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Advice on Fanless PC



 
 
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  #1  
Old July 8th 09, 12:12 AM posted to comp.sys.ibm.pc.hardware.chips
Carlos Moreno
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Posts: 9
Default Advice on Fanless PC

Hi,

I'm trying to assemble a PC with moderate-to-low computing
power, hoping that I will be able to get something with as close
to ZERO dB of noise as possible.

I thought the Atom processors were designed to use no fan,
but the available MB/CPU combos I've seen sport a big heat
sink with fan. I wonder if I could downclock to a point where
I can simply remove the fan with no risk to fry the CPU?
(actually, would that be the case with a regular intel or AMD
processor?)

Any other advice not involving those 3 kg fanless heat sinks?
(yeah, yeah, I'm going with the hyperbole :-) )

Carlos
--
  #2  
Old July 8th 09, 05:59 PM posted to comp.sys.ibm.pc.hardware.chips
Yousuf Khan
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Posts: 914
Default Advice on Fanless PC

Carlos Moreno wrote:
Hi,

I'm trying to assemble a PC with moderate-to-low computing
power, hoping that I will be able to get something with as close
to ZERO dB of noise as possible.

I thought the Atom processors were designed to use no fan,
but the available MB/CPU combos I've seen sport a big heat
sink with fan. I wonder if I could downclock to a point where
I can simply remove the fan with no risk to fry the CPU?
(actually, would that be the case with a regular intel or AMD
processor?)

Any other advice not involving those 3 kg fanless heat sinks?
(yeah, yeah, I'm going with the hyperbole :-) )

Carlos
--


VIA Nano can be fanless, I believe. And the Nano should be competitive
in performance against Atom.

New Shuttle PC has Via Nano, fanless cooling - The Tech Report
http://techreport.com/discussions.x/16985

Yousuf Khan
  #3  
Old July 8th 09, 06:00 PM posted to comp.sys.ibm.pc.hardware.chips
Yousuf Khan
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Posts: 914
Default Advice on Fanless PC

Yousuf Khan wrote:
VIA Nano can be fanless, I believe. And the Nano should be competitive
in performance against Atom.

New Shuttle PC has Via Nano, fanless cooling - The Tech Report
http://techreport.com/discussions.x/16985

Yousuf Khan


Here's a motherboard for Nano:

VIA EPIA NX12000EG Fanless Nano-Itx Motherboard - iDOTpc International, Inc
http://www.idotpc.com/TheStore/pc/vi...IDCategory=115
  #4  
Old July 8th 09, 06:16 PM posted to comp.sys.ibm.pc.hardware.chips
Oliver Nowak
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Posts: 6
Default Advice on Fanless PC

Yousuf Khan dachte sehr stark über folgendes nach :
snip

VIA Nano can be fanless, I believe. And the Nano should be competitive in
performance against Atom.

New Shuttle PC has Via Nano, fanless cooling - The Tech Report
http://techreport.com/discussions.x/16985

Yousuf Khan


The downside of Shuttle's offerings is that these things aren't
upgradeable. Several years back (in a time when the average
off-the-shelf PC made your ears bleed after a while) - I bought a
Pentium M based Shuttle barebone. Back then, I thought I would never
want to upgrade the 1,5 GHz CPU, but now I regret buying it instead of
a standard (micro)ATX case, especially when running Java IDEs like
Eclipse or Netbeans.

--
O.


  #5  
Old August 27th 09, 10:00 PM posted to comp.sys.ibm.pc.hardware.chips
Dan Lenski
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Posts: 80
Default Advice on Fanless PC

On Tue, 07 Jul 2009 16:12:28 -0700, Carlos Moreno wrote:

I thought the Atom processors were designed to use no fan, but the
available MB/CPU combos I've seen sport a big heat sink with fan. I
wonder if I could downclock to a point where I can simply remove the fan
with no risk to fry the CPU? (actually, would that be the case with a
regular intel or AMD processor?)


I have a regular AMD Athlon(tm) X2 Dual Core BE-2400, on a Gigabyte
MicroATX motherboard with the AMD 780G chipset. This is one of their low-
power 45W processors, runs at 2.2ghz max. It is really energy-sipping...
idles around 21°C with a poorly-attached stock heatsink (no thermal
paste) and stock fan in a small case with two hard drives sitting at
around 40°C. No case fan, either.

I've considered running it fanless, but didn't bother because most of the
time, the fan is running so slow as to be inaudible. But I wouldn't
hesitate to try it fanless, either.

AMD has made a whole series of these low-power dual-core processors
(http://en.wikipedia.org/wiki/
List_of_AMD_Athlon_X2_microprocessors#.22Brisbane. 22_.28G1_.26_G2.2C_65_nm.29)
and you can get a single-core Sempron version for about $40 (http://
http://www.newegg.com/Product/Produc...2E16819103698). Although I
only paid about $45 for mine on sale!

Tom's hardware found that these things use 7-10W when idling, and stay
under 45W when maxed out (http://www.tomshardware.com/reviews/amd-power-
cpu,1925-7.html). So, I think it's quite possible to use a cheap low-
power AMD processor and go fanless.

Any other advice not involving those 3 kg fanless heat sinks? (yeah,
yeah, I'm going with the hyperbole :-) )


If you really don't care about performance at all, Atom or VIA are good
choices, as previously suggested. But those are a lot more performance-
and upgrade-limited than a "real" socketed desktop processor.

Dan
 




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