Quick look@ Akasa 120 Piranha Fan

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Have been running a i2700K @ 4.3 and cooling it with a Corsair H60 with a single 120 fan pushing air through the radiator and out the case.

Fan speed control - PWM.

Swapped Corsairs own for an Apache silent immediately after purchase - much quieter and cooling was more than acceptable.

Saw the 'new' Piranha fan and thought not only do I like the name :D (a fan!! called a Piranha -for...?) it looks as though it might cool better with having a higher static pressure which is, I'm lead to believe , a good thing:)

So bought one ; arrived yesterday and , as better half is out this evening , have just fitted it.

Obviously easy to fit.

Looks like .... a fan.

Blue grey blades rather than green/khaki.

Testing - I did give my existing set up a run before fitting and running the new and found that temperature wise not much , if any, difference at idle and identical at load (IBT freeze test standard 5 runs).

BUT fan speeds were a fair bit different :-

Apache - 722 min and max of 950

Piranha - 600 min and max of 900

After IBT stopped I let it idle for 6 mins to see if there was any difference in the speed that each dropped the heat and in summary the Piranha does appear to work that little bit better (then again it was only 1c (across all 4 cores) - hardly a big deal).
But again fan speed was a fair bit better - Apache was running 777 at end whereas the Piranha was running at 600.

Summary - it cools as well if not better than the Apache. Does run slower so no noise at idle and does not get, imo, loud even under load. (But would observe that I never found the Apache loud :))

Would not read too much into this VERY mini review , hardly a scientific test etc but I hope it's of use.
 
In your fan max speed you say 950 for the apache and 900 for the piranha. Did you not try them at full speed. The apache is rated to run at 1300 rpm and the piranha at 1900 rpm.

Curios to see how the piranha copes at full speed as im thinking of purchasing two for my cpu cooler.
 
As I'm running PWM I leave the speed to the board - Whilst running IBT I also ran speedfan and kept an eye on the fan speed.
The max speed I quoted was the highest recorded.

If I get chance over the weekend I will try to give the piranha a try at full pelt and let you know what I find.
 
Id really appreciate that mate.:) Speed wise, the piranha is similair to the vipers that i had. However, it's static pressure figures are a lot more impressive. Very nice looking fans too.
 
I was considering this fan for my heat sink but looking at the stats would I not be better off with a Super Silent?

Apache Super Silent
- Speed 600 -1300 RPM
- Max airflow 57.53 CFM (97.74 m3/h)
- Sound level 6.9 -16.05 dB(A)
- Max static air pressure 26.40 mm-H2O

Piranha
- Speed: 600-1900 RPM
- Max airflow: 79.13 CFM
- Sound level: 6.4-27.2 dB(A)
- Max static air pressure: 3.04 mm-H2O

Viper R
- Speed: 600-1600 RPM
- Max airflow: 109.55 CFM
- Sound level: 7-21.7 dB(A)
- Max static air pressure: 2.91 mm-H2O
 
I was considering this fan for my heat sink but looking at the stats would I not be better off with a Super Silent?

Apache Super Silent
- Speed 600 -1300 RPM
- Max airflow 57.53 CFM (97.74 m3/h)
- Sound level 6.9 -16.05 dB(A)
- Max static air pressure 26.40 mm-H2O

Piranha
- Speed: 600-1900 RPM
- Max airflow: 79.13 CFM
- Sound level: 6.4-27.2 dB(A)
- Max static air pressure: 3.04 mm-H2O

Viper R
- Speed: 600-1600 RPM
- Max airflow: 109.55 CFM
- Sound level: 7-21.7 dB(A)
- Max static air pressure: 2.91 mm-H2O

Apache Super Silent, saw these but wasn't sure the numbers were correct for the static air pressure, seems like a massive difference compared to all the other fan i have seen!
Can anyone confirm these numbers are correct?
 
Personally i dont trust fan stats, they over-inflate all the numbers too much

I read reviews about their performance on the product (heatsink or rad) which i think is much more real-world than a best-case scenario testing "lab"
 
When i get a pair, ill post up my findings on how they perform on the k2. Theyll be replacing x2 120mm 1500 rpm wingboosts.

Cheers mate, I've currently just got the stock fans on from Alpenfohn. Dunno what fans they are but they do the job well, just had a blast on BF3 @ 4.5GHz and they kept temps around 45, max core was 52.
 
It will, but a bit will be lost over the side of the radiator. Probably not much. On my cooler ive used both 120's and 140's, same speed and cooling was pretty much the same.
 
anything over 1500/1600 rpm becomes loud imo,the apaches will take some beating for quietness,ive always used those fans
 
Agreed, the Akasa vipers were pretty loud at full speed of 1900 rpm. Though they only reached this speed when stress testing. In games they were just about audible, however at idle they were very quiet.
 
The Apache silent fans are indeed 2.64mm H2O static pressure.

http://www.akasa.co.uk/update.php?t...s&type_sub=Auto thermal Sensor&model=AK-FN057

Those Viper R's look impressive on paper stats. <edit> though they are a 140mm fan with 120mm mounting holes... does the airflow still travel over the fins of a typical 120mm radiator?

As I thought 2.64mm H20 not the 26.4mm H20 stated on Overclockers uk web site!
Akasa vipers I use myself and would recomend, a very nice fan witn a good noise to CFM ratio.
 
I have swapped the Piranha for the Apache as my radiator cooling fan. Main reason was that when running PWM (which I do) I found that although, overall, it is probably the better cooler both of them are pretty near silent (probably the Apache shades it in the noise stakes) and both cool well (the Piranha shading this one under load) but for me the speed which PWM runs the fan at tick over cools better with the Apache than the Piranha .- mainly because it runs them at different speeds (the P runs about 150-200rpm slower) and this does mean that at tick over and slightly above the Apache cools better.

I have re-placed my front intake 140mm Xigmatek with the Piranha and it does appear to be doing a good job - one of the main reasons for moving the x on was the fact that at anything other than minimal speed it got noisy - to be fair it was not designed to run at the very slow speed I was/am looking for.

Did give the Piranha a blast at full speed , but not for long , I found it far too noisy!
 
Got two of the piranhas delivered today. Installed on my k2 cooler and gave my system a quick blast with p95 small fft. 15 3570k @4.2ghz.
SDC11369.jpg


Max temps below.

CoreTemp-Scr6.png


At full speed connected to the cpu and cpu opt fan headers on my board, asus fan expert 2 reports them as running at.

1940 rpm
1875 rpm

At idle.

613 rpm
622 rpm.

At idle, theyre very quiet. At full speed, the noise is noticeable. But, it's lower than the noise produced by the previous dual 1500 rpm 120mm Alpenfohn wingboosts. Alpenfohn max temps below for comparison.

CoreTemp-Scr5.png


Not the most scientific testing by any stretch. But im pretty impressed with how theese perform.
 
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