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OCN Aquaero Owners Club - Page 697

post #6961 of 11113
Sorry about that Pennover, Mega's right, had no idea there were different configs of LED tape, and didn't think about an LED driver for the amperage.doh.gif
post #6962 of 11113
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post #6963 of 11113
Hey, I just want to check if the Mayhems Blitz Prois safe to run through the Aquaero 6 xt Waterblock connected to EK parts.
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post #6964 of 11113
Thread Starter 
Well Shazaaaaaaam Batman . . . . . .

Go to sleep and wake up to pages of electronics arguments, most either irrelevant to brushless motors or just generally wrong, . . Either way, not worth going back thru each to try to correct.


A couple of take-aways,

Almost all DMMs measure current up to 200ma without replugging the leads, and most have a 10A range that requires replugging the + lead into a dedicated hole.

Internally, the 10A range measures the voltage dropped internally across a short, but fairly heavy gage wire between the 10A plug hole and the Com lead

Don't expect more than half an amp accuracy on the 10A range though.

To measure current with a DMM, put the red + lead on the + source and the black - lead on the wire to the load that would normally connect to the source +.

To measure current, the meter must be in series with the load, where with voltage measurement, you just measure in parallel with the load.


Costas has a point about needing a scope and a sensing device to be able to quantify accurately, what is actually going on.

A clamp meter, or even a DMM is going to basically average what transpires every half or quarter second or so.

If you think logically, a PWM pump at 50% duty cycle is going to have a low level draw on the 12V supply all the time to run the electronic circuitry, and then additionally, a significant draw for 20 microseconds at a time, while the motor is powered on.

You'd never see that without a sensing element and a scope


TRUE RMS meters are for sine wave measurements, not pulsed DC, and are accurate at best to ~1KHz, so mention of them was irrelevant to the argument.
post #6965 of 11113
Quote:
Originally Posted by IT Diva View Post

Well Shazaaaaaaam Batman . . . . . .

Go to sleep and wake up to pages of electronics arguments, most either irrelevant to brushless motors or just generally wrong, . . Either way, not worth going back thru each to try to correct.


A couple of take-aways,

Almost all DMMs measure current up to 200ma without replugging the leads, and most have a 10A range that requires replugging the + lead into a dedicated hole.

Internally, the 10A range measures the voltage dropped internally across a short, but fairly heavy gage wire between the 10A plug hole and the Com lead

Don't expect more than half an amp accuracy on the 10A range though.

To measure current with a DMM, put the red + lead on the + source and the black - lead on the wire to the load that would normally connect to the source +.

To measure current, the meter must be in series with the load, where with voltage measurement, you just measure in parallel with the load.


Costas has a point about needing a scope and a sensing device to be able to quantify accurately, what is actually going on.

A clamp meter, or even a DMM is going to basically average what transpires every half or quarter second or so.

If you think logically, a PWM pump at 50% duty cycle is going to have a low level draw on the 12V supply all the time to run the electronic circuitry, and then additionally, a significant draw for 20 microseconds at a time, while the motor is powered on.

You'd never see that without a sensing element and a scope


TRUE RMS meters are for sine wave measurements, not pulsed DC, and are accurate at best to ~1KHz, so mention of them was irrelevant to the argument.

Great explanation Thank you!

I started all of this by stating. I run both of my DDC pump off one header with out issue.

So am I being reckless by powering 2 swiftech MPC X35 pumps from one fan header on my AQ6? The pumps typically run around 50% duty cycle. The pumps do run for 1 second at 100% during system startup. Maybe @soggy can step in and offer some aquacomputer rep stand point. I still do not think this is a big issue to run both. I could be wrong and will trust recognized people with much more experience opinions.

47% power

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post #6966 of 11113
Hi to everyone Overclockers and Watercoolers

I'm in the final steps of perfecting my last huge watercooling build (which I hope to show soon in a buildlog), and it has a lot of Aquacomputer stuff: an Aquaero 6XT, D5, High Flow Sensor, a PowerAdjust 3 and a Farbwerk.
So far, so good on everything but I have just one last doubt on those last 2 components: is there anyway to adjust or to change the brightness of the PA3 and Farbwerks modules front led?
I got to know the Aquaero very well (wonderful machine), and I know the 3 "touch leds" are adjustable and that's really nice. The only thing is that those other 2 LEDs are really disturbing bright... They dont' look that well with the Aquaero too!! At least everything's blue
I searched a bit around the web and the AC forum too but really found any other thread or someone talking about this. I just know it's a 2mm led which is 99% probably removable...
Anyone tried experimented on their poweradjust / farbwerks ??I also thought as a very last solution to remove them both, but that defeats the whole purpose of the thing.
Maybe play around with some lower voltages led bulbs ? I'm sure I'm not the first one which was arguing about this... And this is sure the right place to ask.

Ok, I'll stop talking and attach a picture that shows what I'm talking about. Sorry for the exposure/light of the pic, but that lets you also understand how bright and annoying those things look. No more need for any lighting in my room while computing at night specool.gif



I originally opened another thread in the WC forum, but as also others suggested the best idea is also to post something here.

LINK: http://www.overclock.net/t/1592520/aquacomputer-farbwerk-and-pa3-front-leds-dimmable-interchangeable#post_24935334
post #6967 of 11113
Quote:
Originally Posted by apw63 View Post

Great explanation Thank you!

I started all of this by stating. I run both of my DDC pump off one header with out issue.

So am I being reckless by powering 2 swiftech MPC X35 pumps from one fan header on my AQ6? The pumps typically run around 50% duty cycle. The pumps do run for 1 second at 100% during system startup. Maybe @soggy can step in and offer some aquacomputer rep stand point. I still do not think this is a big issue to run both. I could be wrong and will trust recognized people with much more experience opinions.

47% power


I do not feel that running them as you do is an issue, I meant I would not advise running them at full power on 1 channel, as at 1 channel its more like 36-40ws (and I think an AQ6 isn't suppose to have more than 30ws). I think the AQ, has a high burst wattage, to a lot for the fact that when turned on they pull 24w each so 48, but the AQ is made to handle that.

Quote:
Originally Posted by IT Diva View Post

Costas has a point about needing a scope and a sensing device to be able to quantify accurately, what is actually going on.

A clamp meter, or even a DMM is going to basically average what transpires every half or quarter second or so.

If you think logically, a PWM pump at 50% duty cycle is going to have a low level draw on the 12V supply all the time to run the electronic circuitry, and then additionally, a significant draw for 20 microseconds at a time, while the motor is powered on.

You'd never see that without a sensing element and a scope


TRUE RMS meters are for sine wave measurements, not pulsed DC, and are accurate at best to ~1KHz, so mention of them was irrelevant to the argument.

I was the one to suggest a scope at first, however the convo was about the entire 12v load, the scope was only brought in as a way to measure load with PWM speed changes (honestly really wasn't relevant either smile.gif). What we are looking for is the wattage of the pumps at 100% so PWM shouldn't have ever even came into the convo. It did due to me saying the AQ6s wattage reading is most likely wrong as it cannot accurately read the PWM (although that shouldn't matter at 100%)

It was more so we wanted to know for sure how much wattage at 12v flat not rated down. As his AQ6 is showing 28ws for 2 mcp35xs at full speed (which the AQ is powering at 11v so I think that may be a factor). As everything that I have seen says 20ws each.

Thanks for your input smile.gif, now that your here, have you ever measured a DDC at full load? is it 14ws as the AQ is reading or is it 20ws that every other test I have ever seen says. Also why is the AQ running the pumps at 11v instead of 12v. Oh and +rep for the chime in great post thumb.gif
Edited by Cyber Locc - 2/26/16 at 8:09am
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post #6968 of 11113
Quote:
Originally Posted by Cyber Locc View Post

Warning: Spoiler! (Click to show)
I do not feel that running them as you do is an issue, I meant I would not advise running them at full power on 1 channel, as at 1 channel its more like 36-40ws (and I think an AQ6 isn't suppose to have more than 30ws). I think the AQ, has a high burst wattage, to a lot for the fact that when turned on they pull 24w each so 48, but the AQ is made to handle that.
I was the one to suggest a scope at first, however the convo was about the entire 12v load, the scope was only brought in as a way to measure load with PWM speed changes (honestly really wasn't relevant either smile.gif). What we are looking for is the wattage of the pumps at 100% so PWM shouldn't have ever even came into the convo. It did due to me saying the AQ6s wattage reading is most likely wrong as it cannot accurately read the PWM (although that shouldn't matter at 100%)

It was more so we wanted to know for sure how much wattage at 12v flat not rated down. As his AQ6 is showing 28ws for 2 mcp35xs at full speed (which the AQ is powering at 11v so I think that may be a factor). As everything that I have seen says 20ws each.

Thanks for your input smile.gif, now that your here, have you ever measured a DDC at full load? is it 14ws as the AQ is reading or is it 20ws that every other test I have ever seen says. Also why is the AQ running the pumps at 11v instead of 12v. Oh and +rep for the chime in great post thumb.gif

Depends on which model DDC tongue.gif

post #6969 of 11113
Quote:
Originally Posted by fast_fate View Post

Depends on which model DDC tongue.gif


Ya I agree depends on the model smile.gif, but I said what model mcp35xs which are DDC 3.25s with a custom top. Also yep your pic is in line with what I have seen 20ws smile.gif, well his AQ6 is claiming 14 so something isn't right. However it is also running at 11v at full speed for some reason so maybe that is the issue, as running it at 11vs will lower the wattage how much well I do not think 6ws, but I guess its possible?

Thanks for the Pic thumb.gif
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post #6970 of 11113
Thread Starter 
Quote:
Originally Posted by Cyber Locc View Post

Quote:
Originally Posted by fast_fate View Post

Depends on which model DDC tongue.gif


Ya I agree depends on the model smile.gif, but I said what model mcp35xs which are DDC 3.25s with a custom top. Also yep your pic is in line with what I have seen 20ws smile.gif, well his AQ6 is claiming 14 so something isn't right. However it is also running at 11v at full speed for some reason so maybe that is the issue, as running it at 11vs will lower the wattage how much well I do not think 6ws, but I guess its possible?

Thanks for the Pic thumb.gif


Let's not fail to keep in mind that for the A6 to be able to voltage control its output, that the 12V coming in must go thru at least some circuitry before it shows up on the power pins of the fan headers.

That means there's at least some loss even when the circuitry is putting as much voltage as possible to the fan header, as it would in PWM mode, or in max power mode.

Therein lies the ~11V output to the pump.

That's one issue that you don't have to contend with when you use the pump's molex to the PSU.

As for wattage, let's look at the math . . . .

11V out of 12V is about 92%

If the pump is 20W at 12V, that would be 1.67A

92% of 1.67A is ~1.54A

1.54A times 11V equals 16.9W


That puts it within a reasonable margin of error for the way the A6 measures power, and puts having 2 pumps on a single header at about 34W, which is not likely to hurt the A6, especially if the other channels are lightly loaded and don't add to the cooling burden.

Remember that Shoggy has told us that the A6 could handle 36W per channel with the water block, though that much trouble to gain so little extra capacity doesn't make practical sense.

It still shows that as long as you manage the temps, the 30W limit is not a hard limit.

Running the pumps at less than 100% would put the load well within the load limits of the A6.

Darlene
Edited by IT Diva - 2/26/16 at 11:22am
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