High quality 120mm fans with Blue LED?

[PUN]

Originally posted by: zagood
Same dubious claims, same responses:
http://www.xtremesystems.org/f...howthread.php?t=194566

Like I said before, this fan you're loving so much isn't a bad fan, especially as far as LED fans go. The ratings just aren't what they say they are.

thanks for the link
As the OP had stated on that post he swears by the cfm and dba rating.
I find this to be true with 2 of mine. I believe the CFM is 69.69 instead of 90cfm @19dba.
dba is to be around mid 20s if 90cfm is desired.

 

[PUN]

Originally posted by: Rifterut
Panaflow or Delta FTW!!! Seriously!!! if you want fans that will last 7-10 years plus then thats the way to go. They are not cheap, they are not quiet, but do have great static pressure and move alot of air. Also they work fine with a fan controller if you want to keep noise down. If you dont want to screw around with a fan controller or spend that much cash and If you are going for quiet sound over air movement then get some cheap Yates with sleeve bearings and replace every 2 years. I do not believe that CM claim of 19db but im going to buy one and check it out.

Panaflo and delta fans move some serious air but they are way too loud for my taste...and as you had suggested, i m not a big fan controller guy, except my cm v8.
i have the non-led version as I hate the bright blue light through the fan grill annoying my eyes at night.

If some of you guys aren't convinced, wait til some of the member here gets their fan and how they feel about it. To me, this pushes 2-3x more air than HAF/Cosomos 120mm case fans rated at 44cfm.

 

[RallyMaster]

Originally posted by: PUN

Originally posted by: RallyMaster

Originally posted by: PUN
yes they are truly 19dba at 90cfm.

Are you deaf/hard of hearing? Because there's no chance in hell 90 CFM can be done with a 120mm fan at 19 dBA. Yates do not underrate their noise levels as much as numerous companies do. I've personally had more than 6 Yates and all of them have been quieter than comparable sleeve bearing Cooler Masters with similar CFM ratings (sleeve bearing is better than ball bearing and rifle bearing in terms of noise).

no, but i think you may be blind if you didn't read my post.
I said there is no noise difference in my case along with 44cfm 18dba CM fans along with this 90cfm 19dba. I do notice twice much more air flow with this fan.

I believe that is due to increased air pressure and not the concept of increased air flow. I do believe your supposed 90 CFM @ 19 dBA fans have 9 blades that are more angled than their 7 blade counterparts that result in greater air pressure which is what you're trying to state. I am not blind; your explanation is just a little bit out of whack and makes you sound like you work for Cooler Master's marketing department.

 

[theAnimal]

Originally posted by: The111

Originally posted by: theAnimal
As a point of reference, Frostytech measured the V8 at 35.5dB on low and 52.6dB on high.

I must be an idiot, but I cannot find my way around their site at all. Where is this test you're referring to?

http://www.frostytech.com/arti...?articleid=2314&page=3

 

[PUN]

Originally posted by: theAnimal

Originally posted by: The111

Originally posted by: theAnimal
As a point of reference, Frostytech measured the V8 at 35.5dB on low and 52.6dB on high.

I must be an idiot, but I cannot find my way around their site at all. Where is this test you're referring to?

http://www.frostytech.com/arti...?articleid=2314&page=3

35.5dba is the actual noise level with ambient noise.
I believe all reviews rate their noise level in addition to ambient noise.

Avg ambient noise used for any fan reviews are 18. so 35.5dba for low lvl V8 is right on.

 

[PUN]

Originally posted by: RallyMaster

Originally posted by: PUN

Originally posted by: RallyMaster

Originally posted by: PUN
yes they are truly 19dba at 90cfm.

Are you deaf/hard of hearing? Because there's no chance in hell 90 CFM can be done with a 120mm fan at 19 dBA. Yates do not underrate their noise levels as much as numerous companies do. I've personally had more than 6 Yates and all of them have been quieter than comparable sleeve bearing Cooler Masters with similar CFM ratings (sleeve bearing is better than ball bearing and rifle bearing in terms of noise).

no, but i think you may be blind if you didn't read my post.
I said there is no noise difference in my case along with 44cfm 18dba CM fans along with this 90cfm 19dba. I do notice twice much more air flow with this fan.

I believe that is due to increased air pressure and not the concept of increased air flow. I do believe your supposed 90 CFM @ 19 dBA fans have 9 blades that are more angled than their 7 blade counterparts that result in greater air pressure which is what you're trying to state. I am not blind; your explanation is just a little bit out of whack and makes you sound like you work for Cooler Master's marketing department.

what do you mean by air pressure? I feel more air flow with this fan which means more air pressure. My case temp dropped by 6C by switching two of these fans from 44cfm rated CM ones.

I think you are talking about pressurized point due to the design. But with my experience and few others on that site, there is comparable or better flow with this fan than panaflow, adda and yates.

If I put a piece of paper in front of this fan compare to less rated ones (44cfm in my case), the paper flaps around more vigorously. There is no pressurized point of contact causing this flaps as I have the distant far enough. One can also feel the pressure of focal air instead of generalized flow with just a touch.

No I do not work for CM and been a member of anandtech for over 10years as you can see on my avatar.

 

[theAnimal]

Originally posted by: PUN
what do you mean by air pressure? I feel more air flow with this fan which means more air pressure. My case temp dropped by 6C by switching two of these fans from 44cfm rated CM ones.

I think you are talking about pressurized point due to the design. But with my experience and few others on that site, there is comparable or better flow with this fan than panaflow, adda and yates.

If I put a piece of paper in front of this fan compare to less rated ones (44cfm in my case), the paper flaps around more vigorously. There is no pressurized point of contact causing this flaps as I have the distant far enough. One can also feel the pressure of focal air instead of generalized flow with just a touch.

He's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

 

[PUN]

Originally posted by: theAnimal

Originally posted by: PUN
what do you mean by air pressure? I feel more air flow with this fan which means more air pressure. My case temp dropped by 6C by switching two of these fans from 44cfm rated CM ones.

I think you are talking about pressurized point due to the design. But with my experience and few others on that site, there is comparable or better flow with this fan than panaflow, adda and yates.

If I put a piece of paper in front of this fan compare to less rated ones (44cfm in my case), the paper flaps around more vigorously. There is no pressurized point of contact causing this flaps as I have the distant far enough. One can also feel the pressure of focal air instead of generalized flow with just a touch.

He's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

thx for the clarification.
I believe some recommended not to use this fan as a rad fan. I think it can be used as a rad fan if it's placed in a rear with 120mm setup. Otherwise, it's a great case fan.

 

[theAnimal]

Originally posted by: PUN

Originally posted by: theAnimal

Originally posted by: The111

Originally posted by: theAnimal
As a point of reference, Frostytech measured the V8 at 35.5dB on low and 52.6dB on high.

I must be an idiot, but I cannot find my way around their site at all. Where is this test you're referring to?

http://www.frostytech.com/arti...?articleid=2314&page=3

35.5dba is the actual noise level with ambient noise.
I believe all reviews rate their noise level in addition to ambient noise.

Avg ambient noise used for any fan reviews are 18. so 35.5dba for low lvl V8 is right on.

Ambient noise does not affect the sound level of the fan. The difference between the sound level from the fan and ambient is what matters. If you bring your PC to a construction site, the fan will not run louder.

Frostytech measures in a sound isolating chamber (from 12" away), so ambient cannot be a factor.

 

[PUN]

I have an adda and yate fan rated at 33-34dba which sounds like 787 compare to my v8 at max speed. Does this mean adda and yate fans are rated at 80dba+?
Thanks for your clarification again.

 

[Rifter]

you are insane, i have 4 yates in my case and they are nowhere near 80dba, you do realize that 80db about the volume of a gas lawn mower right.

 

[PUN]

Originally posted by: Rifterut
you are insane, i have 4 yates in my case and they are nowhere near 80dba, you do realize that 80db about the volume of a gas lawn mower right.

that's exactly what I am trying to say.
There is no way my V8 is at 55dba when it's 10x quieter than adda and yates fan.

 

[Rifter]

sorry i missed the post where someone said your fan was 55dba, that would be pretty loud for a normal PC fan. I mean i have used some 4100rpm 120x38mm Delta fans in servers and they are rated at 55dba but they move 180CFM+ I dont think your V8 will obtain that noise level. I also believe that the yates are one of the most accurate in rated fan noise level. I have used pretty much every yate fan out there over the years rated from 22-35dba and i believe all there ratings. I have 2 22dba low rpm models and 2 28dba medium speed all 120mm running less than 2 feet from me right now and my 4830 fan is louder than them all combined.

 

[Rifter]

just looked at the specs of that V8 and its only a 1800rpm fan, there is no way its 55dba, its probably about 30dba at max speed.

 

[PUN]

it's rated at 21dba max.
but according to frostytech, it's dba is 55dba under max.

My take is,
v8 is indeed 21dba
CM fans are 19dba
Yate, Adda, Delta are 28-35dba

 

[theAnimal]

An 800rpm 120mm fan is ~20dBA @ 1m distance (and obviously more @ 12" distance like Frostytech).

There is no way that the V8 will be 21dBA at 1800rpm @ 12" or even 1m, so they've obviously rated at a greater distance (15m according to my calculations, and it is 44dBA @ 1m).

 

[LOUISSSSS]

this thread is so dumb lol. are you guys not aware that manuf's can rate their specs at anything they want??? this is old business guys.

 

[The111]

No offense guys, but some of the things you are saying go against very basic fluid dynamics (I have a BS in Aerospace Engineering). I do appreciate all the discussion though since I started this thread, I'm learning about a lot of different fan options here. I ordered one of the "90cfm 19db" CM's, and I also ordered a High and Medium Yates... when I get all 3 I will make a totally subjective non-analytical comparison of airflow and noise.

Originally posted by: RallyMaster
I believe that is due to increased air pressure and not the concept of increased air flow.

You can't have one without the other. The pressure you are referring to is called dynamic pressure, and you can't increase that without increasing the airflow. I read so many posts where people acts as if they are independent, i.e. "great pressure but a slow airflow" or vice versa. It makes no sense.

Originally posted by: theAnimalHe's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

That's not what static pressure is, and what you describe doesn't really make sense anyway. A fan pushes air from point A to point B. A grill in between those points is going to slow the air down no matter what fan made the original push. No fan imparts magical "grill avoidance abilities" to the air that it pushes.

 

[PUN]

Originally posted by: The111
No offense guys, but some of the things you are saying go against very basic fluid dynamics (I have a BS in Aerospace Engineering). I do appreciate all the discussion though since I started this thread, I'm learning about a lot of different fan options here. I ordered one of the "90cfm 19db" CM's, and I also ordered a High and Medium Yates... when I get all 3 I will make a totally subjective non-analytical comparison of airflow and noise.

Originally posted by: RallyMaster
I believe that is due to increased air pressure and not the concept of increased air flow.

You can't have one without the other. The pressure you are referring to is called dynamic pressure, and you can't increase that without increasing the airflow. I read so many posts where people acts as if they are independent, i.e. "great pressure but a slow airflow" or vice versa. It makes no sense.

Originally posted by: theAnimalHe's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

That's not what static pressure is, and what you describe doesn't really make sense anyway. A fan pushes air from point A to point B. A grill in between those points is going to slow the air down no matter what fan made the original push. No fan imparts magical "grill avoidance abilities" to the air that it pushes.

The111,
We'd appreciate it if you could give us your finding when you get the fan.
You'll find that fan to be super quiet and move tons of air compare to many others.

 

[theAnimal]

Originally posted by: The111

Originally posted by: theAnimalHe's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

That's not what static pressure is, and what you describe doesn't really make sense anyway. A fan pushes air from point A to point B. A grill in between those points is going to slow the air down no matter what fan made the original push. No fan imparts magical "grill avoidance abilities" to the air that it pushes.

The fact remains that some fans are better at dealing with obstacles to airflow. What is the correct term for this? I've always seen it defined as static pressure.

 

[JEDIYoda]

Originally posted by: The111

Originally posted by: PUN
Forget those fans.

Go with Blue LED CoolerMaster 90CFM 18dba (yes that is 18dba) for 9.99 from svc.com

Wow. Sounds way too good to be true. You've tried one?

I use nothing but the CoolerMaster fans!!

 

[LOUISSSSS]

Originally posted by: theAnimal

Originally posted by: The111

Originally posted by: theAnimalHe's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

That's not what static pressure is, and what you describe doesn't really make sense anyway. A fan pushes air from point A to point B. A grill in between those points is going to slow the air down no matter what fan made the original push. No fan imparts magical "grill avoidance abilities" to the air that it pushes.

The fact remains that some fans are better at dealing with obstacles to airflow. What is the correct term for this? I've always seen it defined as static pressure.

yes you're right, that is called static pressure and yes, there IS a difference between fans that provide good CFM and/or good static pressure. yes, some fans do better at pushing or pulling air through a heatsink/radiator or something similar.

as for JediYoda, then you are missing out on lots of better/cheaper fans out there... coolermaster is NOT known for making great fans. for case fans, the YL High speed fans on a rheobus are the undisputed king of price/performance. almost ALL fans cost double of what the YL's can be had for and do NOT provide double the CFM/$$ that the YL's provide at ~$3.50 each.

 

[PUN]

Originally posted by: LOUISSSSS

Originally posted by: theAnimal

Originally posted by: The111

Originally posted by: theAnimalHe's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

That's not what static pressure is, and what you describe doesn't really make sense anyway. A fan pushes air from point A to point B. A grill in between those points is going to slow the air down no matter what fan made the original push. No fan imparts magical "grill avoidance abilities" to the air that it pushes.

The fact remains that some fans are better at dealing with obstacles to airflow. What is the correct term for this? I've always seen it defined as static pressure.

yes you're right, that is called static pressure and yes, there IS a difference between fans that provide good CFM and/or good static pressure. yes, some fans do better at pushing or pulling air through a heatsink/radiator or something similar.

as for JediYoda, then you are missing out on lots of better/cheaper fans out there... coolermaster is NOT known for making great fans. for case fans, the YL High speed fans on a rheobus are the undisputed king of price/performance. almost ALL fans cost double of what the YL's can be had for and do NOT provide double the CFM/$$ that the YL's provide at ~$3.50 each.

I have the yates fan and they are loud as hell. Also, they push less air than my cm 90cfm/19dba ones.

 

[LOUISSSSS]

Originally posted by: PUN

Originally posted by: LOUISSSSS

Originally posted by: theAnimal

Originally posted by: The111

Originally posted by: theAnimalHe's talking about static pressure, which is the ability of a fan to move air when there is an obstacle such as a grill or heatsink in the way.

That's not what static pressure is, and what you describe doesn't really make sense anyway. A fan pushes air from point A to point B. A grill in between those points is going to slow the air down no matter what fan made the original push. No fan imparts magical "grill avoidance abilities" to the air that it pushes.

The fact remains that some fans are better at dealing with obstacles to airflow. What is the correct term for this? I've always seen it defined as static pressure.

yes you're right, that is called static pressure and yes, there IS a difference between fans that provide good CFM and/or good static pressure. yes, some fans do better at pushing or pulling air through a heatsink/radiator or something similar.

as for JediYoda, then you are missing out on lots of better/cheaper fans out there... coolermaster is NOT known for making great fans. for case fans, the YL High speed fans on a rheobus are the undisputed king of price/performance. almost ALL fans cost double of what the YL's can be had for and do NOT provide double the CFM/$$ that the YL's provide at ~$3.50 each.

I have the yates fan and they are loud as hell. Also, they push less air than my cm 90cfm/19dba ones.

have any data to back this statement up?

 

[aigomorla]

were talking about yates here?

are you kidding me?

Yates are OEM NEXUS fans.. meaning they make fans for NEXUS

NEXUS is one of the quiestest raited fans on the planet dude.

Also there is no fan that does 90CFM @ 19dB unless we use CRAPPX err i mean SilenX's dB raiting.

Are you aware how quiet 19dB is?

Originally posted by: PUN

35.5dba is the actual noise level with ambient noise.
I believe all reviews rate their noise level in addition to ambient noise.

Avg ambient noise used for any fan reviews are 18. so 35.5dba for low lvl V8 is right on.

ummm... u have no idea how wrong you are.

OP the BEST LED FAN, is the Zalman F3 series. Better then coolermaster, better then YATE.

It has more STATIC and is quieter downvolted, and pushes a lot of air. And can be used in the horizontal possition without it dying in 4-5months.

Only fan better is a SFLEX but not by much, and the SFLEX does not come iin LEDs

http://www.pccasegear.com/inde..._info&products_id=6682

its cheaper elsewhere but im showing u the fan.