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Good Heatsinks with LOW Airflow

DarkRogue

DarkRogue

Golden Member
Hello,

I've been reading around and doing research for good heatsinks to use with the E8400 being overclocked to 3.6GHz.

My budget is fairly midrange, about $40-50 or so for the heatsink, and it seemed top contenders would be the Cooler Master Hyper212 or the Thermalright Ultima90. However, I ran into a bit of a snag. Every review with these heatsinks have the fans running full blast.
I'm trying to quiet my PC down a bit so that means undervolting the fan, which means less airflow, which for some heatsinks, degrade performance like crazy.

Someone recommended the Scythe Ninja which supposedly does well with low airflow, but at $70 it seems a tad on the expensive side.

Does anyone know of any alternatives for this?

Thanks in advance.
 
arctic silver 5, stock heatsink, 3.6GHZ, 55 degrees C under heavy load i.e. F@H or crysis

(62 peak is the max I've seen during 20hr prime95 stress tests) no problems, no noise and all you have to buy is the AS5.

I didn't have to lap it either... it's doing just fine by itself.
 
I just put together a system with the Xygmatek HDT-S1283 CPU heatsink/fan, priced less than $40 at Newegg. That price includes the fan.

Per Speedfan, running a 5000 Black at 3.12GHz, it idles at 21C and max temp with Orthos is 40C.

I'm running it PWM-controlled. Speedfan reads 1178 RPM fan-speed (inaudible) at 21C as I type this. Max fan speed at 100% load is about 2200 RPM. The included fan

Mounting may be a problem: For my board, the heatsink must face either the NB or PS, rather than more efficiently pushing air directly toward the rear vent.

Read the review. A lot of performance for the price!

Hope this helps!

 
the large gaps between the fins on the ninja work pretty well with low airfow, the best fan for the ninja is supposedly a 120mm with 1000-1300rpm. (nexus/yate loon)
 
Whoops, I forgot to set subscription to this thread.. was wondering why I wasn't getting informed of replies lol.

Anyway, I took another look at those links and it seems the one I found was some sort of special anniversary edition?
The regular Rev B looks to be just under $40 which is well within my budget, and I read the reviews and it sounds like a winner.
I'll consider that Xigmatek one though, it sounds promising too, although have you tried any fan speeds slower than 1k?

If I get either I'll probably pair it with a Scythe or Nexus fan undervolted to.. I've no idea yet. What's a Yate Loon?
 
Get a Ninja to run passive or with a low RPM fan attached to it. It has very widely spaced fins, which means less pressure needed to get air through it. Its massive number of pipes and surface area make it run well on very low airflow.
 
Yes, I'm thinking of getting the Ninja, and I'm aware it comes with a Scythe fan, but I've no idea how good/quiet it is.
 
That's a little odd, I just checked the Scythe products page and the fan it lists as shipping with the Ninja (although unnamed) has specs that match the S-Flex medium speed more closely than the Slipstream. Unless they haven't gotten around to updating their web site with this change yet..
 
My latest aluminum-finned Ninja from Jabtech, came with a 1200rpm SlipStream. Some other places ship versions with the 800rpm SS.

Nothing else beats the Ninja thus far, with a low airflow fan......many people run them completely passive using only the case fans for airflow, including me. Project link.
 
Well, how can you tell what kind of fan ships with the Ninja? From the pics I've seen, the fan comes unmarked - only comes with a big logo in the middle.
I don't think it matters too much, but I thought the s-flex was a better fan than the slipstream, unless I've misread or something. Isn't the slipstream louder than the medium-speed s-flex? How well does it tolerate undervolting?
 
The Ninja's fan is now the SlipStream, which is very good and very quiet, especially when undervolted. They changed the fan that came with it a few months ago iirc.
 
Originally posted by: Sheninat0r
Get a Ninja to run passive or with a low RPM fan attached to it. It has very widely spaced fins, which means less pressure needed to get air through it. Its massive number of pipes and surface area make it run well on very low airflow.
Click to expand...

Not true.......sorry that is a urban myth.....
The air is only impeded if something is clogging the fins......sorry to tell you!!

 
Originally posted by: DarkRogue
Well, how can you tell what kind of fan ships with the Ninja? From the pics I've seen, the fan comes unmarked - only comes with a big logo in the middle.
I don't think it matters too much, but I thought the s-flex was a better fan than the slipstream, unless I've misread or something. Isn't the slipstream louder than the medium-speed s-flex? How well does it tolerate undervolting?
Click to expand...

You can't really say the slipstrem is a worse fan. There are 5 slipstreams from 500rpm all the way to 1900rpm. The medium s-flex(E) is rated at 49cfm at 20db whereas the 800rpm slipstream is rated at 40cfm at 10.7db and the 1200rpm is rated at 68.5cfm at 24dba. Quite frankly the 1200 may be louder(2x max) but, it's still well below the 30db barrier that's considered quiet and moves almost 40% more air and the 800rpm moves about 20% less air but, at 9.3db less it will be about 3x quieter. I love the slipstream fans personally, I use them quite regularly all the way up to the 1600rpm fans at 12v and the 1900 at 7v or 9v. I don't really run the 1900 at 12v very often. The only real disadvantage with the slipstreams is lower static pressure and with a heatsink like the ninja that really doesn't matter that much.
 
Originally posted by: JEDIYoda

Not true.......sorry that is a urban myth.....
The air is only impeded if something is clogging the fins......sorry to tell you!!
Click to expand...

Care to explain this with a few of Mr. Bernoulli's equations? Higher fin density will produce higher static pressure. A simple plot of a fan will show that airflow only goes downward from free air performance.
 
Originally posted by: Rubycon
Originally posted by: JEDIYoda

Not true.......sorry that is a urban myth.....
The air is only impeded if something is clogging the fins......sorry to tell you!!
Click to expand...

Care to explain this with a few of Mr. Bernoulli's equations? Higher fin density will produce higher static pressure. A simple plot of a fan will show that airflow only goes downward from free air performance.
Click to expand...

+1
 
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