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profdlp
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profdlp
21,407 Posts

Question New CPU Cooler

What do you think of this? For now, it's P4 only. I would be curious to try an Athlon version.

Read about it here.


Prof
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GHoosdum
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I wouldn't trust it for PC that's used for more than joe-schmoe applications.
If you run it 24/7, fold, play games, or overclock... stay away!
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TheLostSwede
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You would still need a massive amount of fans to get the air around the case to keep that cool.
I tried the waterblock on the northbridge without any water go through to try it as passive, it went into windows for 4 minutes, then freezed. Thats the northbridge which dont creates anywhere near as many watts as a cpu does. A highly overclocked barton puts out around 120W or more, a pentium 4 puts out at least 70W at stock. You need a massive flowrate in the case.
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a2jfreak
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That HS might be better than chewing gum wrapping paper, but not much. I'd pass on it.
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profdlp
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profdlp
21,407 Posts

Well...

a2jfreak said
That HS might be better than chewing gum wrapping paper, but not much. I'd pass on it.
That would make for an interesting article. Someone should try it and write it up.


Prof
GHoosdum
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Donate me two processors and I will...
Geeky1
No comment.
Geeky1
7,972 Posts
You guys should read the article @ dan's. I've known about this thing for a while and have been trying to finagle a way to clamp it onto an athlon. Heatpipes conduct heat far, far better than solid metal does, and Dan got something like .50*C/W with it using a low-speed case fan pointed at it from something like a foot away (that's what I recall that he said anyhow). If you were to strap a fan or two to that thing, it'd probably make for one hell of a cooler, possibly better than the slk-900.
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GHoosdum
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Geeky1 said
You guys should read the article @ dan's. I've known about this thing for a while and have been trying to finagle a way to clamp it onto an athlon. Heatpipes conduct heat far, far better than solid metal does, and Dan got something like .50*C/W with it using a low-speed case fan pointed at it from something like a foot away (that's what I recall that he said anyhow). If you were to strap a fan or two to that thing, it'd probably make for one hell of a cooler, possibly better than the slk-900.
I read the article. That's why I want two CPUs donated to me, and I'll supply the chewing gum wrapper and that heatsink. We'll see how long it'll fold gromacs with both setups before the CPU burns out. I'm prepared to keep an open mind. I'll be surprised, though, if the CPU doesn't burn out before completing one WU with the fanless heatsink, and I'll be surprised if the CPU doesn't burn out before booting to Windows with the chewing gum wrapper... but I'll report it honestly. I plan on using Wrigley's Doublemint, unless anybody has a better suggestion?

Send on the CPUs!
profdlp
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GHoosdum said
I plan on using Wrigley's Doublemint, unless anybody has a better suggestion?

Send on the CPUs!
Use Big Red - it'll drop those temps like a peltier!


Prof
Geeky1
No comment.
Geeky1
7,972 Posts
actually, it won't burn up @ all... clock throttling...

They claim that @ 2.8GHz it can't handle full load blah blah blah... assuming you got results identical to Dan's (0.78*c/w w/o the fan) and the maximum room temperature never exceeded 27*C (~80*F) you could keep a 48w heat load below 65*C, which is not quite good enough for a P4. However, Dan also tested it
super-quiet sub-two-watt case fan pointed at it from several inches away. And bing, there was that big forced air cooling improvement once again; it didn't take much to get the score down to only a hair above 0.5°C/W.
A sub-2w case fan is gonna move ~30cfm or less if it's 80mm and it will be very, very quiet. So, you assume 0.5*C/W, and the thing can now handle a 76w heat load, which is good enough for any P4 below 3GHz; the 2.8 dissipates 70w of heat, so it'd probably run somewhere around 62*C, which is uncomfortably warm but not dangerously hot.... I want an Athlon version!
danball1976
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I don't know, looks way to tall, and there is no place to put a fan on it.

This however, makes more sense:
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Black Hawk
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danball1976 said
I don't know, looks way to tall, and there is no place to put a fan on it.

This however, makes more sense:
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mmonnin
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I wouldnt think heat would travel up that far to do it much good.
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Geeky1
No comment.
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mmonin: 1 word- heatpipe.
a2jfreak
madasiemanym
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OK, OK. Perhaps I was a bit over-stating the wonders of chewing gum wrapping paper, but I still don't think that HS would do very well.

I seriously doubt it would be a major source of competition to the SLK-900 like Geeky1 proposed.

However, like you, I am willing to be surprised.

GHoosdum said
I'll be surprised, though, if the CPU doesn't burn out before completing one WU with the fanless heatsink, and I'll be surprised if the CPU doesn't burn out before booting to Windows with the chewing gum wrapper... but I'll report it honestly. I plan on using Wrigley's Doublemint, unless anybody has a better suggestion?

Send on the CPUs!
Geeky1
No comment.
Geeky1
7,972 Posts
Of course, I could always be mistaken too... (not likely tho... I'm almost never wrong ) but if you figure that the thing is indeed capable of cooling a p4 without a fan, in theory, if it had a fan, it would be one hell of a heatsink.
TheLostSwede
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TheLostSwede
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Geeky1 said
Of course, I could always be mistaken too... (not likely tho... I'm almost never wrong ) but if you figure that the thing is indeed capable of cooling a p4 without a fan, in theory, if it had a fan, it would be one hell of a heatsink.
Think of it this way instead: Where is the idea then if it would have a fan?With todays "wattmakers, its IMPOSSIBLE to run the cpu in a fanless system and without liquid cooling. Cant argue with physics.
mmonnin
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mmonnin
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It doesnt look like a heatpipe to me. I dont see any hollow parts.
Geeky1
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Geeky1
7,972 Posts
the u-shaped thing the fins are mounted to is a heatpipe...
http://www.tsheatronics.co.jp/englis...ogy/index.html
Mancabus
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Mancabus
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What I am wondering is how heavy the thing is. I mean you don't want too much weight sticking out ready to snap the motherboard into pieces. Although that probably wouldn't happen.
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WuGgaRoO
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hmm...this definatly seems interesting to say the least....but, before i blindly and ignorantly make any assumptions, ill wait for the benches to come out
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