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do I need a second pump?

post #1 of 10
Thread Starter 
I have the mcp655 pumping 2 mcw80's, heatkiller 3.0, and a mcr320...

I want to add another mcr220 to the mix to lower the temps a bit.

should I split the gx cards into their own loop and the cpu to it's own loop, or

just add a mcr220 to the current loop?
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CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
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2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
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my stuff
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CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
Hard DriveCoolingOSMonitor
2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
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Logitech wave  corsair 1000 Corsair Air 540 Black  Razor  
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post #2 of 10
If you can afford to do another loop to cool your gpu's you will get the best results by far.Not sure about the extra pump thing,but if you can do it a seperate loop is the way to go for sure.
post #3 of 10
Thread Starter 
Well, the second pump thing is the second loop.

But, I am hoping to be able to just get the second rad, and not have to do 2 loops with two pumps..(:
my stuff
(14 items)
 
  
CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
Hard DriveCoolingOSMonitor
2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
KeyboardPowerCaseMouse Pad
Logitech wave  corsair 1000 Corsair Air 540 Black  Razor  
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my stuff
(14 items)
 
  
CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
Hard DriveCoolingOSMonitor
2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
KeyboardPowerCaseMouse Pad
Logitech wave  corsair 1000 Corsair Air 540 Black  Razor  
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post #4 of 10
That pump is way powerful enough to do that.

You can run 2 more rads in that loop and that power house of a pump will be just fine.

No reason to run two loops.
post #5 of 10
Thread Starter 
thanks for the opinions...+rep for you both and all who give their opinion!
my stuff
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CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
Hard DriveCoolingOSMonitor
2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
KeyboardPowerCaseMouse Pad
Logitech wave  corsair 1000 Corsair Air 540 Black  Razor  
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my stuff
(14 items)
 
  
CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
Hard DriveCoolingOSMonitor
2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
KeyboardPowerCaseMouse Pad
Logitech wave  corsair 1000 Corsair Air 540 Black  Razor  
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post #6 of 10
I'd recommend not going dual loops, just go with another rad, there is actually no difference in having two different loops or just an extra rad. And yes, that pump will be be able to handle an extra rad no problem.
post #7 of 10
Quote:
Originally Posted by methos123 View Post
thanks for the opinions...+rep for you both and all who give their opinion!
Not an opinion just facts here... that pump is smoking fast, I think it does better when it has multiple rads in the loop.

WHY!? because it is so fast that if you could pump water to fast over the blocks and it could can create air bubbles and not be as effective... I have seen this and there was a video of it going around for a while around here, see if I cant find it, but don't wait for me

For a huge loop they are great pumps, for a small loop they can be doom, or just plan overkill. Which a lot don't seem to understand and buy it any ways to just cool there CPU.

Now the "B" version of this pump is GREAT for all loops, because you can adjust the speed, for smaller loops turn it down, the bigger the loop the faster you can pump. Also just nice because you can fine tune the speed needed for your loop.
post #8 of 10
you dont need a seperate pump unless you want to make it 2 individual loops
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HeatKiller
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by Satogd View Post
you dont need a seperate pump unless you want to make it 2 individual loops
I'm sorry, I can't give a rep for this.
my stuff
(14 items)
 
  
CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
Hard DriveCoolingOSMonitor
2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
KeyboardPowerCaseMouse Pad
Logitech wave  corsair 1000 Corsair Air 540 Black  Razor  
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Reply
my stuff
(14 items)
 
  
CPUMotherboardGraphicsRAM
core i7 920 Asrock Z68 professional Gen. 3.0 Fatality edition  EVGA GTX 580 Black Ops  12Gb Corsair 1600 
Hard DriveCoolingOSMonitor
2 640's in raid 0, 1.5 tb backup Heatkiller 3.0 with MCR220QP  win. 7 x64 28" I-Inc 
KeyboardPowerCaseMouse Pad
Logitech wave  corsair 1000 Corsair Air 540 Black  Razor  
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Reply
post #10 of 10
I would stick with a single loop over a dual loop, it will give better temperatures and it will be much easier to manage. As far as adding the radiator goes I think you should be fine as the 655 is a very strong pump, and radiators don't add much restriction anyways. For example, most waterblocks add in pressure drops in the range of 0.8-1.5 PSI, whereas most radiators present less than 0.2 PSI of drop.

You'll be fine to just add the second radiator, no need to spend any more money.
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Labor of Love
(14 items)
 
  
CPUMotherboardGraphicsRAM
2600k @ 5.0 GHz/1.42v ASUS P8P67 Pro MSI GTX 670 OC 20 GB/1600/7-7-7-24 
Hard DriveHard DriveOptical DriveOS
120GB Vertex SSD Western Digital 1TB None! Ubuntu 12.04/Win8/OSX 10.8.2 
MonitorKeyboardPowerCase
27" 1440p X-Star OCN Mechanical - MX Browns Seasonic X-560 800D w/RX480 top mounted 
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Logitech USB Generic 
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