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Better Pumps

post #1 of 32
Thread Starter 
So for my first WC build I used 2 MCP655 pumps in a single loop. Temp wise, these have absolutely done the job. Where they've let me down is with the aesthetics of the plexi case that I threw together. They are advertised as pumping 300 Gph but the reality is nowhere near that. I was expecting enough pressure to push water clear down the top of the case before the waterfall that I built in but it's nowhere close. The water is just tracking the bottom of the run and condensation is hiding the view. I'll try attach a picture here to illustrate it. I'm thinking about replacing one of the 655s with either an ehiem 1262 or an mcp35x. Does anybody have a suggestion for which one to pick?

Here's what it currently looks like:


Here's where I'd like to have the water pushed out to:
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post #2 of 32
Whaatt! Waterfall?

More pics please!
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post #3 of 32
You need more pressure, not flow so the MCP35X will get you there.
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post #4 of 32
Iwaki

/thread
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post #5 of 32
Quote:
Originally Posted by Fuganater View Post

You need more pressure, not flow so the MCP35X will get you there.

I use the MCP35x in a system with 2 restrictive radiators and it runs over 1 GPM at about 40% PWM. At that setting it is quiet as a mouse.
post #6 of 32
Thread Starter 
Thanks everybody! I'll go with the 35x as soon as I ditch one of my 655s
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First WC Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 2700K ASRock Z77 extreme4 680 GTX GSkill Ripjaws 
Hard DriveHard DriveHard DriveOptical Drive
OCZ SSD Corsair SSD Patriot SSD Asus Blu Ray 
CoolingCoolingCoolingCooling
Watercool Heatkiller Rev 3 XSPC RS240 Swiftech MCP655-B Corsair Dominator fans for the ram 
OSMonitorPowerCase
Win 7 x64 Ultimate SyncMaster 305T OCZ 1000W Antec 300 
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post #7 of 32
Quote:
Originally Posted by OC Dev View Post

Thanks everybody! I'll go with the 35x as soon as I ditch one of my 655s

Two D5s = 1 35x. So if you want double that flow you'd want another 35x, ala 35x2. Well, that is unless there's something specifically wrong with your dual d5, so if there's not and it's just too weak, the first point remains.

Quote:
Originally Posted by Rognin View Post

Iwaki
/thread

50w heat dump into the loop, yikes!
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post #8 of 32
Thread Starter 
Yeah, 35x2 is what I meant. I was just saving keystrokes:D
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OCZ SSD Corsair SSD Patriot SSD Asus Blu Ray 
CoolingCoolingCoolingCooling
Watercool Heatkiller Rev 3 XSPC RS240 Swiftech MCP655-B Corsair Dominator fans for the ram 
OSMonitorPowerCase
Win 7 x64 Ultimate SyncMaster 305T OCZ 1000W Antec 300 
  hide details  
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CPUMotherboardGraphicsRAM
i7 2700K ASRock Z77 extreme4 680 GTX GSkill Ripjaws 
Hard DriveHard DriveHard DriveOptical Drive
OCZ SSD Corsair SSD Patriot SSD Asus Blu Ray 
CoolingCoolingCoolingCooling
Watercool Heatkiller Rev 3 XSPC RS240 Swiftech MCP655-B Corsair Dominator fans for the ram 
OSMonitorPowerCase
Win 7 x64 Ultimate SyncMaster 305T OCZ 1000W Antec 300 
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post #9 of 32
Quote:
Originally Posted by tsm106 View Post

Two D5s = 1 35x.

Not according to martin's testing.
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post #10 of 32
Quote:
Originally Posted by BababooeyHTJ View Post

Not according to martin's testing.


In general terms, there's only 2psi difference between a RP452x2 w/ two PMP450 P5 and one 35x. Now add up the difference in cost of running dual D5's in that config... ouch.
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