjustment with the Delta by shorting it to 7 volts. Unfortunately, it doesn't put out enough at that rate, but is very quiet. Currently using a Panaflo 92mm (L1A) on my SLK900 and a Mechatronics 53cfm 80mm on Alpha 8045.
Comments
buy 2 since they are the best and you
will never have to worry about cooling again.
***Subject to local restrictions and enforced
the local authorities where aplicable. Void in Vt,Ct,
Mn,Botswana and Nepal.
In the future, could you please clarify your posts? All this hee-hawing and double-talk only serve to cloud the issue at hand and confuse our members.
He asked:
and I answered: Isn't that to the point?
IOW, buy it.
And as you can see, mtgoat completely missed the humor of my post
(Prime's intent was tongue in cheek: 'why don't you tell us what you really think')
I find the SLK900U to be excellent; not sure though, if it's better than the Alpha 8045 on my AMD rig. I like the flexiblity for fan size choice with the heatsink. I've experimented with different 80 and 92mm fans. I've used low power (low RPM) 92mm and have been a little disappointed. Right now, with this overclock of 700MHz (2800 -> 3500MHz), the CPU core is running 51*C with two instances of Folding running. The fan is my old favorite - Mechatronics 53CFM, modest dB output.
What I'd really like to try is a TMD 92mm fan. The problem with running a low RPM fan is that the large hub on the fan creates a significant still air block over the heart of the heatsink. I bet a 92mm TMD would knock off another 5*C.
BTW, that 51*C is with an indicated case temp of 31*C, ambient temp 25*C.
I think it comes from boredom.
thanks for the help guys!
id like to learn more about the heat pipes, are there any special fluids or gases inside o them? i also dont see how a fan hook to it.
aslo what about the new Swiftech's new umm whats it called with the bent pins that takes the 92mm fan only at 23 DBA, when i find the name ill post it lol
edit// hehe i like my typos so im not goin to fix it, keep in mind its 8:14 am and im in skool, watching teh forums
It's almost impossible to explain without a picture, and I'm too lazy to snag a picture.
The cooler with the heatpipe is the Coolermaster HHC-001. As for what fluids they use
Cryogenic temperatures: Helium and Nitrogen
High-heat applications: Sodium and Potassium
PC Heat-pipes: ammonia, water, acetone, and methanol.
i saw a heat sink the other day, that looked like that base with heat pipes comming out of the bottom to the top into the fins
i belive it was for amd now that i think about it, but im pretty sure it was of SLK decent
my apologies, its a Thermal right SP-94 heatpipe Intel CPU heatsink
thats the swiftech 1 MCX462-V
I've attached a pic of the 80mm Delta screamer so that you can see the extra set of focusing vanes built into the fan.
When it comes to air cooling there are only two real competitors: thermalright and swiftech.