The Well Dressed Megahalems - 65 fans and 112 setups (56k warning) - Page 3

NZXT

DF1202512RFLN

This fan came with the NZXT Beta Evo case.


Image: NZXT 1202512RFLN exhaust


Image: NZXT 1202512RFLN intake

NZXT fan specs

Link : http://rexususa.com/21225-9.html

Size: 120x25mm, 9 blades
Bearing: rifle
Speed: 1300
Airflow: 47 CFM
SPL: 25 dBA
Static Pressure: na
Features: Blue LED’s

Results on the Megahalems:

Speed: 1170 RPM
CPU temp over ambient: 57.5c
SPL: 21 dBA
“Quiet at full volts, with blade sounds; clicks when undervolted through MB.” But then, how often would we undervolt this fan?

Compare this fan with the Silverstone FN121.

In fact, the wholesaler says this fan's manufacturer number is FN-120.
Edited by ehume - 5/29/10 at 9:23am

OKGear

Two fans that came in the grab bag. One has a big label and three wires. The other has a small label and two wires.


Image: OKGear big label – exhaust


Image: OKGear big label – intake


Image: OKGear small label, exhaust view


Image: OKGear small label, intake view

OKGear Big Label fan.

Link: http://www.coolerguys.com/garage29.html

OKGear Big Label (3-wire) fan specs

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: 1200
Airflow: 36 CFM
SPL: 27
Static Pressure: na

Results on the Megahalems:

Speed: 1525 RPM
CPU temp over ambient: 58c
SPL: 28.5 dBA

-----------------------------------------------------------------

Small Label (2-wire) fan.

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: na
Airflow: na
SPL: na
Static Pressure: na
Feature: two wires – no RPM reporter lead

Results on the Megahalems:

Speed: 1710 RPM (estimated by synchronizing another fan with it).
CPU temp over ambient: 55.5c
SPL: 31 dBA
“A hum and a rush of wind; fan got hot.”

A pretty good effort. No wonder it got hot. Actually, this is a fan that barely ran when I first got it. I pulled the label open and gave it a drop of oil. The results you see above. If I feel like using it again I’ll put in some more oil.
Edited by ehume - 5/4/10 at 5:12pm

Papst – or EBM Papst

4412FML


Image: Papst 4412FML exhaust


Image: Papst 4412FML intake

Link: http://www.ebmpapst.us/allpdfs/4400F.PDF

Papst 4412FML Specs

Size: 119x25mm, 7 blades
Bearing: ball
Speed: na
Airflow: 67.1 CFM
SPL: 32 dBA
Static Pressure: na
Feature: two wires – no RPM reporter lead

Results on the Megahalems:

Speed: 1785 RPM (estimated by synchronizing another fan with it).
CPU temp over ambient: 54c
SPL: 30.5 dBA
“Clatters.”

Nasty clicks at low voltages.

----------------------------------

Papst 4312 MS

I wanted to test five-bladed fans.


Image: Papst 4312 MS exhaust


Image: Papst 4312 MS intake. Notice that the blades rotate clockwise. Papst has at least one other series of fans that rotate clockwise.

Link: http://www.ebmpapst.us/allpdfs/4300.PDF

Papst 4312 MS Specs

Size: 119x32mm, 5 blades
Bearing: ball
Speed: na
Airflow: 82.4 CFM
SPL: 39 dBA
Static Pressure: na
Features:

Results on the Megahalems:

Speed: 2190 RPM
CPU temp over ambient: 53.5c
SPL: 38 dBA
“Growls.”

-------------------------------------------

EBM W2G110-AF45-19

Again, I wanted to test five-bladed fans. This fan looks to be an EBM model that predated Papst’s acquisition of EBM.


Image: EBM W2G110-AF45-16 exhaust


Image: EBM W2G110-AF45-16 intake


Image: EBM W2G110-AF45-16 label

Link: http://www.performance-pcs.com/catal...ducts_id=24236


EBM W2G110-AF45-19 Specs

Size: 120x38mm, 5 blades
Bearing: ball
Speed: na
Airflow: 105.9 CFM
SPL: 45 dBA
Static Pressure: na
Features: metal fan; third wire is not an RPM reporter lead

Results on the Megahalems:

Speed: na (no 5-bladed fan fast enough to synchronize with it)
CPU temp over ambient: 50c
SPL: 45.5 dBA

Nasty clicks at low voltages.
Edited by ehume - 5/19/10 at 5:08pm

Rosewill

Rosewill RFX-120BL

Rosewill appears to be the house brand for New Egg. This fan is available for $8 with a fan controller. Unfortunately the fan controller can make some fans sound bad when undervolted. If you want the fan, just get it. This one has LED’s in a very pretty sky blue.


Image: Rosewill RFX-120BL - exhaust view


Image: Rosewill RFX-120BL - intake view

Link:
http://www.newegg.com/Product/Produc...&Tpk=RFX-120BL

Rosewill RFX-120BL Specs

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 1200 - 2200 RPM
Airflow: 43.5 - 87.5 CFM
SPL: 23.5 - 38.15 dBA
Static Pressure: na
Features: Blue LED’s; fan controller

Results on the Megahalems:

Speed: 1950 RPM
CPU temp over ambient: 54c
SPL: 33.5 dBA

Not only pretty, but sings at full speed. When I did my 5-volt comparisons, my comment was “Sweet sound” at 24.3 dBA.

----------------------------------------

Rosewill RFA-120-BL

Not just a sleeve version of the RFX-120’s. This one has blue LED’s. I don’t like the color as much as the LED’s on the RFX.


Image: Rosewill RFA-120BL exhaust view


Image: Rosewill RFA-120BL intake view

Link: http://www.newegg.com/Product/Produc...82E16835200049


Rosewill RFA-120BL Specs

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: 2000 RPM
Airflow: 74.48 CFM
SPL: 29.28 dBA
Static Pressure: na
Features: Blue LED’s

Results on the Megahalems:

Speed: 1700 RPM
CPU temp over ambient: 55c
SPL: 30 dBA
“Hum. Different colored LED’s.”
Edited by ehume - 5/2/10 at 8:17pm

Sanyo Denki

NOTE - Most San Ace fans are available only from industrial suppliers, and ship with bare wires. If you are not comfortable soldering wires or if you do not have tools for crimping pins, it would be best for you to buy San Ace fans only from regular computer parts retailers.

120x38mm fans

A note on model number: Start with 9G1212M101. The 9 represents a fan series. The G tells you it is a standard fan. The first 12 is the frame size in cm. The second 12 is the voltage. The L means Low speed, the M means Medium speed, the F is for Fast, the H is for High, the E may be for Extra High; there are also G, J and S speeds. The 1 tells you the fan is 38mm thick. I don’t know what the zero stands for. The 1 means there is a third wire for reporting RPM. The absence of a second -1 tells you that this fan has “ribs,†“closed corners,†or “installation tunnels.â€


Image: The edges of three San Ace 9G's


Image: Three San Ace 9G's

The left fan is a 9G1212H101 that has had its ribs cut. The center fan is a 9G1212E1011 that was manufactured without ribs. The right fan is a 9G1212G101 with ribs intact.

-----------------------------------------------

San Ace 9G1212M101

This is the little brother of the famous San Ace 9G1212H1011.


Image: San Ace 9G1212M101, intake & exhaust views

This is a 9G1212M101, with a 9G1212H101 to show what the intake side looks like.

Link: http://db.sanyodenki.co.jp/product_d...master_id=2464

San Ace 9G1212M101 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 1950 RPM
Airflow: 74 CFM
SPL: 32 dBA
Static Pressure: 4.0 mm H2O

Results on the Megahalem:

Speed: 1960 RPM
CPU temp over ambient: 52c
SPL: 35.5 dBA
“Growls.â€

Results on the Megahalem at 5v:

Speed: 810 RPM
CPU temp over ambient: fail
SPL: 16 dBA
“Quiet growling.â€

---------------------------------------

San Ace 9G1212H101

The famous one. The 9G1212H1011 differs from this one in that it does not have ribs, while the 9G1212H101 does. It’s easy enough to cut the ribs off, but that is not necessary with the Megahalems. I bought two of these.


Image: San Ace 9G1212H101, intake & exhaust views


Image: San Ace 9G1212H101, exhaust view


Image: San Ace 9G1212H101, intake view


Image: Megahalems and San Ace 9G1212H101 fans

Link: http://db.sanyodenki.co.jp/product_d...master_id=2477

US Vendor-1
US Vendor-2
UK Vendor

NOTE: I strongly recommend you get an -H1011 and not an -H101. I have given you links to vendors who will sell you fans with plugs and sleeving. I did all that myself, But buying the supplies requires care, and assembling it all requires tools.

San Ace 9G1212H101 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 2600 RPM
Airflow: 99 CFM
SPL: 39 dBA
Static Pressure: 6.6 mm H2O

Results on the Megahalems 12v (average):

Speed: 2500 RPM
CPU temp over ambient: 50c
SPL: 40 dBA

The important thing here is that this was the first fan to get down to 50c without sounding like a banshee.

Results on the Megahalems 5v:

Speed: 1100 RPM
CPU temp over ambient: 57c
SPL: 22.5 dBA
“Quiet growl.â€

Results on the Megahalems 12v, tandem (two fans):

Speed: 2540 RPM (average)
CPU temp over ambient: 49c
SPL: 44.5 dBA

Results on the Megahalems 5v, tandem (two fans):

Speed: 1100 RPM (average)
CPU temp over ambient: 56c
SPL: 22.5 dBA
“Like an old-fashioned power station, but quiet.â€

---------------------------------------

San Ace 9G1212E1011

Should be a better fan, right? The 3000-RPM-class fans by other manufacturers really crank. This one is ribless, BTW.


Image: San Ace 9G1212E1011, exhaust view


Image: San Ace 9G1212E1011, intake view

Link: http://db.sanyodenki.co.jp/product_d...master_id=2449

San Ace 9G1212E1011 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 3100 RPM
Airflow: 118 CFM
SPL: 46 dBA
Static Pressure: 10.2 mm H2O

Results on the Megahalems 12v (average):

Speed: 2850 RPM
CPU temp over ambient: 49.5c
SPL: 44 dBA

A half degree centigrade better than a 9G1212H101, at a cost of 4 dBA.

Results on the Megahalems 5v:

Speed: 1250 RPM
CPU temp over ambient: 55.5c
SPL: 23.5 dBA
“Quiet growl.â€

-------------------------------------

San Ace 9G1212G101


Image: San Ace 9G1212G101, exhaust view


Image: San Ace 9G1212G101, intake view

Link: http://db.sanyodenki.co.jp/product_d...master_id=2466

San Ace 9G1212G101 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 3600 RPM
Airflow: 137 CFM
SPL: 49 dBA
Static Pressure: 13.8 mm H2O


Results on the Megahalems 12v (average):

Speed: 3400 RPM
CPU temp over ambient: 48.5c
SPL: 45.5 dBA

A whole degree centigrade better than a 9G1212H101, at a cost of 9 dBA.


Results on the Megahalems 5v:

Speed: 1600 RPM
CPU temp over ambient: 53.5c
SPL: 27 dBA
“Quiet growl.â€

--------------------------------------------

In conclusion, the 9G1212H1011 seems to be the apex of the San Ace 38mm fans. Faster fans just give you more noise and not much better cooling. I wonder if various blade shapes have optimal RPM’s?
-------------------------------------

120x25mm “Silent†fans.

San Ace 9S1212L401

This is one of Sanyo Denki’s “Silent†San Aces. The 4 in -401 stands for a 25mm thick fan.


Image: San Ace 9S1212L401, intake & exhaust views

Actually, this is a 9S1212F401 posing as a 9S1212L401 showing its intake side. On the exhaust side is the 9S1212L401.

Link: http://db.sanyodenki.co.jp/product_d...master_id=2018

San Ace 9S1212L401 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 1500 RPM
Airflow: 48.1 CFM
SPL: 17 dBA
Static Pressure: 1.5 mm H2O

Results on the Megahalems 12v (average):

Speed: 1420 RPM
CPU temp over ambient: 55.5c
SPL: 19.5 dBA
“Soft hum.â€

-------------------------------------

San Ace 9S1212F401

This is one of Sanyo Denki’s “Silent†San Aces. I really like this fan. I like it so much that when the 9S1212H401 became available, I bought two of those.


Image: San Ace 9S1212F401, intake & exhaust views

Actually, this is a 9S1212L401 posing as a 9S1212F401, showing its intake side. On the exhaust side is the 9S1212F401.

Link: http://db.sanyodenki.co.jp/product_d...master_id=2016

San Ace 9S1212F401 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 2200 RPM
Airflow: 70.6 CFM
SPL: 30 dBA
Static Pressure: 3 mm H2O
Note: There is a 9S1212M401 with specs between the -L and the -F.

Results on the Megahalems 12v (average):

Speed: 2050 RPM
CPU temp over ambient: 53.5c
SPL: 30 dBA
“Soft moan.â€

-------------------------------------

San Ace 9S1212H401

This “Silent†San Ace is not in Sanyo Denki’s online catalog. But I bought two of them. They seemed like just the right fan: after listening to how sweetly the slower 9S fans sang, I thought this fan might have a sweet sound and be able to get my CPU down to 50c over ambient.


Image: San Ace 9S1212H401, intake & exhaust views

Here are two genuine 9S1212H401’s, showing intake and exhaust sides.

Links: http://www.newark.com/pdfs/datasheet...1212H401_A.pdf
http://www.newark.com/sanyo-denki/9s...fan/dp/04R7277
A link direct from Sanyo Denki: http://db.sanyodenki.co.jp/product_d...1270530583.pdf


San Ace 9S1212H401 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 2700 RPM
Airflow: 86.5 CFM
SPL: 36 dBA
Static Pressure: 4.5 mm H2O (estimated from graph)

Results on the Megahalems 12v (average):

Speed: 2430 RPM (average)
CPU temp over ambient: 52.5c
SPL: 34 dBA
“Sings.â€

Results on the Megahalems 5v:

Speed: 1365 RPM
CPU temp over ambient: 56c
SPL: 20 dBA

Results on the Megahalems 12v tandem mount (two fans):

Speed: 2440 RPM (average)
CPU temp over ambient: 51c
SPL: 37.5 dBA
“They quietly sing; very pleasant.â€

This is comparable to a single San Ace 9G1212H101, but quieter.

Results on the Megahalems 5v tandem mount (two fans):

Speed: 1410 RPM (average)
CPU temp over ambient: 53.5c
SPL: 23.5 dBA
“Very close to having two -L401's, except there is a high-pitched whine the -L lacks.†I wasn’t sure where it was from.

-------------------------------------------

Clearly Sanyo Denki knows how to assemble a fan that does not click. Sanyo Denki offers a line of 9G1212x401 fans analogous to the 9G1212x101 series. Want to bet those fans click at low voltage? I wish they made a 9S1212H1011. That would be a nearly perfect fan.

----------------------------------------

San Ace PWM fan

San Ace 9G1212P4G03

I got three of these:


Image: San Ace 9G1212P4G03, intake & exhaust views

Why three? Because I loved the first one so much I decided I wanted to try three of them on a Noctua NH-D14 – a heatsink that can accommodate three fans.

San Ace 9G1212P4G03: The P stands for PWM. The 4 stands for a 25mm thick frame. The speed class letter – G – is moved over one place on PWM fans. I am not sure what the -3 stands for.

The one nice thing about PWM fans is that you can power them from Molex. Since these fans can draw up to 0.9 Amp and a MB header will let you draw only up to 1 Amp, you clearly need the extra current from somewhere. Akasa, for example, makes a PWM harness that controls up to three fans from a single PWM signal, yet draws its power from Molex so the MB header is not overdrawn.

Links: http://www.newark.com/pdfs/datasheet...212P4G03_A.pdf
http://www.newark.com/sanyo-denki/9g...fan/dp/03P9398

San Ace 9G1212P4G03 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 1000 to 4100 RPM (0-100% PWM duty cycle)
Airflow: 32 to 130 CFM (0-100% PWM duty cycle, estimated from graph)
SPL: 18 to 51 dBA (0-100% PWM duty cycle)
Static Pressure: 1.0 to 12.2 mm H2O (0-100% PWM duty cycle, estimated from graph)
Note: The distributor lists max airflow as 129.94 CFM.
Note: Each fan draws up to 0.9 Amp.

Results on the Megahalems 12v (average of all three fans):

Speed: 3900 RPM
CPU temp over ambient: 49.5c
SPL: 48 dBA

Results on the Megahalems 12v, tandem mount (two fans):

RPM: 3990 (average)
CPU temp over ambient: 48c
SPL: 52 dBA
The input fan was on the MB header, the exhaust fan on Molex.

Results on the Megahalems 5v:

Speed: 1975 RPM (how’s that for 5 volts!)
CPU temp over ambient: 53c
SPL: 30.5 dBA

This would be a great fan all by itself, and only 5 volts. You could run it from USB.

Results on the Megahalems 5v, tandem mount (two fans):

Speed: 2030 RPM (average)
CPU temp over ambient: 52c
SPL: 35.5 dBA
Edited by ehume - 11/16/10 at 4:56pm

Scythe

Their fans come in pretty boxes. They have adapters that allow you to power the fans from Molex and still report the RPM’s to the MB. They even sell PWM fans. Even if they don’t make their own fans, they seem to know what they’re doing.

Scythe 120x25mm fans

AD1212DS-A73GL(6TCL3)

This fan used to equip some of Scythe’s heatsinks like the Ninja Plus and other coolers. It doesn’t seem to be available as a separate purchasable item. This came to me in my grab bag.


Image: Scythe AD1212DS-A73GL(6TCL3) exhaust view


Image: Scythe AD1212DS-A73GL(6TCL3) intake view

Specs:

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: 1200 RPM
Airflow: 46 CFM
SPL: 23.5 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 1200 RPM
CPU temp over ambient: 56c
SPL: 23.5 dBA
(bizarre coincidence, eh?)

------------------------------------------------------

Scythe Slip Stream, Kaze Jyuni

Slip Stream is a series of five fans: 500, 800, 1200, 1600 and 1900 RPM. I tested the three stronger fans.


Image: Scythe Slipstream 1200 intake and exhaust views


Image: Scythe Slipstream 1600 intake and exhaust views


Image: Scythe Slipstream 1900 exhaust view


Image: Scythe Slipstream 1900 intake view


Image: Scythe Slipstream 1900 blade angle

These fans are case fans, with a relatively large CFM in free air, but not much static pressure. That means that when these fans are placed against an obstruction like a radiator they are unable to push much air through. But is the Megahalems like a radiator?

Link: http://www.scythe-usa.com/product/ac...sl_detail.html


Scythe Slip Stream 1200 Specs:

Size: 120x25mm, 9 blades
Bearing: sleeve
Speed: 1200 RPM
Airflow: 68.54 CFM
SPL: 24 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1325 RPM (average)
CPU temp over ambient: 56c
SPL: 26 dBA
“Just the wind!” a great sounding fan.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1220 RPM (average)
CPU temp over ambient: 56c
SPL: 26.5 dBA

-----------------------------------------------------------

Scythe Slip Stream 1600 Specs:

Size: 120x25mm, 9 blades
Bearing: sleeve
Speed: 1600 RPM
Airflow: 88.11 CFM
SPL: 33 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1750 RPM (average)
CPU temp over ambient: 54.5c
SPL: 34.5 dBA
“Wind noise; like wind in trees.” Another great sounding fan.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1220 RPM (average)
CPU temp over ambient: 52.5c
SPL: 35 dBA
“Some whine, but unobjectionable.”

---------------------------------------------------------

Scythe Slip Stream 1900 Specs:

Size: 120x25mm, 9 blades
Bearing: sleeve
Speed: 1900 RPM
Airflow: 110.31 CFM
SPL: 37 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v (fan #1):

Speed: 2050 RPM (average)
CPU temp over ambient: 53c
SPL: 37.5 dBA
“Wind noise only; that's all.”

Results on the Megahalems 12v (fan #2):

Speed: 1810 RPM
CPU temp over ambient: 54c
SPL: 33.5 dBA
“Wind noise only; that's all.”

It’s almost like they’re different fans.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1890 RPM (average)
CPU temp over ambient: 51c
SPL: 39.5 dBA
“Wind and high hum.”

A pair that essentially replicates a single San Ace -H101.


Results on the Megahalems 5v, tandem mount (two fans):

Speed: 985 RPM (average)
CPU temp over ambient: fail
SPL: 22 dBA

Oh, well.
Edited by ehume - 5/2/10 at 8:52pm

Scythe Ultra Kaze fans

The Ultra Kaze comes in 1000, 2000 and 3000 RPM variants. I typically abbreviate them as UK1K, UK2K and UK3K.

Link: http://www.scythe-usa.com/product/ac...38_detail.html


Image: Scythe Ultra Kaze 1000, exhaust view


Image: Scythe Ultra Kaze 1000, intake view

Scythe Ultra Kaze 1000 Specs

Size: 120x38mm, 7 blades
Bearing: sleeve
Speed: 1000 RPM
Airflow: 44.44 CFM
SPL: 19.81 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 930 RPM
CPU temp over ambient: fail
SPL: 17.5 dBA
“Growls.” But quietly.

---------------------------------------------

Scythe Ultra Kaze 2000


Image: Scythe Ultra Kaze 2000, exhaust view


Image: Scythe Ultra Kaze 2000, intake view

Scythe Ultra Kaze 2000 Specs

Size: 120x38mm, 7 blades
Bearing: sleeve
Speed: 2000 RPM
Airflow: 87.63 CFM
SPL: 32.91 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 2000 RPM
CPU temp over ambient: 53c
SPL: 34.5 dBA
“Ordinary hard working fan sound.”

Results on the Megahalems 5v:

Speed: 1075 RPM
CPU temp over ambient: 60c
SPL: 20.5 dBA
“Quiet growl.”

-------------------------------------------

Scythe Ultra Kaze 3000


Image: Scythe Ultra Kaze 3000 intake and exhaust views


Image: Scythe Ultra Kaze 3000 x 2 on Megahalems

Scythe Ultra Kaze 3000 specs

Size: 120x38mm, 7 blades
Bearing: sleeve
Speed: 3000 RPM
Airflow: 133.60 CFM
SPL: 45.90 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 2840 RPM (average)
CPU temp over ambient: 50c
SPL: 43.5 dBA
“Whine and wind.”

It replicates the results of the San Ace 9G1212H101, but it is much noisier subjectively than it is on the SPL meter.

Results on the Megahalems 5v:

Speed: 1285 RPM (average)
CPU temp over ambient: 57c
SPL: 25 dBA
“Quiet growl.”

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 2845 RPM (average)
CPU temp over ambient: 49c
SPL: 46.5 dBA
“At 0.6 watts each, should not put two on a mb header.”

Results on the Megahalems 5v, tandem mount (two fans):

Speed: 1255 RPM (average)
CPU temp over ambient: 55c
SPL: 28 dBA
“Growls.”
Edited by ehume - 5/2/10 at 9:03pm

Scythe 140x25mm fans

Scythe Kaze Maru

Scythe makes a series of 140mm fans that are similar to the Noctua P14 in one regard: they have screw holes in the same position as 120mm fans. That works very well in some circumstances. For example:


Image: 140mm fans on NZXT Beta Evo side panel

Kaze Maru may mean “ship of winds.†These fans come in three flavors: 500 RPM, 1200 RPM and 1900 RPM.

Link: http://www.scythe-usa.com/product/ac...12_detail.html


Image: Scythe Kaze Maru 500 exhaust view


Image: Scythe Kaze Maru 500 intake view

Scythe Kaze Maru 500 Specs

Size: 140x25mm, 11 blades
Bearing: sleeve
Speed: 500 RPM
Airflow: 29.39 CFM
SPL: 10.80 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems:

Not tested. It would fail. I use this fan as an intake on my side panel. This is one of the two fans that are closest to me, and the one fan with nothing between it and me but a half meter of air. It is quite quiet.

---------------------------------------------------

Scythe Kaze Maru 1200


Image: Scythe Kaze Maru 1200 exhaust view


Image: Scythe Kaze Maru 1200 intake view

Scythe Kaze Maru 1200 Specs

Size: 140x25mm, 11 blades
Bearing: sleeve
Speed: 1200 RPM
Airflow: 61.30 CFM
SPL: 26.58 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1115 RPM (average)
CPU temp over ambient: 58c
SPL: 26 dBA
“Low thrum; an easy fan to love.â€

--------------------------------------------

Scythe Kaze Maru 1900


Image: Scythe Kaze Maru 1900 intake and exhaust views

Scythe Kaze Maru 1900 Specs

Size: 140x25mm, 11 blades
Bearing: sleeve
Speed: 1900 RPM
Airflow: 104.54 CFM
SPL: 41.13 dBA (over 40 dB isn’t quiet)
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1820 RPM
CPU temp over ambient: 54c
SPL: 37.5 dBA
“Wind noise and machine noise; not terrible.â€

But note the big jump in SPL. You don’t hear all of it, since much of it is white noise. Still, it ain’t all that quiet. Not like the 1200.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1820 RPM
CPU temp over ambient: 52c
SPL: 40 dBA
“Big wind noise and small machine noise; ship of winds, indeed.â€

------------------------------------------------

Scythe Kaze Maru 2

The KM2 is an evolution of the KM design. Read about it here:

Link: http://www.performance-pcs.com/catal...ducts_id=27090


Image: Scythe Kaze Maru 2 1700 exhaust view


Image: Scythe Kaze Maru 2 1700 intake view


Its English name on the box is Slip Stream 140. Does it deserve the name?


Image: Scythe Slipstream and Kaze Maru 2


Image: Scythe Kaze Maru and Kaze Maru 2


Image: Scythe S-Flex and Kaze Maru 2


Image: Noctua P14 and Scythe KM2-1700


Scythe Kaze Maru 2 1700 Specs

Size: 140x25mm, 9 blades
Bearing: sleeve
Speed: 1700 RPM
Airflow: 92.4 CFM
SPL: 36.4 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1650 RPM
CPU temp over ambient: 52c
SPL: 32 dBA
“Wind noise only; that's all; earns its ‘Slipstream 140’.â€

Same cooling as the Kaze Maru 1900, and much lower noise. A fabulous fan. Clearly Scythe knew what they were about here. I can’t wait to try it on the Noctua NH-D14.

---------------------

Edit:

Even though they did not figure into the Megahlems testing, I will list the specs of the other KM2 fans:

500 rpm, 9.6 dBA, 27.2 cfm
800 rpm, 14.3 dBA, 43.5cfm
1200rpm, 23.2dBA, 65.2cfm
Edited by ehume - 8/6/11 at 6:54pm

Scythe/Nidec-Servo

Scythe Gentle Typhoon

The GT’s are remarkable fans. Scythe markets five: 500, 800, 1150, 1450 and 1850 RPM:

Link: http://www.scythe-usa.com/product/ac...ap_detail.html

But these are only the GT’s “for low speed applications.” Servo only makes them in 1450, 1850 . . . and 2150 RPM.

Link: http://www.japanservo.co.jp/digital/...pdf/D1225C.pdf

Don’t you wish Scythe would market that 2150 RPM fan? And then there are the GT’s “for high speed applications.” Those come with a “unique rectifier ring” that reinforces the blades at the 3000, 4250 and 5400 RPM those fans operate at.

Link: http://catalog.nidec-servo.com/produ...Chi-letter.pdf

Santa, I’d like that 3000 RPM fan. With PWM, if possible.

I have the 800, 1150, 1450 and 1850 RPM fans. When I put on them on fan controllers and synchronized them, they sounded exactly the same and put out the same amount of wind. They feel like the same fan with different resistors.

The 800 RPM fan is so quiet and gentle that I use it for my front-mounted intake fan. This is the closest fan to me, so it has to be quiet yet pull in a useful amount of air. But I did not test it with the Megahalems. Why?

Gentle Typhoon Specs (from the box)

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 800 RPM
Airflow: 28.2 CFM
SPL: 9 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

It would fail a test at 4GHz, so I left it snuggled into its intake niche, held by some flaming violet Nexus silicon fan holders.

BTW – GT's have closed corners. If you want to get inside the flanges you must cut away the “ribs:”


Image: Gentle Typhoon 1850 before and after

-----------------------------------------------------

On to the GT 1150:


Image: Gentle Typhoon 1150 exhaust view


Image: Gentle Typhoon 1150 intake view

Gentle Typhoon 1150 Specs (from the box)

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 1150 RPM
Airflow: 37.1 CFM
SPL: 16 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1146 RPM
CPU temp over ambient: 59c
SPL: 17.5 dBA

------------------------------------------------------------

GT 1450:


Image: Gentle Typhoon 1450 intake and exhaust views

Gentle Typhoon 1450 Specs

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 1450 RPM
Airflow: 50 CFM (from the website) 45.9 (from the box) (Nidec says 46 CFM for theirs)
SPL: 21 dBA, box and website (Nidec says 19 dBA for theirs)
Static Pressure: 1.3 mmH2O (from Nidec)
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1340 RPM
CPU temp over ambient: 56.5c
SPL: 20 dBA

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1380 RPM (average)
CPU temp over ambient: 54.5c
SPL: 21.5 dBA

------------------------------------------

GT 1850


Image: Gentle Typhoon 1850 intake and exhaust views

Gentle Typhoon 1850 Specs

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 1850 RPM
Airflow: 57.7 CFM from the website, 58.3 CFM from the box (Nidec says 58 CFM for theirs)
SPL: 28 dBA box and website (Nidec says 30 dBA for theirs)
Static Pressure: 2.9 mmH2O (from Nidec)
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1760 RPM (average)
CPU temp over ambient: 54.5c
SPL: 26.5 dBA

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1775 RPM (average)
CPU temp over ambient: 53.5c
SPL: 29 dBA

No clicking on any of these fans at any voltage.
Edited by ehume - 5/2/10 at 9:29pm

Silverstone FN121

I read a number of comments about what a good fan this is, so I got one.

Link: http://www.silverstonetek.com/produc...fn121&area=usa


Image: Silverstone FN-121 exhaust view

What an annoying fan! Note those Molex connectors. Then note that the three-pin connector only has a yellow RPM reporting line. Yes, this fan only gets its power through Molex. If you want to power it through a mb header you will have to get an adapter. I guess this is a big hint that Silverstone considers this to be a case fan only.

Also note that this fan is apparently made by Everflow.


Image: Silverstone FN-121 intake view

Comparing this fan with the NZXT case fan, it appears that though the frames differ, the blades are the same. Are the results comparable?

Specs

Size: 120x25mm, 9 blades
Bearing: na
Speed: 1200 RPM
Airflow: 53.24 CFM
SPL: 26.6 dBA
Static Pressure: 0.91 mmH2O
Feature:

Results on the Megahalems 12v:

Speed: 1185 RPM (average)
CPU temp over ambient: 57c
SPL: 25 dBA
“Quiet hum.”
Edited by ehume - 5/2/10 at 9:32pm