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[Build Log] Merlin (Water Cooled r-atx SM8 w/dual Pedestals / Z97X-UD5H) - Page 29

post #281 of 2434
Quote:
Originally Posted by mandrix View Post


~ snip~

Also if anyone has run led's from the 15khz power outputs on an Aquaero give me some tips please.I did a simple test where I wired up one led w/resistor and could not get it to light up. 15khz should be OK for led's, yes?


I can probably help you out on this, but I'll need more info . . . .


Can you give me more info on the output of the aquaero, . . .

15khz sounds like a PWM base frequency, that would change duty cycle to effect control.

How big of a resistor did you try with it?

What is the output supposed to output to?

All the info you can give me will help.

I guess you don't have a scope, do you?

Knowing the P-P voltage and if it's a square wave, (as I expect) would indicate if it's a power source, or only a control signal for a driver PCB.



Darlene
post #282 of 2434
YaAY! silly scopes raises its head
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post #283 of 2434
Thread Starter 
Quote:
Originally Posted by IT Diva View Post

I can probably help you out on this, but I'll need more info . . . .
Can you give me more info on the output of the aquaero, . . .
15khz sounds like a PWM base frequency, that would change duty cycle to effect control.
How big of a resistor did you try with it?
What is the output supposed to output to?
All the info you can give me will help.
I guess you don't have a scope, do you?
Knowing the P-P voltage and if it's a square wave, (as I expect) would indicate if it's a power source, or only a control signal for a driver PCB.
Darlene
There isn't much info about it , Darlene. I was hoping someone who has the software can tell me what I'm doing wrong as I can't get the outputs to turn on. Of course I'm trying to MIckey Mouse the connections, I don't have any connectors that fit, I just crimped some pins on the led (comes with resistor) and shoved over the connectors.The middle bottom is where the 15kHz pwm outputs are. I probably ought to order some connectors from Aquacomputer, I've never seen any to fit these.


http://martinsliquidlab.org/2011/12/20/ac-aquaero-5-review-guide-wip/
Edited by mandrix - 11/21/12 at 2:43am
post #284 of 2434
Thread Starter 
socketus, here's a pic of the acrylic rod I used.


I cut two pieces, stacked them together and drilled holes for the res mounts, then drill holes in the case and used some #6-32 screws long enough to attach to the case. The actual mounts that came with the res are being used, all I did was use the rod to push it out further from the side of the case.
Gives it a "floating" look as the clear mounts are hard to see unless you can look below/behind the res. Was actually one of the first things I did.
You knew I had to work some acrylic in somewhere, didn't you? wink.gif
post #285 of 2434
Looking good Mandrix, everything looking good. Loving this build. guitar.gif
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post #286 of 2434
Quote:
Originally Posted by mandrix View Post

There isn't much info about it , Darlene. I was hoping someone who has the software can tell me what I'm doing wrong as I can't get the outputs to turn on. Of course I'm trying to MIckey Mouse the connections, I don't have any connectors that fit, I just crimped some pins on the led (comes with resistor) and shoved over the connectors.The middle bottom is where the 15kHz pwm outputs are. I probably ought to order some connectors from Aquacomputer, I've never seen any to fit these.

http://martinsliquidlab.org/2011/12/20/ac-aquaero-5-review-guide-wip/


Looks like you just need help on the software side, . . .

Being it's labelled 12V PWM, it's reasonable to assumre it's to run a pump or much more probably, fans.

Use a resistor between 470 ohms and 1K ohms, and you should have LED function thru almost all the PWM range from about 10% to 20% and up.

Be sure to try the LED in the opposite polarity if it doesn't wotk the first way you hook it up.


Darlene
post #287 of 2434
Quote:
Originally Posted by mandrix View Post

socketus, here's a pic of the acrylic rod I used.

I cut two pieces, stacked them together and drilled holes for the res mounts, then drill holes in the case and used some #6-32 screws long enough to attach to the case. The actual mounts that came with the res are being used, all I did was use the rod to push it out further from the side of the case.
Gives it a "floating" look as the clear mounts are hard to see unless you can look below/behind the res. Was actually one of the first things I did.
You knew I had to work some acrylic in somewhere, didn't you? wink.gif

SweeT ! and thanks ! My turky day before Turkey Day wink.gif
I bought some small acrylic sheets to try out as a pump mount on a square made of rails, but was puzzling over whether a same thin strip would do for mounting my res across the span of the hd tower.
Hadn't delved that much in different acrylic shapes, looks perfect, and THANKS for sharing thumb.gif
Thats plenty of info, I appreciate the effort you made, and it should get me down the road
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post #288 of 2434
Thread Starter 
Quote:
Originally Posted by TPE-331 View Post

Looking good Mandrix, everything looking good. Loving this build. guitar.gif

Thank you!
Quote:
Originally Posted by IT Diva View Post

Looks like you just need help on the software side, . . .
Being it's labelled 12V PWM, it's reasonable to assumre it's to run a pump or much more probably, fans.
Use a resistor between 470 ohms and 1K ohms, and you should have LED function thru almost all the PWM range from about 10% to 20% and up.
Be sure to try the LED in the opposite polarity if it doesn't wotk the first way you hook it up.
Darlene
Yeah it's a software thing. Or maybe out of all the led's I have around here I picked one that doesn't work. The outputs are 12v/1A 15kHz, I can't imagine off hand what they were thinking with that freq. I would think you would want much higher pwm for pumps and fans? The only type of control you have is % power from 0-100, so you are not going to actually use the pwm to control anything. Basically it's a two pin output.
Quote:
Originally Posted by socketus View Post

SweeT ! and thanks ! My turky day before Turkey Day wink.gif
I bought some small acrylic sheets to try out as a pump mount on a square made of rails, but was puzzling over whether a same thin strip would do for mounting my res across the span of the hd tower.
Hadn't delved that much in different acrylic shapes, looks perfect, and THANKS for sharing thumb.gif
Thats plenty of info, I appreciate the effort you made, and it should get me down the road
You are welcome. Hope it gives you some ideas. The square rod is about the only shape of acrylic I've found that I could see a structural use for, although you can certainly get all sizes and shapes.
The 3/16" & 1/4" acrylic sheet is pretty sturdy, when you get down to 1/8" you may want to make sure it's supported well before you put much weight on it.
What pump are you using?
post #289 of 2434
hmmm, you gonna prod me into starting a log ..... wink.gif

mcp35x2 - I dunno what got into me, but I certainly know what left my wallet tongue.gif - I imagine it was the redundancy feature, coz with only the cpu and a single gpu under water, with a few 90degree fittings, this pump is way overqualified. Maybe I wasn't seeing so many, and I compensated. Between your build and PCModderMike's use of beautifully topped D5 type pumps, I just didn't see a reason to try it, and look at the amount of money spent on this mcp duallie. I'll take some newer pix and start a log, so I can at least give you all another place to surf to and "critique" and offer advice and generally have a good time :-)
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post #290 of 2434
Standard for PC PWM is 25khz.

15khz seems a bit low, since it may be in some peoples' audible hearing range.

Be sure to use resistors on your leds, since they have near instant response time, relative to the relatively long duration pulse of a 15khz source and would fry on anything but ne zero pulse width.


Darlene
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