Does Anyone Use The Stock Fan?

[AETAaAS]

@scaryjim - There have been so many people boasting about new fan innovations that have yet to even produce a consumer prototype which I really am keen on. There was a new radial fan which was meant to spin at very high speeds but remain silent and the other big material which seems to have an application in almost everything; graphene.

Trying to work out the hight (how far from the mobo) this cooler is Titan it says "Heatsink Dimensions: 106 x 86.5 x 145 mm (WxHxD)" so is the hight from the mobo 86.5mm, or is it the 145mm?

I think you are right. Here is my educated guess given the fan dimensions as well;



I am not very familiar with that brand but if you want something of that class, give consideration to the Cooler Master Hyper TX3 Evo. Or the Zalman CNPS5X, I used that on my 1090T which was at stock was a 125W chip and overclocked, I got 3.6GHz and still sat very comfortably on the side of safe and given what it was up against, it was pretty quiet. In normal use, even more so.

[TheDutyPaid]

I think you are right. Here is my educated guess given the fan dimensions as well;

Thank you for the pic, So with me wanting to know the hight from the mobo, I should be looking at the depth measurement. I guessing this is the same for all cooler manufactures. I think you have the arrows in the right place as 86.5 must be across with the thickness of the fan being 19.5mm wide would add up to 106, and with about 40mm of heat pipes and CPU block.

I have in the case (1953 AC 34 Bush radio) I am using 110mm before it is poking out the speaker grill.

I am editing this post after looking at the i30 cooler i30 which lists as Heatsink Dimensions: 139 x 161 x 100 mm (WxHxD) it cant be like above as it has a 120mm fan on the front, my head does hurt with this.

[scaryjim]

@scaryjim - There have been so many people boasting about new fan innovations that have yet to even produce a consumer prototype

They had a couple of prototypes including a GPU block using their material. Like I said, I'm pretty sure the only reason they haven't done consumer products is because they're focussing on enterprise products (watercooling for dense server racks, for instance).

... the other big material which seems to have an application in almost everything; graphene.

Ah, graphene I work just next to the building site that is currently turning into the National Graphene Institute! I'm not sure exactly how many applications they'll eventually find for graphene, but I'm not sad about the invest it's bringing to Manchester...

[Bonebreaker777]

Water cooling in blade servers? It's me or there is not many around in usage (as far as server reviews go).

[AETAaAS]

Thank you for the pic, So with me wanting to know the hight from the mobo, I should be looking at the depth measurement. I guessing this is the same for all cooler manufactures. I think you have the arrows in the right place as 86.5 must be across with the thickness of the fan being 19.5mm wide would add up to 106, and with about 40mm of heat pipes and CPU block.

I have in the case (1953 AC 34 Bush radio) I am using 110mm before it is poking out the speaker grill.

I am editing this post after looking at the i30 cooler i30 which lists as Heatsink Dimensions: 139 x 161 x 100 mm (WxHxD) it cant be like above as it has a 120mm fan on the front, my head does hurt with this.

Yea, I think Titan is the odd one out though. Most coolers usually quote height as how high the fan is relative to the motherboard. If you have 110mm to play with, I'd go for the CM GeminII M4 and replace the fan with a full thickness fan (it comes with a slim 15mm fan, a full thickness 25mm fan is usually a good upgrade for coolers like this as it usually is better in almost every metric; CFM, static pressure, noise especially when all those are considered together). My favourite fans are the Silverstone Air Penetrators but knowing Hexus forums, everyone will have their own preference.

The heatsink is 44mm high. Add a 25mm fan and you still sit pretty low at 69mm. Plus I like downdraft coolers as it directly cools the VRM, SB, RAM and maybe even the back of the graphics card.

They had a couple of prototypes including a GPU block using their material. Like I said, I'm pretty sure the only reason they haven't done consumer products is because they're focussing on enterprise products (watercooling for dense server racks, for instance).

Ah, graphene I work just next to the building site that is currently turning into the National Graphene Institute! I'm not sure exactly how many applications they'll eventually find for graphene, but I'm not sad about the invest it's bringing to Manchester...

Well hopefully they build some capital to go for the enthusiasts. Graphene has some implications in cooling (see video). Imagine replacing prehaps the CPU contact block and maybe even the heatpipes with graphene.

[Bonebreaker777]

Nice video.

How good would be the conductivity from graphene to metal (geaphene replacing heatpipes, but cooling fins would be still metal right?)?

What is the thermal capacity of graphene? Out of curiosity.

Last question: price difference between graphene and heatpipe of similar capabilities?

[AETAaAS]

Nice video.
How good would be the conductivity from graphene to metal (geaphene replacing heatpipes, but cooling fins would be still metal right?)?
What is the thermal capacity of graphene? Out of curiosity.
Last question: price difference between graphene and heatpipe of similar capabilities?

I quickly Googled the second question and came across this paper.

It suggests that out-of-plane conduction of heat is poor which to my mind, would suggest traditional heatsink design (graphene heatpipe and metal fins) would not translate well with a graphene replacement. It may still be better than the current solution but I cannot make that judgement as no tested comparison was made. The reason for this is the planar arrangement of carbon molecules in graphene, where the strongest bonds are in that plane. As a result of this, they also hypothesised a remarkable 3D shape which is one plane of atoms. Truly the mobius strip of the 21st century.

Stated in the paper; "At room temperature, the specific heat of graphite is Cp ≈0.7 J g –1 K –1".

And your last question; no idea because graphene at this point in time is almost exclusively found in academic circles. A time may come when they make their way into commercial products but now is not yet that time.

Thinking about CPU heatsinks however, it may be possible to use graphene in the CPU block and wicks within the heatpipes but we will have to wait for some enterprising engineer to devise a solution.

[Bonebreaker777]

Well extensive and may I say brilliantly devised reply
Sad about answers One and Three but Two wasn't so bad. Personally I was expecting a lot worse (could be the fact that I never had personal experience with graphene, only carbon in coal form and that does not show any of these amazing abilities).
Well let's stick to heatpipes for now.

[Bonebreaker777]

Quick idea: ever anybody tried to make a vapor chamber with, let's say, six or eight heatpipes coming out of it? Sort of a flattened spider.
Thinking about the increased efficiency as compared to a cooler with Direct Contact heatpipes.

[AETAaAS]

Why thank you.

AFAIK, heatpipes are manufactured en masse and then bent and shaped to fit heatsink designs. This also means that heatpipes are shaped very specifically sometimes so the bending doesn't ruin the internal structures. So, no heatsink spiders as far as I know.

edit; just remembered - Heatpipes are held in low pressures, as this facilitates the evaporation of whichever fluid they choose. The structural properties of the cylinder is very amenable to this. More complicated structures may not be as easy to build reliably.

I was thinking about direct contact heatpipes. IIRC, Cooler Master were one of the first ones to do it and quite happily advertise this feature on their coolers. On the other hand, some other companies (I can't remember who) argue in favour of the block design because it spreads the heat better to all heatpipes and therefore maximizes use of the further heatpipes and subsequently, the fin area supplied by those heatpipes. The result is potentially a smaller thermal gradient; which in turn could expedite the transfer of heat.

(God, heatsink spiders sound like an enemy from that old Win95 game where bits of the computer like the capacitors, EPROMs, etc. turned into enemies )

[Gav]

I quickly Googled the second question and came across

It suggests that out-of-plane conduction of heat is poor which to my mind, would suggest traditional heatsink design (graphene heatpipe and metal fins) would not translate well with a graphene replacement. It may still be better than the current solution but I cannot make that judgement as no tested comparison was made. The reason for this is the planar arrangement of carbon molecules in graphene, where the strongest bonds are in that plane. As a result of this, they also hypothesised a remarkable 3D shape which is one plane of atoms. Truly the mobius strip of the 21st century.

Stated in the paper; "At room temperature, the specific heat of graphite is Cp ≈0.7 J g –1 K –1".

And your last question; no idea because graphene at this point in time is almost exclusively found in academic circles. A time may come when they make their way into commercial products but now is not yet that time.

Thinking about CPU heatsinks however, it may be possible to use graphene in the CPU block and wicks within the heatpipes but we will have to wait for some enterprising engineer to devise a solution.

Sorry to get technical but the material in that video is not graphene it's just a more ordered form of graphite. Graphene is only 1 atom thick (impossible to hold like that guy does in the video) and will mainly be used in circuitry. Also, I'd imagine you'd probably use a bunch of carbon nanotubes if you wanted to make a cpu block. Carbon nanotubes are pretty much strips of graphene rolled into cylinders. They were discovered in the 50s and their manufacture is much more developed than graphene

[AETAaAS]

Oops, fair enough. I figured the manufacture of the two forms are closely linked and they do seem to share the quick conductivity of heat.

[TheDutyPaid]

Just been reading up on ceramic heat sinks, which with the company I work for designing high end lighting using LED's we use a lot of. Ceramic is a very good conductor of heat, which I see there are a number of CPU coolers on the market using ceramics as the heat transfer part.

[Bonebreaker777]

Ceramic been introduced into mainstream PC cooling a while ago under the thermal compound Arctic Ceramique/Ceramique 2.

Céramique™ 2

[TheDutyPaid]

Ceramic been introduced into mainstream PC cooling a while ago under the thermal compound Arctic Ceramique/Ceramique 2.

Céramique™ 2

I was talking more about the heat sink part, like in this picture.

Just checking there are ceramic coated aluminium heat sinks but no solid ceramic ones. (none I could find)

[Bonebreaker777]

Ouch. Ceramic heat sinks? Sound interesting but I can't imagine big heat sinks made out of ceramic. Heavy. Fragile.

I wonder if coating a Al heat sink with ceramic makes any BIG difference.