Scythe Gentle Typhoon 120mm 1850 RPM Fan Question

[jcrouse]

Can someone tell me how many Watts these fans pull on startup and while running? I am trying to figure out how many of these I can get on a single channel on an Aquaero 5 or a Poweradjust 2. Anyone wanna take a shot?

Thanks,
John

[Alexandr0s]

Startup: 0.36A @ 12V (=4.32W); running: 0.083A @12V (=1W).

More information can be found here.

[jcrouse]

Startup: 0.36A @ 12V (=4.32W); running: 0.083A @12V (=1W).

More information can be found here.

Thanks for the reply. Yeah, I saw that but am usually a little cautious of mfg specs. I was hoping there were real world numbers from one of a certain individuals testing, name unmentioned, that LOVES these fans.

Thanks,
John

[skinnee]

Thats actually very close, Nidec was very truthful in their specs.

[Alexandr0s]

Yup, even their airflow and audio tests are pretty darn accurate, which is quite rare for fan manufacturers (CM anyone?). I guess they should be accurate, since they design fans for probably only a few large companies. And it's not smart to give them specs which you know your fans won't live up to when you're dealing with large orders like some companies place.

[Waterlogged]

Thats actually very close, Nidec was very truthful in their specs.

Yup, even their airflow and audio tests are pretty darn accurate, which is quite rare for fan manufacturers (CM anyone?). I guess they should be accurate, since they design fans for probably only a few large companies. And it's not smart to give them specs which you know your fans won't live up to when you're dealing with large orders like some companies place.

That's because the server market is far less forgiving than the consumer market is. Case in point...if a couple of "certain German companies" had pulled the crap they have in the server market, they'd likely be OOB by now, instead...their still enjoying healthy bottom lines.

[skinnee]

I am very familiar with Nidec in the enterprise market.

[SkItZo]

...

You said bottom uhuhuh

I'm such a child

[avddreamr]

Ap-15 = .36A
1.65/.360
AP-14=.21
7 ap-14s

So in theory, the aquaero in most setups will control 12 ap-15s (one of the channels will probably be controlling a pump), or 21 ap-14's.


Thats more than adequate for nearly all users I would imagine.
You can also adda power adjust, and increase it to 10 (45w boost capability).

I wonder if the aquaero has similar 1.85x Current"boost"?

[jcrouse]

Ap-15 = .36A
1.65/.360
AP-14=.21
7 ap-14s

So in theory, the aquaero in most setups will control 12 ap-15s (one of the channels will probably be controlling a pump), or 21 ap-14's.


Thats more than adequate for nearly all users I would imagine.
You can also adda power adjust, and increase it to 10 (45w boost capability).

I wonder if the aquaero has similar 1.85x Current"boost"?

Could you explain more? What are those numbers? What is 1.65/.360? How is 7 ap-14s relevent? Remember, so of us are noobs. I do know that the new Little Devil PC-V8 case, fully loaded with 3 480 Rads and case fans would be 17 fans, plus maybe 2 or 3 pumps.

John

[Computurd]

how many could you power with one port on the Tbalancer?

[Alexandr0s]

I ran 3 1450RPM GT's from a single T-Balancer port without problems. Not sure how it would handle 3 1850RPM GT's. I believe it can handle 1A, though I'm not entirely sure.

[avddreamr]

Could you explain more? What are those numbers? What is 1.65/.360? How is 7 ap-14s relevent? Remember, so of us are noobs. I do know that the new Little Devil PC-V8 case, fully loaded with 3 480 Rads and case fans would be 17 fans, plus maybe 2 or 3 pumps.

John

Nidec Lists specifications for two models, the AP-15, and the AP-14 (1850 RPM and 1450 RPM).

The question may have lead to .. I wonder if I spring for an Aquaero 5.. how many fans can I power for my watercooling system.

When a fan starts up, it requires additional current to start that is beyond it's power consumption.

Remember the simplified (for our purposes) equation
Power (in W)= Voltage * Amp
The Ap-15 requires .360 A at startup, it's power by a 12 volt line.
Each AP-15 fan requires .360Amps*12Volts=4.32W
The AP-14 Requires .21Amps*12volts=2.52W

The Aquaero 5 Can provide up to 5a total, and up to 1.65A a channel.
I'm certain that you can program to turn on the channels in a particular order.
So AP-15 1.65A/.36A=4.58333333 You can't split a fan.. so it's 4 fans
AP-14 1.65A/.21= 7.85 Again you can't split a fan... so it 7 fans.


(revised math.. I used a calculator this time and went to aquacomputers website.. instead of from memory).
The Power adust 2 , has a temporary feature of 48W/channel (peak power delivery). 48W/12V =4A Maximum Current Delivery
4A/1.65A= 2.42.
Each poweradjust can power 2.42 as much current as a single aquaero 5 channel. (Or just Remember almost 2 and a half times).
2.42*4.58333 = 11 Fans
2.42*7.85= 19 fans (18.9977 is close enough).
If you need to power 33 or more Gentle Typhoons, the 50 dollars for the poweradjust will be a good addition to the aquaero.

So why on earth would you care about ... the lowly 1450 rpm fan? You ask?
If you are considering using 17 fans... in all probability you don't need 17 1850 rpm Fans, for a single computer.
If you glance at skinees coolgate radiator review... a 1450rpm fan at 1.6 gpm will handle a 400W load with a 10 degree delta (acceptable).
With 15 fans you can power 5 of those radiators...
How likely are you going to need to dissipate 2000W, (and would you want to be in the same room as that 2000W space heater).
It would probably take a heavily over-clocked SR-2, and 4 GTX 480's overclocked to 850+....well.. this is extreme systems..

but the gt-14 has it's perks.. and as someone who has 8 GT AP-15's in his computer (running of of his motherboard fan headers), I never have the need to go anything beyond Ap14 speeds.

Or did you need to cool more than 2000Watts?

[jcrouse]

Awesome post. That all makes sense and is the exact reason we frequent message boards.

Lets move onto pumps. Running the speed controlled version of the MCP-655 on the number 5 setting, is it possible to run 2 pumps off of the same AE5 channel? How about the same PA2 channel? How about 2 pumps on the AE5 on separate channels? and finally, how about 3 pumps off of the AE5, all of separate channels?

Thanks,
John

[jcrouse]

Well ... To answer my own question, maybe. The specs for the pump are listed at 2amps. This would be 4 amps for 2 pumps and would probably work, however it would be consuming most of the available capacity of the AE5, leaving not much left for fans. I believe I saw the mfg also post about heat being an issue in such an extreme application. ... Sounds like a bad idea.

John

[avddreamr]

Well ... To answer my own question, maybe. The specs for the pump are listed at 2amps. This would be 4 amps for 2 pumps and would probably work, however it would be consuming most of the available capacity of the AE5, leaving not much left for fans. I believe I saw the mfg also post about heat being an issue in such an extreme application. ... Sounds like a bad idea.

John

No, you can't run two 655's off of the aquaero. Refer to the A5 thread for further details.
I think you can run two mcp355's off of it. Truthfully, you pick a pump speed you can live with, and let your fans handle the thermals. GPU's are not a flow sensitive as cpu's.. so you can pick a low speed setting for your gpu loop, and then an adjustable setting for your cpu loop.

If you want two ddcs to be powered by the a5 then you need to get the waterblock, instead of the heatsink.

However, I'm sure that you can get a mcp35x pwm controlled off of channel 4, and pick up a mcp 350 for your gpu loop and control that off of one of the other channels, and then you have two channels for fans. There will also be addons that will allow you to add even more fan channels.

Finally, you can purchase a pair of aquastream XTs (roughly equivalent to a D5), and have the A5 control them. You will still have all 4 fan channels free!


Although, that will be pricey. Between both pumps, the A5, and two flow meters you are looking at $550! dollars.

What are you going to cool that you need this kind of control? This is not a beginners build.

[Johnny87au]

im pretty sure you can run both pumps on the aquero controller, been a while since ive actually browsed the thread but you need to run them mainly on channel 1and 4 but considering your using the block as it increases some heat..

[Shoggy]

One thing that has not been mentioned so far is that the aquaero 5 also allows a controlled overload. The aquaero monitors each fan channel in several ways so it is almost impossible to damage them. Even a short circuit can be detected.

The persistent maximum load is 1.65A but short peaks can be much higher to ensure that pumps or fans will spin-up correctly. The allowed overload depends on its strength and time. If you exceed the limit only by a little the overload can last longer while a heavy overload will be only tolerated for a very short time.

In addition to that we also monitor the temperature. At 85°C the power is set to 100% to reduce the power dissipation. This way the temperature will be reduced very fast. Back at 65°C your initial settings will be loaded again. So if a channel is not able to handle the connected load it could mean that the power will always jump up and down. But it can also stop if the load is so huge that even setting the power to 100% does not help. In this case the fan channel will be deactivated at 95°C to avoid damages on the device.

In the end it means you do not have to worry too much about the startup power since it can also exceed 1.65A.