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Future fanless trinity build

post #1 of 4
Thread Starter 
Hi guys.

I'm presently rocking a 1090t @3,9ghz in a CM 690 ii case, but I am coming more and more to the conclusion that I don't quite need something as powerful and certainly not something as ugly and huge. I found the sound of llano quite interesting, and the sound of a quiet pc even more. Ditto that for the novelty of a' completely' quiet one without any fans at all. I did some digging on the net but didn't find a whole lot of cases nor people pushing these for anything beyond low-end htpc. I'd like to be able to do some gaming, even if I will have to lower the settings.

I live in Norway so while we do have a good selection of cases, we might not have all the smaller niche ones. However, I did find these
fc5-b-025-025.jpg
http://www.streacom.com/products/fc5-od-fanless-chassis/

fc8-b-025-025.jpg
http://www.streacom.com/products/fc8-fanless-chassis/

I'm leaning more towards the fc-8 as I like the look of it more, as well as it's not as wide. The taller case leads to taller heatfins which should help the cooling as well(?). It doesn't hurt that it's 40% cheaper either.
However, the heat sink for it only seems to have 2 pipes compared to the 6 of the fc-5, but I could just get more of them. Both of these recommend a no more than 65 tdp cpu, but in the techpowerup review of the fc5 this is said
Quote:
So, the cooling works and it does so quite well. You should be able to use 95W or even 125W CPUs in the chassis, but I would not go all out on generating unrealistic scenarios to push the thermals. For everyday use, movies, surfing and the likes, those type of processors will be just fine in the Streacom chassis.
http://www.techpowerup.com/reviews/Streacom/FC5_OD/6.html


Here is a thread of someone installing a 3500 in the fc8 ase
http://www.avsforum.com/avs-vb/showthread.php?t=1363820


As far as rumours for trinity goes, I've heard talks of a 20% increase in gpu capability with no increase in tdp. If this is the case, I should be able to get a 100w one and then underclock it until I get a suitable temperature under load. The llano series have plenty at either 65w or 100w, but these are very inaccurate, right? Surely a 3650 uses less power than a 3850 for instance?

Does this all sound like a feasible idea? I know it would be more sensible to just go for quiet fans, but screw being sensible tongue.gif
Any other fanless cases that any of you know of which might do a better job? It seems you could also fit a gpu in the case, but the heatsink might get too large and besides it would create an oven effect I reckon.

Thoughts and suggestions would be much appreciated. I've not completely decided to do this yet.
post #2 of 4
I think it is doable in FC8. FC5 has less surface area compared to FC8, so I wouldn't recommend FC5 if you want fanless cooling.

What I would do is put APU in (Llano or Trinity), and stress it with Prime95 or any other stress tool. As long as the temperature doesn't exceed 50C (I think that is the max safe temperature, not sure), you should be okay.

Make sure to put the case in a well ventilated area. That means no closed space. As for GPU I would only put passively cooled GPU in there.
Edited by trumpet-205 - 2/18/12 at 8:54am
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post #3 of 4
Thread Starter 
Thanks. Sounds like we're on the same page, had planned on doing that. Cpuworld says the max operating temp is 70.5 C though, so have it around 60ish in games should be fine. I read that many llanos undervolt very well, so that'll do wonders for the temp. What about the heatpipes, will just having 2 make a big difference or will it just be that the max temp will be the same but will just reach them faster?
Definitely skipping a gpu if I can.
post #4 of 4
Quote:
Originally Posted by grumbledook View Post

Thanks. Sounds like we're on the same page, had planned on doing that. Cpuworld says the max operating temp is 70.5 C though, so have it around 60ish in games should be fine. I read that many llanos undervolt very well, so that'll do wonders for the temp. What about the heatpipes, will just having 2 make a big difference or will it just be that the max temp will be the same but will just reach them faster?
Definitely skipping a gpu if I can.

Heatpipe simply carries heat from point A to point B. Surface area plays a bigger role in cooling. Greater surface area = more exposure to cool air = lower temperature. Because FC5 is smaller than FC8, FC5 has less surface area = less exposure to cool air.
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