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Corsair ML120 fans - Page 12

post #111 of 257
Quote:
Originally Posted by doyll View Post

Then a couple of good front intakes will make a big difference in case airflow.
2x ML120s front intake, 2x 140mm Fractal Silent fans as exhaust then ? I shouldn't mix them up ?
post #112 of 257
Quote:
Originally Posted by Corsair Joseph View Post


I'll be more than happy to get those fans back from you guys for FA (failure analysis) here in HQ. That way we can figure out if these are just bad units right off the bat, or something else. Please submit an RMA request and send me a PM with your ticket # so I can provide you guys pre-paid labels to cover shipping fees.

@sdch You mentioned that you used PWM to control the fans, I'd assume that's through your BIOS mobo? Where are you getting the RPM readings?

The reason why I'm asking is because you said 30-35% is around 750-850 RPM when these fans should run around 500 rpm at 40%. I just want to make sure that you're getting accurate reading.
Sorry for the late reply, I'm already going through the return process (purchased from Corsair directly).

I'm pretty sure about the fan speed. I already took the fans out of my case, but here's an example of one I pulled back out of a box at random just now.

35% in bios:


~740 RPM in bios:


~740 RPM in HWMonitor:


The oscillating sound is only in the vertical orientation:
https://streamable.com/ayxn

Not when positioned horizontally:
https://streamable.com/5fjb

It's much worse when you add a bit of impedance to the fan by holding a radiator to it, or even a book or your hand for a quick test. The worst offender was the pull fan in a push/pull configuration on an h55 radiator for my gpu. Testing the RPMs of the push and pull fans showed a difference of less than 50 RPM with the pull fan being slightly slower. It sounded like someone whistling softly in a modulated kind of way.

Anyway, I hope you guys identify the issue, and I included some of these notes in the RMA ticket.
post #113 of 257
Quote:
Originally Posted by Klocek001 View Post

2x ML120s front intake, 2x 140mm Fractal Silent fans as exhaust then ? I shouldn't mix them up ?
The ML 140 is a poor choice for Define R5 case fans.

Why get Define R5 case designed for 140mm fans and then limit the airflow by using 120mm fans in it? Typically 140mm fans move 30-50% more air at same noise level .. which is why we see more and more cases using 140mm fans. I think ML 120 is a poor choice for Define R5. While the ML 140 appears to be a great fan, I would probably use a less expensive fan with similar performance.
post #114 of 257
Quote:
Originally Posted by doyll View Post

The ML 140 is a poor choice for Define R5 case fans.

Why get Define R5 case designed for 140mm fans and then limit the airflow by using 120mm fans in it? Typically 140mm fans move 30-50% more air at same noise level .. which is why we see more and more cases using 140mm fans. I think ML 120 is a poor choice for Define R5. While the ML 140 appears to be a great fan, I would probably use a less expensive fan with similar performance.
I already got ML120 Twinpack, that's what I'm trying to get across to you.I bought them before I bought the r5.
post #115 of 257
Quote:
Originally Posted by Klocek001 View Post

I already got ML120 Twinpack, that's what I'm trying to get across to you.I bought them before I bought the r5.
I know you have the ML, but it doesn't change any of the info I've posted. They will probably do a littel better as front intakes than stock fans, but there are many other that will move a lot more air with less noise.
post #116 of 257
Quote:
Originally Posted by doyll View Post

I know you have the ML, but it doesn't change any of the info I've posted. They will probably do a littel better as front intakes than stock fans, but there are many other that will move a lot more air with less noise.
will ML140s really make that much of a difference over two ML120s @1400rpm in a single 1080 FE system ? That's ultimately one 180W GPU with blower cooler that's supposed to hog all this air, and ML120 twin pack is 130PLN while a singe ML140 is 100PLN. Two of those gotta push more air than a single 140, right?
Noise is not an issue probably with two ML120s @1400rpm inside a full side panel r5. Even at 1800rpm they're not audible over 1080 FE.
Edited by Klocek001 - 8/6/16 at 4:14am
post #117 of 257
Quote:
Originally Posted by Klocek001 View Post

will ML140s really make that much of a difference over two ML120s @1400rpm in a single 1080 FE system ? That's ultimately one 180W GPU with blower cooler that's supposed to hog all this air, and ML120 twin pack is 130PLN while a singe ML140 is 100PLN. Two of those gotta push more air than a single 140, right?
Noise is not an issue probably with two ML120s @1400rpm inside a full side panel r5. Even at 1800rpm they're not audible over 1080 FE.
Like I said
Quote:
They will probably do a littel better as front intakes than stock fans, but there are many other that will move a lot more air with less noise.
post #118 of 257
Quote:
Originally Posted by Klocek001 View Post

will ML140s really make that much of a difference over two ML120s @1400rpm in a single 1080 FE system ? That's ultimately one 180W GPU with blower cooler that's supposed to hog all this air, and ML120 twin pack is 130PLN while a singe ML140 is 100PLN. Two of those gotta push more air than a single 140, right?
Noise is not an issue probably with two ML120s @1400rpm inside a full side panel r5. Even at 1800rpm they're not audible over 1080 FE.

The 140 will move a good amount more air at the same noise level. I'm with @doyll on this one, swapping out the 140s to 120s isn't a very good ideal for your airflow/
post #119 of 257
I just looked at the price on ML Pros. lmaosmiley.gif
ML 120 Pro are £15.66 plus 21% tax and the ML 140 are £16.52 plus tax.
PH-F120MP are £9.57 plus 21% tax and PH-F140MP are £12.69 plus 21% tax.
That\s a difference of £6.09 for 120mm fan and a difference of £4.40 for 140mm.

I can order TY-147A and TY-143 Sq from Germany for £11.37 each plus tax. thumb.gif
post #120 of 257
Quote:
Originally Posted by ciarlatano View Post

The 140 will move a good amount more air at the same noise level. I'm with @doyll on this one, swapping out the 140s to 120s isn't a very good ideal for your airflow/
it was either a single ML140 or ML120 Twinpack, I didn't wanna drop that much on two case fans to buy ML140 twinpack.
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