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Looking for a fanless (passive cooling) heatsink that can fit into Lian Li PC-Q07 Case - Page 2

post #11 of 17
Thread Starter 
Quote:
Originally Posted by windfire View Post

These 3 factors (small case, powerful CPU, passive heatsink) do not get along well with each other. Only 2 can co-exist, IMHO.
Small case (PC-Q07) + 4GHz 2500K --> no passive heatsink which can be fitted in is thermally adequate
Passive Heatsink (Nofan CR-95C) + 4GHz 2500K --> small case cannot accommodate the size of the passive heatsink needed
Small case + passive heatsink -->cannot cool 'powerful' CPU (eg 4GHz 2500K)
This chart gives a rough idea of how a 'large' passive heatsink like NoFan CR-95C cools various CPU in an acitve/passive case.
558
(source:http://www.overclock3d.net/reviews/audio/nofan_cr-95c_icepipe_95w_fanless_cpu_cooler_review/1)

Will small case + passive cooling (saying one of the 70mm class cooler) be able to handle a lower clocked cpu(saying 65W "S" type power efficient ones)?
If so, a 3475S would be more than enough for me, leaving the most demanding task to my existing primary system (my new build is secondary system which is intended to use in my bedroom).headphone.gif
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post #12 of 17
Quote:
Originally Posted by INGRAMLI View Post

Will small case + passive cooling (saying one of the 70mm class cooler) be able to handle a lower clocked cpu(saying 65W "S" type power efficient ones)?
If so, a 3475S would be more than enough for me, leaving the most demanding task to my existing primary system (my new build is secondary system which is intended to use in my bedroom).headphone.gif

Almost any other aftermarket cooler will be better and more silent than the Intel stock one.

If you will be using that computer as a backup, why not settle for an i3? It is quite the awesome chip and runs cooler than an i5. Just pair it with a decent GPU and you're set, or a good mobo and use the IGP.

If you're keen on an i5, and instead of spending a premium on a lower clocked CPU, what you could do is undervolt a regular i5. Heck, that would save energy, money, generate less heat and get higher "stock" speeds. An i3 could go even lower than that though.
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post #13 of 17
The Q-07 basically uses the PSU fan as an exhaust, so it's not like you would have a passive system anyway. So imo it wouldnt make a difference to use a very slow spinning fan on the HEatsink, so what you might want to consider: Slow Spinning PWM fan, Low Profile Cooler with reversed fan that sucks the air in the psu.

Prolimatech Samuel 17 plus Enermax TB-Silence.

Big Shuriken plus 25mm thick fan.

or another good Alternativ: The new NH-L12 from Noctua where you can put a fan underneath the Heatsink.

And i would defintely use something with a lower TDP, the best would be waiting on Ivy Bridge. And you can undevolt the CPU yourself, so you dont necessarily need a S-CPU
Edited by Elohim - 3/30/12 at 11:50pm
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post #14 of 17
Thread Starter 
Quote:
Originally Posted by Starbomba View Post

Almost any other aftermarket cooler will be better and more silent than the Intel stock one.
If you will be using that computer as a backup, why not settle for an i3? It is quite the awesome chip and runs cooler than an i5. Just pair it with a decent GPU and you're set, or a good mobo and use the IGP.
If you're keen on an i5, and instead of spending a premium on a lower clocked CPU, what you could do is undervolt a regular i5. Heck, that would save energy, money, generate less heat and get higher "stock" speeds. An i3 could go even lower than that though.

I think i5 would be the best bet if it can be underclocked in BIOS. However i am uncertain that whether a Intel itx board will provide the option of clock speed tweaking in its BIOS. i wanted to use Intel because it is the only brand (as far as i am aware of) that provide the option of non-realtek onboard LAN chipset on a ITX. If Intel's ITX board does not support under-clocking, i may need to compromise and get a Asus or GIGA, which support underclock/undervolt........thinking.gif
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post #15 of 17
Quote:
Originally Posted by INGRAMLI View Post

Will small case + passive cooling (saying one of the 70mm class cooler) be able to handle a lower clocked cpu(saying 65W "S" type power efficient ones)?
If so, a 3475S would be more than enough for me, leaving the most demanding task to my existing primary system (my new build is secondary system which is intended to use in my bedroom).headphone.gif

I think the following combination might work for you:-

1) Case: changing from PC-Q07 to PC-V353
As this is a purely passive setup, heat escapes chiefly by convection. As hot air rises, it is best to have a case with more ventilation openings at the case ceiling. Additionally, PC-V353 has more interior volume for the much needed crucial natural air movement.
(Review:- http://www.anandtech.com/show/4866/lian-lis-pcv353-lighter-than-air/1)

2) CPU: changing from i5-3475S to i7-3770T
Going from an 95W i5-2500K (4 Core, 4 Thread, 2.9 Ghz) to a lower power 65W i5-3475S is a good direction.
As you said a 3475S is more than enough, I would suggest to go a step further to use i7 3770T (4 Core. 8 Thread, 2.5GHz) whose TDP is 45W.

3) Passive cooler: use SilverStone NT-01E (five 6mm heatpipes and 88mm tall < 105mm limit of the PC-V353)
This is rated for 65W with a fanless case
http://www.silverstonetek.com/product.php?pid=189&area=en
Edited by windfire - 3/31/12 at 12:43am
post #16 of 17
Thread Starter 
Quote:
Originally Posted by windfire View Post

3) Passive cooler: use SilverStone NT-01E (five 6mm heatpipes and 88mm tall < 105mm limit of the PC-V353)
This is rated for 65W with a fanless case
http://www.silverstonetek.com/product.php?pid=189&area=en

http://www.silverstonetek.com/product.php?pid=189&area=en

From what i read from the above, the height of NT-01E is 109mm, 88mm is the depth ph34r-smiley.gif
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My System
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Intel i5 6600K GA-Z170X-UD5 KVR21N15D8/8 *2 Plextor M3 256GB 
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Pioneer BDR-206MBK NoFan CR-95C Pearl Black Windows 10 Home Edition Eizo Coloredge CG221 
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Filco FKBM104ML/EB Antec HCP-1200 Fractal Design Define R5 Clearly Superior Technologies CST2545W 
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post #17 of 17
Quote:
Originally Posted by INGRAMLI View Post

http://www.silverstonetek.com/product.php?pid=189&area=en
From what i read from the above, the height of NT-01E is 109mm, 88mm is the depth ph34r-smiley.gif

Please excuse my mistake.

Consider SilverStone NT-06E which is 82mm tall and it has, similar to the NT-01E, five 6mm heatpipes. Silverstone recommends a slow rpm fan but I suppose you might get by with the 45W 3770T.

http://www.silverstonetek.com/product.php?pid=190&area=en
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