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Multiple rads, and multiple blocks... D5 or MCP35X2-BK?

post #1 of 37
Thread Starter 
I am currently working on a build (in my sig)... I have three radiators (2x Alphacool ST30 280's, and a Alphacool Monsta 80mm 420). I will be using a EK Supremacy CPU block, and three EK 780Ti waterblocks. I was also going to use a Parallel EK terminal to hook the three GPU waterblocks together.. which I know will drop pressure a good bit.

I was planning on using a single Swiftech MCP655-PWM-DRIVE (D5) on a Monsoon Res to push the coolant. But some more research makes me wonder if that pump will have enough "head" to do it.

Should I be looking at something like the MCP35X2-BK instead?

I have always used a single D5 in the past... but never used this many rads / blocks before.

I haven't started bending tubing yet... and would prefer to get it right the first time.

Appreciate any advice given.
Edited by cgipson1 - 3/3/14 at 11:26pm
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post #2 of 37
Quote:
Originally Posted by cgipson1 View Post

I am currently working on a build (in my sig)... I have three radiators (2x Alphacool ST30 280's, and a Alphacool Monsta 80mm 420). I will be using a EK Supremacy CPU block, and three EK 780Ti waterblocks. I was also going to use a Parallel EK terminal to hook the three GPU waterblocks together.. which I know will drop pressure a good bit.

I was planning on using a single Swiftech MCP655-PWM-DRIVE (D5) on a Monsoon Res to push the coolant. But some more research makes me wonder if that pump will have enough "head" to do it.

Should I be looking at something like the MCP35X2-BK instead?

I have always used a single D5 in the past... but never used this many rads / blocks before.

I haven't started bending tubing yet... and would prefer to get it right the first time.

Appreciate any advice given.

Given the GPUs will all be in parallel you should be fine with a single D5, but if you want to go overkill, and with three 780TIs I'm assuming you do, you could always go for the MCP35x2 or the PMP500. PMP 500 will be WAY more price/performance friendly, outperforms the MCP35x2 easily, but it's LOUD so don't go that route if it's a quiet build.
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post #3 of 37
Why don't you wait until the end of this month and see what the Swiftech MCP50X can bring? According to Swiftech, it has more head pressure than the 35X and is to be less expensive. I'm sure there will aso be an MCP50X2 if you need it.
post #4 of 37
Thread Starter 
Quote:
Originally Posted by ZytheEKS View Post

Given the GPUs will all be in parallel you should be fine with a single D5, but if you want to go overkill, and with three 780TIs I'm assuming you do, you could always go for the MCP35x2 or the PMP500. PMP 500 will be WAY more price/performance friendly, outperforms the MCP35x2 easily, but it's LOUD so don't go that route if it's a quiet build.

I appreciate it! Overkill is good... and quiet is good! I do like the dual pump feature on the MCP35x2 ... redundancy is always good too!

but if you think the D5 will cut it... I will probably go that route, since I already have the pump and res. But I do get impulsive sometimes... wink.gif

Now you have me curious about "the Russian Winter"! thumb.gif
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post #5 of 37
Thread Starter 
Quote:
Originally Posted by EpicFruit View Post

Why don't you wait until the end of this month and see what the Swiftech MCP50X can bring? According to Swiftech, it has more head pressure than the 35X and is to be less expensive. I'm sure there will aso be an MCP50X2 if you need it.

Mainly because I wasn't even aware that Swiftech was bringing out a new pump, lol! Thanks for that info... and since I am not in a huge rush to get this thing finished, I will wait and see.

Thank you!

(heads off to google MCP50X!)
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post #6 of 37
You're quite welcome! I think it's about time to bring the MCP50X to the WCing community's attention, it's just around the corner, and could be a real game changer if it really is "substantially" cheaper than the MCP35X.

From everything I've been able to find so far, I've learned that it is produced in-house by Swiftech, which may explain the lower price, but the exact MSRP has not been set. It debuted at CES 2014, where it proved to be more powerful than the MCP35X in a live demonstration. According to the media that visited the Swiftech suite at CES 2014, the MCP50X is about on par with the MCP35X in terms of noise, but runs noticeably cooler. Lastly, I learned from a Swiftech rep that the MCP50X will not be compatible with existing DDC tops and mods. Right now the only known component to be compatible with the MCP50X is the upcoming Maelstrom V2.
post #7 of 37
I have an EK D5 with plexi head running the following:
6x XTX480 rads
1x XT360 Rad
1x Supramacy CPU Block
1x EK RIVBE Block
4x290x Plexi blocks in Semi-Parallel fow.

The pump is sufficient if you are running low restriciation blocks and in parallel.
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post #8 of 37
Oh as a side note, I have been waiting for the MCP50X + Maelstrom V2 since I learned of its existence. But due to budget constraints, and the fact that I am only building a CPU loop with one block and two rads, a DDC-1T for $35 was just too good to pass up. bmaverick is selling a batch of brand new original DDC-1T pumps for $35 each shipped in the US, and $30 each for orders 2 or more.
post #9 of 37
Quote:
Originally Posted by cgipson1 View Post

I appreciate it! Overkill is good... and quiet is good! I do like the dual pump feature on the MCP35x2 ... redundancy is always good too!

but if you think the D5 will cut it... I will probably go that route, since I already have the pump and res. But I do get impulsive sometimes... wink.gif

Now you have me curious about "the Russian Winter"! thumb.gif

It's a nickname my friend gave my system because he thinks overkill cooling is entirely unnecessary. XD Won't truly be the russian winter till I order my TEC waterblock from Fox and get my TEC controllers from Krow. biggrin.gif

Anyways, whether it will be enough is depending no what kind of flowrates you want. Three blocks in parallel will give you precisely 1/3 flowrate through each block. So if you're shooting for 1 gallon per minute, or about 225liters per hour if you're metric, you should be able to manage.
Take a look at this graph.




At 1/3 the 225LpH you will have around a 20-25mbar pressure drop, or in non annoying talk .3PSI pressure drop. That means the graphics cards will give you around .9 psi pressure drop which is actually .2PSI LESS than one block @ 1gallon per minute, or 225liters per hour if you're metric.

@ 100% a single D5 will probably give you slightly over 1GPM, but keep in mind each video card waterblock will only get 1/3 that flow, so it's up to you whether you're okay with that little flow through a video card waterblock.
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post #10 of 37
Quote:
Originally Posted by EpicFruit View Post

You're quite welcome! I think it's about time to bring the MCP50X to the WCing community's attention, it's just around the corner, and could be a real game changer if it really is "substantially" cheaper than the MCP35X.

From everything I've been able to find so far, I've learned that it is produced in-house by Swiftech, which may explain the lower price, but the exact MSRP has not been set. It debuted at CES 2014, where it proved to be more powerful than the MCP35X in a live demonstration. According to the media that visited the Swiftech suite at CES 2014, the MCP50X is about on par with the MCP35X in terms of noise, but runs noticeably cooler. Lastly, I learned from a Swiftech rep that the MCP50X will not be compatible with existing DDC tops and mods. Right now the only known component to be compatible with the MCP50X is the upcoming Maelstrom V2.

Damn, you had me excited there for a second. I was thinking about selling off my MCP35xs and installing 3 MCP50xs in my XSPC DDC x3 acrylic top. Now THAT would be something.
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