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be quiet! Dark Rock Pro 3 - Page 23

post #221 of 506
Quote:
Originally Posted by marn3us View Post

0.4A power draw?? Man that's a lot for such a slow spinning fan!

My NF-A14's are bigger (140) and have .18A at 2000rpm i believe...

Wondering why it draws so much current? redface.gif

Ps: I still love my DRP3, mind you biggrin.gif
My guess is be quiet! spec is maximum startup load, not running load. While the fan may pull 0.4A momentarily to start, it probabaly runs on 0.08A or 0.1A thumb.gif Just a guess.
While that may sound high, few computer fan companies list the actual maximum amperage load the fans use momentarily on startup .. which is several times what their operating amp load is. An example of this maximum load draw is the big caps mounted on many motors. The two round topped boxes on top this motor are starter capacitors The box on the side is where wiring hook-up is contained.
post #222 of 506
Quote:
Originally Posted by bleets View Post

Yup and excellent timing since i just replaced by board because one ram slot had 2 pins joined by a solder blob - weird

anyways
it's running @ 800rpm when set to 12.5%.
Doh.
By contrast the noctuas I have are running at 250rpm (sorry BQ but the SW2's just werent able to suck air in when constricted by a filter and door even at full speed frown.gif) so err....yeah that's still odd...
New board, new fan...same result :/
Sorry, you lost me. Are you talking on cooler or as intake fans on case? Either way I don't believe what my hands feel as a judgement of how much air is moving. Sorry, but it just doesn't work very well. I have two aiflow meters. One uses hot-wire and other is an impeller. Hot-wire is far more accurate.wink.gif It measures the change in heat created by friction moving past the wire. The wire is so small it is almost impossible to see. Big difference between it and using a wet finger. biggrin.gif

Anyways, what are your cooler intake air temps like with the different intake fans?
post #223 of 506
Quote:
Originally Posted by doyll View Post

Sorry, you lost me. Are you talking on cooler or as intake fans on case? Either way I don't believe what my hands feel as a judgement of how much air is moving. Sorry, but it just doesn't work very well. I have two aiflow meters. One uses hot-wire and other is an impeller. Hot-wire is far more accurate.wink.gif It measures the change in heat created by friction moving past the wire. The wire is so small it is almost impossible to see. Big difference between it and using a wet finger. biggrin.gif

Anyways, what are your cooler intake air temps like with the different intake fans?

Not got round to testing yet, finishing setting up the new replacement MB smile.gif

Anyways the main thing is the new MB, new fan and it's still not going lower than 800 :/ Very odd.
post #224 of 506
Quote:
Originally Posted by bleets View Post

Not got round to testing yet, finishing setting up the new replacement MB smile.gif

Anyways the main thing is the new MB, new fan and it's still not going lower than 800 :/ Very odd.
So idling 800rpm on 2200rpm fan is about 35% speed. What is your PWM% setting ?
post #225 of 506
Quote:
Originally Posted by doyll View Post

So idling 800rpm on 2200rpm fan is about 35% speed. What is your PWM% setting ?

No the max speed of the 120mm fan is 1600/1700rpm, so it's 50% even when everything is set to 12.5%
post #226 of 506
Quote:
Originally Posted by bleets View Post

No the max speed of the 120mm fan is 1600/1700rpm, so it's 50% even when everything is set to 12.5%
No eye deer mate. Still no eye deer. Still on idea what a deer laying in the road with no eyes, no legs and no privates is either. tongue.gif
post #227 of 506
Quote:
Originally Posted by doyll View Post

No eye deer mate. Still no eye deer. Still on idea what a deer laying in the road with no eyes, no legs and no privates is either. tongue.gif

That's one of my favourite jokes. Damn you.

Anyways, connected the fans for individual testing on the same header and 135mm central fan goes from 350 to 1400rpm which seems accurate (and the new 135mm actually works normally, the original one span to 2200rpm so that wasnt quite right!)

The 120mm front fan is 790 minimum and 1700 max. So the max speed is accurate but contrary to what I've been told my a be quiet rep on a ticket the 120mm front fan doesnt seem to want to spin any slower.

Ho hum.
Quote:
Originally Posted by Chris BQ View Post

Got the original one working smile.gif

Don't suppose you have any ideas? smile.gif
Edited by bleets - 1/26/16 at 8:15am
post #228 of 506
@bleets: my 120mm fan goes from 800 to 1720 rpm as well.

I can only reduce its speed if I enable the "Ultra low noise" mode on my X99 Deluxe which extends the range to 440-1720rpm. But without that option enabled (which is off by default) it behaves just like yours
Edited by marn3us - 1/26/16 at 8:55am
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post #229 of 506
Quote:
Originally Posted by marn3us View Post

@bleets: my 120mm fan goes from 800 to 1720 rpm as well.

I can only reduce its speed if I enable the "Ultra low noise" mode on my X99 Deluxe which extends the range to 440-1720rpm. But without that option enabled (which is off by default) it behaves just like yours
so it's not a fan problem but a PWM % signal problem?

What is your PWM % signal at 440rpm?

Obviously that is assuming the scale in you control software is close to accurate. tongue.gif

Some give the control as rpm % to temp .. and very few motherboards actually use the rpm signal. They use heat from chips and then adjust voltage to speedup / slowdown fans, but have no idea (and could care less) what the fan rpm is. All they is increase / decrease fan voltage or PWM signal % as temps increase / decrease in component (at whatever ratio we select)..
post #230 of 506
Quote:
Originally Posted by doyll View Post

so it's not a fan problem but a PWM % signal problem?

What is your PWM % signal at 440rpm?

Obviously that is assuming the scale in you control software is close to accurate. tongue.gif

Some give the control as rpm % to temp .. and very few motherboards actually use the rpm signal. They use heat from chips and then adjust voltage to speedup / slowdown fans, but have no idea (and could care less) what the fan rpm is. All they is increase / decrease fan voltage or PWM signal % as temps increase / decrease in component (at whatever ratio we select)..

ASUS's AI Suite 3 has a very advanced fan control software indeed, very similar to Aquaero's one if you happen to know it.

When you first launch it, it tests each fan from min speed to max speed and it draws a curve with % (PWM or current) on the Y-axis and temp target on the X-axis.

Then it allows you to customize the curve as you want and helps you with a small table containing the RPM value corresponding to each 10% increase in pwm/current (like 20%=800rpm, 30%=1000rpm and so on so so forth).

The Cpu fan header also has the aforementioned "CPU Extreme Quiet" setting which extends the pwm range of the fan, bringing for example my DRP3's 120mm from the standard 800rpm at minimum pwm down to 440ish.

I really love AI Suite 3 and it's one of the reasons why I only buy ASUS boards biggrin.gif

EDIT: here's a quote direcly from X99 Deluxe's page that explains what I was saying smile.gif
"Fan Xpert 3 supports hardware-level PWM/DC combo mode for both the CPU and case fans. It even can reduce the CPU fan speed to below the default minimum, for extra-quiet and power saving operation during light loads"
Edited by marn3us - 1/26/16 at 2:13pm
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CoolingCoolingCoolingCooling
EK Fullcover Waterblock for GTX 980 Alphacool NexXxos ST30 420mm Radiator Alphacool NexXxos UT60 280mm Radiator EK D5 PWM Pump 
CoolingOSMonitorPower
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Phanteks Enthoo Pro ASUS ROG Gladius Steelseries QCK Heavy ASUS Crystal Sound 2 
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