Heatsink combinations...

[wbierman]

Tril0Byte-

I see you play with different heatsinks. Ever considered the Swiftec with a solid silver base instead of solid copper? I and a friend of mine are toying with the idea. Solid silver base with aluminium pins... What do you think?


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-Will

[Medic193]

What's everyone think of this HS. I've heard pretty good things about it.

http://2cooltek.safeshopper.com/1/252.htm?250

Thinking about ordering one.

[Martyn]

Originally posted by wbierman
Tril0Byte-

I see you play with different heatsinks. Ever considered the Swiftec with a solid silver base instead of solid copper? I and a friend of mine are toying with the idea. Solid silver base with aluminium pins... What do you think?


-----------------------------
-Will

Hi Will, well Ag certainly has a higher thermal conductivity than Cu, so in theory, it would be better. However, the difference (can't remeber the exact numbers) isn't that great. From what I've read about silver based waterblocks for example, there is little to choose between the two materials in practice. Interestingly, there are a couple of company's that produce a material calle CuSil, an alloy of copper and silver with a far higher thermal conductivity than either materials indevidually. The downside is, it's very expensive.

Whatever you use, construction and design play as much of a part in it. Look at that little siver based heatsink - whassit called? I can't remember, anyway, it gets beaten out in all the reviews by ythe standard Swiftech. I would prefer am MC462 with Cu base, over an MC370 with Ag base, because of the greater mass and surface area. You'd have to try it in practice, to find out for sure of course, but when you factor in the production costs, I would think that it would be prohibitively expensive. there is a company that produce pin-fin heatsinks identical to the ones Swiftech make, that will produce custom heatsinks to your design. If you're interested, I'll root out the link.

[Martyn]

Originally posted by Medic193
What's everyone think of this HS. I've heard pretty good things about it.

http://2cooltek.safeshopper.com/1/252.htm?250

Thinking about ordering one.

it's supposed to be pretty good. The first prototype was featured on overclockers.com about 6 months ago, and was developed in conjunction with them (discussions with Joe Citarella). They followed it through and made the production version. As far as I can remember, the fins are soldered onto the base, which accounts for a lot of it's better performance. Very few copper heatsinks are forged or extruded, most are assembled from stock and milled parts. the hedgehog has the pins just push-fitted into the base, which isn't an idesl. any material junction, is a thermal barrier, but much better to solder together, than push fit. If I was in the market, I'd either go for one of those, or the Swiftech MC462 :0)

[stall6g]

If you go with the Swifttech just make sure that you have plenty of room for it. I received mine courtesy of Hemi and the thing was a lot bigger than I thought that it would be even after reading all of the reviews on it. Another cheaper option might be to go with this: http://svcompucycle.com/svcgoldengate.html

It is exactly the same as an OCZ Gladiator but for a heck of a lot cheaper. Here is a link froma quick review by Joe Citrella: http://www.overclockers.com/articles391/

If noise is an issue with the 38cfm delta and you can do with a little less cooling then the 27cfm model that they have there is also a decent choice. Hemi would be the best guy to ask about hsf since he is currently doing a writeup comparision of a few of them.

[wbierman]

Long time friend of mine is a jeweler, so obtaining and casting silver is not a problem. Another close friend is a machinist so machining the silver and boring the hundreds of holes is not an issue. Had thought of pressed fit aluminum pins but no way to solder the dissimilar metals. Our next idea was copper tubes placed in an oven and brought up to soldier melting temps. That would work. This setup would match the Swiftec dimensions.


__________________
-will

[Martyn]

Originally posted by wbierman
Long time friend of mine is a jeweler, so obtaining and casting silver is not a problem. Another close friend is a machinist so machining the silver and boring the hundreds of holes is not an issue. Had thought of pressed fit aluminum pins but no way to solder the dissimilar metals. Our next idea was copper tubes placed in an oven and brought up to soldier melting temps. That would work. This setup would match the Swiftec dimensions.


__________________
-will

Oh well, you've the perfect option. Stock silver isn't all that expensive, just economies of scale (or lack of) would make production costs prohibitive for most. But if labour/skill is not an issue, then all else being equal, Ag would certainly outperform Cu. By how much, I wouldn't like to say. The thermal conductivity of Cu is roughly double Al, for example, yet a well designed Al sink, can outperform an average Cu sink. But Ag is much closer to Cu, so the material differences wiouldn't be so profound. But considering conduction is the only significant method of heat transfer, thenit follows that a sink made from the best conductor available, would be better.

Here's that link: http://www.coolinnovations.com/products/cpu.asp

[zhotfire]

Originally posted by Medic193
What's everyone think of this HS. I've heard pretty good things about it.

http://2cooltek.safeshopper.com/1/252.htm?250

Thinking about ordering one.

I've got 2 of them now and i'd have to say they're the best bang for the buck right now. The only "problem" i see is the high CFM they require if you really want the lower temps. The delta38s that came with mine(free promo, w00t!) are more than enough to get you to 1500Mhz. That sucker was way too noisy for my tastes, so i replaced it with the 5000rpm fan off a volcano2 for 1 of them. Works well, 1.2g @ 1.4g default voltage, ambient 21c, socket temp currently 46c. I'm currently working on a dual 80mm fan adapter(much quieter than the delta38). I'll post the results when finished. :)