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Can I put a 2nd pump in my loop that activates when the pressure drops too low or stops? - Page 9

post #81 of 96
Pretty much only ROG series Asus boards have headers for temperature sensors
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post #82 of 96
Thread Starter 
MSI 990fxa-gd80 mobo running fx-8350 and dual 7770's in cf with 4 two gig sticks of dominator ram 1866 with h2o adapter.All mobo sinks will be swapped out for h2o blocks including mosfets, and both bridges. And true, no lives will be loast if the computer shuts down yes, but that is not the question and/or reason for trying to do this it's if it can be done. If it isn't possible or is too risky to my hardware, themn so be it. I do know that at work we have triple rerdundant systems in place for much more critical systems (not computers) which offer a very high risk for explosion if temperature or pressure rise occurs too fast so I believe it can be done here. I do appreciate all of the great ideas, fellas! The pumps I have (came in friday) are two mcp350 1t's with the 3-pin in addition to the molex if that helps. For some reason, the more that I look at the design that I have crudely drawn for the loop, the more it appears there are good reasons to run two active pumps (i.e. 8 water blocks).
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post #83 of 96
Thread Starter 
I wonder if my old fatality 990fx mobo has temp sensors? Gotta get it back off loan and see....lol
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post #84 of 96
Quote:
Originally Posted by oldcompgeek View Post

MSI 990fxa-gd80 mobo running fx-8350 and dual 7770's in cf with 4 two gig sticks of dominator ram 1866 with h2o adapter.All mobo sinks will be swapped out for h2o blocks including mosfets, and both bridges. And true, no lives will be loast if the computer shuts down yes, but that is not the question and/or reason for trying to do this it's if it can be done. If it isn't possible or is too risky to my hardware, themn so be it. I do know that at work we have triple rerdundant systems in place for much more critical systems (not computers) which offer a very high risk for explosion if temperature or pressure rise occurs too fast so I believe it can be done here. I do appreciate all of the great ideas, fellas! The pumps I have (came in friday) are two mcp350 1t's with the 3-pin in addition to the molex if that helps. For some reason, the more that I look at the design that I have crudely drawn for the loop, the more it appears there are good reasons to run two active pumps (i.e. 8 water blocks).

Well, if you have two pumps running then that is a completely different story.

And my idea of the mcp35x triggered by a loop temp sensor would not work well on second thought because the sensor would detect heat, the pump turns on, and the recorded temp rise would drop almost right away as the pump starts. So the speedfan would again stop the pump because the temp lowered again, and the cycle of pump start/stop would repeat.
With two pumps, you have them both connected to the Lamptron Touch, monitoring rpm. Should one pump stop or slow down, then the Lamptron could either sound an alarm or flash a warning on the screen, your choice.

So in the event of a single pump failure, your Touch beeps or flashes a warning while the other pump keeps everything running at about 30% slower flow rate. And this way, your rig wont explode. biggrin.gif
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post #85 of 96
Quote:
Originally Posted by Jakusonfire View Post

Don't try to run water pumps with a bitfenix Recon. Its not designed for those types of load

Thanks Jakusonfire, the power ratings on the box were incorrect (30w per channel is actually 10w per channel)- have updated my original post with a disclaimer regarding the suitability of fan controllers/importance of working things out and keeping within rated specs.
post #86 of 96
Thread Starter 
I like the overall idea though. I'm sure there has to be a higher wattage controller out there somewhere. I mean, aren't there any big 'ol servers somewhere that are water cooled and need some form of redundancy? lol c'mon guru's someone has to thought of it for some application type and designed it....
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post #87 of 96
Aquaero 5 LT can do what you want, connect rpm wire of pump one to a fan header and connect pump two's power through the relay header, define an alarm if fan header has no rpm signal for 6 seconds and define an alarm action that switches the relay on
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post #88 of 96
Thread Starter 
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=36_48&products_id=32432

I do believe, I finally have a winner.... This should do the job. It's supposed to be optimized for controlling laing ddc pumps....
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post #89 of 96
Quote:
Originally Posted by oldcompgeek View Post

I like the overall idea though. I'm sure there has to be a higher wattage controller out there somewhere. I mean, aren't there any big 'ol servers somewhere that are water cooled and need some form of redundancy? lol c'mon guru's someone has to thought of it for some application type and designed it....

The mcp35 pumps are rated at18w while each Lamptron Touch channels are rated at 30w. That is plenty for your needs. Why would you want/need a higher wattage rating on the controller? Just run each pump on it's own channel, the Touch has 6 channels.
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post #90 of 96
Quote:
Originally Posted by oldcompgeek View Post

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=36_48&products_id=32432

I do believe, I finally have a winner.... This should do the job. It's supposed to be optimized for controlling laing ddc pumps....
I find those Aquaero components to be rather overpriced. For 50$ you get that one single 25w channel controller. Not cheap if you consider for less than double the price, the Lamptron will give you 6 channels each rated at 30w for a total of 180w instead of a single 25w channel for a total of, well, 25w.

Furthermore, the Aquaero line is all undervolting controllers, like most other controllers out there. Except for the Lamptrom line, which are power modulaling controllers. Here I explain the difference:
http://www.overclock.net/t/1337093/use-fan-controller-for-pump-controller/20#post_18817734
And make sure to read the whole thread there.

I mean the flagship Aquaero controller is their 5 usb for almost 220$.
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=36_48&products_id=31993
They don't even bother to list wattage per channel, ask yourself why.
You can upgrade it's wattage by getting a waterblock for it because it produces so much damn heat. And even then, it still won't operate a quarter of the Touch's total wattage.

Even witb a 30$ waterblock on it, you still only have 20w per channel and here is the kicker: you can't run even more then 60w total.

With those undervolting controllers, you always have to worry about heat because they all produce a lot of heat. So buyer beware.
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