Yate Loon D12SH-12 Round-up Review [56k no]

Siegfried262 · Feb 6, 2011

Quote:

Originally Posted by Tator Tot;12276931
Insanely fast RPM Delta's.

There are some 5500 RPM models that are 256CFM & 66dB(A). (~3.8:1 Ratio)
Obviously that's MUCH larger than your standard 2:1 ratio.

Interesting. Can't help but wonder if once you get past a certain decibel ratio if noise almost becomes moot due to the already huge noise level.

It is interesting watching fan manufacturers come out with and try new designs/blade count/shape/etc to try and get more airflow for less noise to varying degrees of success.

Tator Tot · Feb 6, 2011

Quote:

Originally Posted by Siegfried262;12276966
Interesting. Can't help but wonder if once you get past a certain decibel ratio if noise almost becomes moot due to the already huge noise level.

It is interesting watching fan manufacturers come out with and try new designs/blade count/shape/etc to try and get more airflow for less noise to varying degrees of success.

Very few try; considering there is only a handful of OEM's in the business. (Most people go to Yue Lin, ADDA, Yate Loon, or Globe.)

Larger markers like Delta, San Ace, NMB-Mat, Panaflo, ect stick to the same general designs, minor tweaks ect.

That's because they sell to the Server/IT crowd who don't need silence. They need Airflow & Static pressure.
If you've ever been in a temp controlled room server room, you would know what I'm talking about.
A battalion of vacuume cleaners are going off in there, ti sounds like.

PapaSmurf · Feb 6, 2011

But that can be misleading. A fan that pushes 256CFM pushes 4 times the amount of air as one that moves 64CFM. But a fan at 66dB is 100 times as loud as a 46dB fan. That makes it difficult to compare them as the they don't scale the same.

I used to run big IBM MainFrames back in the day. If you had a power outage the drop in sound level was astonishing.

Tator Tot · Feb 6, 2011

As I said, "a battalion of vacuum cleaners."

I've been in some server rooms; doesn't matter who supplies the racks or the boxes, the story is always the same.
Earplugs recommended.

PapaSmurf · Feb 6, 2011

Try spending 8 to 12 hours a day 5 or 6 days a week in them. Then add in having to swap out those old Winchester Disk Packs that looked like big land mines and weighed 25 pounds or so numerous times a shift.

ehume · Feb 6, 2011

Quote:

Originally Posted by PapaSmurf;12277263
But that can be misleading. A fan that pushes 256CFM pushes 4 times the amount of air as one that moves 64CFM. But a fan at 66dB is 100 times as loud as a 46dB fan. That makes it difficult to compare them as the they don't scale the same.

I used to run big IBM MainFrames back in the day. If you had a power outage the drop in sound level was astonishing.

According to this and similar references, an increase of 20dB represents a quadrupling of loudness.

Sheyster · Feb 6, 2011

Quote:

Originally Posted by PapaSmurf

But that can be misleading. A fan that pushes 256CFM pushes 4 times the amount of air as one that moves 64CFM. But a fan at 66dB is 100 times as loud as a 46dB fan. That makes it difficult to compare them as the they don't scale the same.

I used to run big IBM MainFrames back in the day. If you had a power outage the drop in sound level was astonishing.

Yeah, I used to work for an accoustical engineering company. Even 5db higher is huge with a fan, when you get over about 40db.

I wouldn't mind getting the Gelid's, IF they didn't have the thermal sensor. But I don't want to deal with the potential issues of a faulty thermal sensor. A few people on newegg have reported they could not get the fan up to full speed. I want a basic affordable (< $10) 3-pin quiet fan around 60 CFM, no thermal sensor in the picture please.

EDIT: I found these: http://www.newegg.com/Product/Produc...-018-_-Product

They look perfect for my needs, except that price!

EDIT 2: Another scenario I'm considering is just buying 5x Petra or Sidewinder YL SH fans and slowing them down to 60%-70% speed via the UEFI. This way if I decide I need more CFM in the future, I have it on hand without even having to open the case. I'll have to move the H70's pump power lead to the PWR fan header (uncontrolled-- always 100% power). The remaining 3 headers can be controlled in the UEFI in 1% increments, so I'll be able to fine tune the fan speeds almost perfectly. I can recoup some of the cost by selling the 5 high CFM fans I have now here on OCN.

Tator Tot · Feb 6, 2011

GeLID's come in a PWM form that's free of any temp sensor control.

You can also get some Arctic Cooling models as well.

A note about the AC fans though; they're not an FDB bearing. They're a rifle bearing.

Sheyster · Feb 6, 2011

Quote:

Originally Posted by Tator Tot

GeLID's come in a PWM form that's free of any temp sensor control.

You can also get some Arctic Cooling models as well.

A note about the AC fans though; they're not an FDB bearing. They're a rifle bearing.

Wow I don't know how I missed those GeLID's...

Those are perfect, or possibly the SH plan posted above.

Thanks for being so helpful!

Tator Tot · Feb 6, 2011

You could say I'm a fanatic.

I would also like to note; since it'll only be funny to me, I recently got the Lamptron Fan-Atic fan controller in the mail as a review sample

So it's a double pun.

ehume · Feb 7, 2011

Quote:

Originally Posted by Tator Tot;12285107
You could say I'm a fanatic.

I would also like to note; since it'll only be funny to me, I recently got the Lamptron Fan-Atic fan controller in the mail as a review sample

So it's a double pun.

Yup. You are definitely one fan-atic.

I can say that because it takes one to know one.

Chunky_Chimp · Feb 7, 2011

Much as I hate to end a good discussion, we do need to stay on topic here. Cleaned.

xD3aDPooLx · Jun 1, 2011

I wonder how the koolertek one stack up.

Tator Tot · Jun 1, 2011

Quote:

Originally Posted by xD3aDPooLx;13705038
I wonder how the koolertek one stack up.

Send me some and I'll test them.

PapaSmurf · Jun 1, 2011

I bet you would.

Tator Tot · Jun 1, 2011

Quote:

Originally Posted by PapaSmurf;13707285
I bet you would.

I'll test any fan sent to me. It's fun.

These round-up styles are a pain though, because you've got to test an array of fans and then mangle all the results, then post them.

wompwomp · Jun 9, 2011

I don't understand. So they are some companies that get fake ones or they get better batches??

PapaSmurf · Jun 9, 2011

Quote:

Originally Posted by wompwomp;13807545
I don't understand. So they are some companies that get fake ones or they get better batches??

They aren't fake (at least no one has ever been able to show any evidence that there are any fakes). But yes, some of them are better quality than others and Tator does a good job of sorting them out. Check the beginning of the thread to find out where to get the known better quality ones if it is that important to you. Personally, I think it's all overblown. Sure there is a difference, but I can't see it being enough to get all worked up about and the difference won't amount to squat when it comes to how it affects the temps.

Tator Tot · Jun 9, 2011

Quote:

Originally Posted by wompwomp;13807545
I don't understand. So they are some companies that get fake ones or they get better batches??

Sidewinders, Danger Den, & Petra's Tech Shop get what should be called the "full package" when they order fans as they get them directly from Yate Loon. They've got full sized components and all of the components on them.

On the other hand, the rest of the vendors get their fans through a distributor, who gets a cost down version of the same fan (that performs lower and to be honest, poorly) so that the vendors can sell the fan at the same cost as the other guys and keep prices low.

ehume · Jun 10, 2011

IOW, YL sells fans of differing quality with the same model number. Other companies would have different model numbers. YL may do the same, but we don't see those "hidden" model numbers, if they exist.

Yate Loon D12SH-12 Round-up Review [56k no]

Siegfried262

Tator Tot

PapaSmurf

Tator Tot

PapaSmurf

ehume

Sheyster

Tator Tot

Sheyster

Tator Tot

ehume

Chunky_Chimp

xD3aDPooLx

Tator Tot

PapaSmurf

Tator Tot

wompwomp

PapaSmurf

Tator Tot

ehume

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