Quiet HSF for a Sempron 140 AM3 CPU

Informant X

Senior member
Jan 18, 2000
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Hey gang, I got this CPU in my HTPC right now with the stock HSF which isn't too loud, but is louder than I'd like. Can anyone suggest a HSF for this that is nice and quiet? This CPU is also unlocked and is a Dual Core now. So something that will be good, but still get the job done. I would also like to be able to OC a little if possible. Right now it's stock FSB and all, but in the future I might try to crank it up some. Thanks yall!
 

Zap

Elite Member
Oct 13, 1999
22,377
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How much room do you have in your chassis? Rule of thumb is that fans create noise. Bigger fans create less noise than smaller fans at the same CFM because they don't need to run as fast, so you need a big fan running really slow. To hold the big fan, you need a big heatsink. Because the air moves more slowly with a big fan running slow, you need a big heatsink with fins spaced farther apart than typical.

For my quiet builds, I've used Scythe Ninja heatsinks with undervolted fans. I've done that with overclocked quad cores.
 

AsusGuy

Senior member
Dec 9, 2004
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Scythe GentleTyphoons are very great low RPM low noise fans, throw a low RPM version on a HSF and you will be set.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,402
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Scythe GentleTyphoons are very great low RPM low noise fans, throw a low RPM version on a HSF and you will be set.

the s-flex fans are a better choice for blowing into a heat sink. the gentle typhoon and slipsteam units are more for case fan use, iirc. the 'E' fan works very well for even some high wattage processors, you could get away with a 'D' fan for a sempron 140 on a large enough heat sink. s-flex 'D' is a ridiculously quiet fan.
 
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rancherlee

Senior member
Jul 9, 2000
707
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Just slow the stock fan down. The HS/fan that came with my 140 is the same HS/Fan that came with a 440 X3 and a 925 PII x4 I bought. Its a marginal cooler on the PII but it managed to keep the temps under 60*c at stock setting, it shouldn't have no issues keeping an unlocked 140 in check with a slower fan setting or a different fan on it. OR spend a few bucks and get a different cooler. I'd test my 140 for ya with a slower fan speed but I just installed Win7 x64 on that box and X64 doesn't like the second core unlocked, which is funny since it ran XP32 just fine for a month.
 

DrMrLordX

Lifer
Apr 27, 2000
22,972
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the s-flex fans are a better choice for blowing into a heat sink. the gentle typhoon and slipsteam units are more for case fan use, iirc.

Actually, no. The Gentle Typhoons are Nidec designs that produce remarkable static pressure given their noise and fan speeds. They are great for heatsinks and radiators unless you need more raw airflow with the same (or better) static pressure, and at that point, you're looking at Deltas, Sanyo Denkis, and the like.
 

richierich1212

Platinum Member
Jul 5, 2002
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yeah you can't really compare specs on the Gentle Typhoons with other fans. They are designed differently.
 

manimal

Lifer
Mar 30, 2007
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How much room do you have in your chassis? Rule of thumb is that fans create noise. Bigger fans create less noise than smaller fans at the same CFM because they don't need to run as fast, so you need a big fan running really slow. To hold the big fan, you need a big heatsink. Because the air moves more slowly with a big fan running slow, you need a big heatsink with fins spaced farther apart than typical.

For my quiet builds, I've used Scythe Ninja heatsinks with undervolted fans. I've done that with overclocked quad cores.

+ 1 on the the ninjas. I ran one passively for a longtime and it got the job done. With a sempy dual core you should be good if your case can handle a full size ninja or a mini ninja.


When it comes to noise moving your pc away from you is your best bet. Get it far enough that you dont hear the Gentle typhoons and your good to go. Get some long cables from monoprice and your golden. The htpc I have in our master bedroom lives in the walk in closet. Its far enough away that even when the fans spin up full bore we cant hear em. Funny thing is my wife now cant sleep without a sound generator so all I hear all night is the sound of waves crashing against the shore.....at first I had to get up and pee alot...
 

Zap

Elite Member
Oct 13, 1999
22,377
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Funny thing is my wife now cant sleep without a sound generator so all I hear all night is the sound of waves crashing against the shore.....at first I had to get up and pee alot...

LOL. White noise generator?

I like it to be darker than my wife does when we go to sleep. Obviously she gets her way more often than I get mine. :hmm: How the hell does that happen?
 

heyheybooboo

Diamond Member
Jun 29, 2007
6,278
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Hey gang, I got this CPU in my HTPC right now with the stock HSF which isn't too loud, but is louder than I'd like. Can anyone suggest a HSF for this that is nice and quiet? This CPU is also unlocked and is a Dual Core now. So something that will be good, but still get the job done. I would also like to be able to OC a little if possible. Right now it's stock FSB and all, but in the future I might try to crank it up some. Thanks yall!

I suspect you could up the clock to 240MHz, still unlock and under-volt the Sempy ---- with C&Q enabled.

Using Smart Fan you could monitor temps and set the revs as low as possible. Even unlocked your temps are not going too far beyond ambient, anyway (unless you are really unlucky). You could run the Sempy up to 60c+ if you wanted with the fan spinning 100 rpm (Don't think I'd go there --- I don't think my Sempy ever got to 30c at load, unlocked and under-volted -.05v with the fan spinning around 1,000 rpm --- It was an old Opty copper-heatpipe cooler, though)





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ZipSpeed

Golden Member
Aug 13, 2007
1,302
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Might be a bit overkill for a Sempron but I recently replaced the stock HSF on my 1055T with a Cooler Master Hyper 212 Plus. A bit of a pain to install but it's cheap and works well.
 

DrMrLordX

Lifer
Apr 27, 2000
22,972
13,067
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You want overkill? Due to negligence on my part, I will be running a Sempron 140 for awhile with a Noctua nh-d14 doing cooling duty. I can run it fanless to see how it will serve as a passive HSF.

A Scythe Orochi would be better in this capacity, however.