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EK-DDC and MCP35x - Page 5

post #41 of 46
Quote:
Originally Posted by skinnee;12318359 
LOL. Again, no circuitry change.

Chip programming change perhaps??biggrin.gif

A curved RPM regression rather than one that is linear?

Something is different.

There is really nothing more to the energy in a pump but the speed of the impeller. If the impeller are identical and the PQ curve is different with the same top...there must be a difference in the programming of the RPM protection.

I'm not sure if it's controlling based on RPM or current sensing, but something along those lines.

Where is jayhall when we need him..smile.gif
Edited by Martinm210 - 2/8/11 at 10:59pm
    
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post #42 of 46
Martin knows my subtle ways of saying things without saying too much. wink.gif
Edited by skinnee - 2/8/11 at 11:03pm
post #43 of 46
Sorry I do not mean to necro this thread, but I have a couple questions about running two MCP-35X pumps with a EK-DDC Dual Top. First, is this the correct top? EK-DDC Dual TOP V.2 G1/4 - Black Acetal and second. How do you connect both pumps to the CPU Header on the MoBo to control them?
Edited by Taergeno - 4/20/11 at 8:30pm
post #44 of 46
Quote:
Originally Posted by Taergeno;13210523 
Sorry I do not mean to necro this thread, but I have a couple questions about running two MCP-35X pumps with a EK-DDC Dual Top. First, is this the correct top? EK-DDC Dual TOP V.2 G1/4 - Black Aceta and second. How do you connect both pumps to the CPU Header on the MoBo to control them?

Yes that should work fine..any top compatible with a DDC/MCP35/PMP400 will work for the 35x, and you would need a PWM splice to control both pumps from one PWM MB header or some of the higher end motherboards come with more than one.

Then you will need to use either your motherboard software like Gigabyte Easy Tune 6, or Asus to control the PWM settings....OR use Speedfan to control the PWM output.

The large molex connector for each pump just plugs into the power supply molex connections.

Molex is what feeds the pumps power.
4pin fan header with blue/green is just for the PWM signal feed and RPM signal back to the MB..no power comes from the MB...it's all from those molex connectors.
    
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post #45 of 46
Aaah awesome. I currently just have a single MCP35X and its connected to the PWM and I have some setting set in the BIOS that adjusts the speed based on temperature. Is this fine? Or should I try to find some sort of in-windows software to control it? I have the EVGA Classified3 MoBo.
post #46 of 46
Quote:
Originally Posted by Taergeno;13210721 
Aaah awesome. I currently just have a single MCP35X and its connected to the PWM and I have some setting set in the BIOS that adjusts the speed based on temperature. Is this fine? Or should I try to find some sort of in-windows software to control it? I have the EVGA Classified3 MoBo.

I would check on EVGA's site, they might have some good software, not sure though.

As long as you're happy with the Bios control, that should work though. Speedfan isn't exactly robust in control either. It basically allows you to pick a temperature and lower/upper PWM setting. Gigabyte and Asus allow you to create a nice sloped ramp up/down over a range of temperatures.

My MSI sucks bad on PWM control (I basically only have manual control 50%, 75%, 100%...that's it...pathetic..frown.gif ) Because of that.. I've had to resort to speedfan just to make something work.
    
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