Overclock.net › Forums › Cooling › Water Cooling › loop questions (2 CPUs)
New Posts  All Forums:Forum Nav:

loop questions (2 CPUs)

post #1 of 15
Thread Starter 
Hey again guys. I am looking for some loop order advice.

Here are the items in the loop:

-cpu (5660)#1
-cpu (5660)#2
-gfx card (gtx 590)
-motherboard (sr-2)
-pump (swiftech)
-reservoir
-480 radiator #1
-480 radiator #2
-480 radiator #3

I understand that the common loop order is:
res>pump>cpu>otherStuff>rad>res
The problem is that I have 2 CPUs, which are my primary concern. I have read that some people suggest that I go cpu>rad>cpu2>rad>etc..
I understand the logic in that, but if I do that, I will end up having some "back-tracking" in my loop. I will have tubes going back and forth across the case if I do that, because of the radiator locations and such.
I was wondering if it will hurt my 2nd cpu temps much if I just go cpu1>cpu2. I was also wondering if doing this backtracking from cpu to rad and back and the extra tubing paths will cause potential issues. Thanks guys!
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
post #2 of 15
....

I would have thought having 3 rad's in sucession would be pretty pointless. Also, you're going to need a LOT of pressure to get the fluid round.

I'd probably go

Res - Pump - Rad1 - CPU1 - CPU2 - Rad - Motherboard - GPU- Res

You really don't need 3 rads
post #3 of 15
The temperature of the coolant wont change by more than 0.5oC



When you think about it like that running into one CPU and then into the other, one will end up 0.5oC hotter than the other, a change you probably wont even be able to see in actual CPU temps.


As for the amount of radiators you have there... I don't think you'll see any benefit at all after 5 120mm fans worth of rad.


A 360 and a 240 will cool all of that heat. If you want an overkill radiator though, you might want to look at a 3 x 3 radiator like this:

http://specialtech.co.uk/spshop/cust...pid-12098.html
    
CPUMotherboardGraphicsRAM
e5645 @ 4.2Ghz P6X58D-E 5450 x2 6Gb Corsair Dominator 1600 
CoolingOSPowerCase
ALPENFOHN K2 Windows 7 Pro Antec Truepower Trio 650W Dell Optiplex 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
e5645 @ 4.2Ghz P6X58D-E 5450 x2 6Gb Corsair Dominator 1600 
CoolingOSPowerCase
ALPENFOHN K2 Windows 7 Pro Antec Truepower Trio 650W Dell Optiplex 
  hide details  
Reply
post #4 of 15
Thread Starter 
Thanks for the info. I have the rads all setup and all that. This is a for-fun kind of thing. Of course I don't need a million radiators, but I want them. The temp information is really helpful
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
post #5 of 15
Whilst you want them it's completely pointless. You'd need a rad with a lot of head pressure to get around.

You could end up screwing the performance of your loop.

Comps
post #6 of 15
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
Whilst you want them it's completely pointless. You'd need a rad with a lot of head pressure to get around.

You could end up screwing the performance of your loop.

Comps
You are missing the point of this thread
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
post #7 of 15
I think everyone is missing the point of this thread,

Also

"You'd need a rad with a lot of head pressure to get around."

I mean a pump with a lot of head pressure.

C
post #8 of 15
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
I think everyone is missing the point of this thread,

Also

"You'd need a rad with a lot of head pressure to get around."

I mean a pump with a lot of head pressure.

C
Gotcha. I will just figure it out and post update when I'm done to help others
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
2016
(4 items)
 
  
CPUMotherboardGraphicsHard Drive
6700k asus viii hero PNY GTX 1080 XLR8 Samsung 950 
  hide details  
Reply
post #9 of 15
Radiators don't add any real restriction to your loop. A single pump should handle the loop fine and the slight decrease in flow rate will easily be counteracted by the lower water/air delta. Having more radiators means lower temps and quieter fans.
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 
Mouse
Logitech USB Generic 
  hide details  
Reply
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 
Mouse
Logitech USB Generic 
  hide details  
Reply
post #10 of 15
Once again those without experience with that complex of a system give suggestions (thanks for helping clarify the truth charlie)...

Run dual 655s or 355s with the dual pumptop, but a single 355 with pumptop or 35X can handle it no problem. That will allow for the head pressure to be high enough throughout the entirety of the loop. Radiators do not cause much restriction so even if you put 10 of them back to back a single pump could handle them if only with a single block. 3x 480 rads in succession will lead to the lowest cpu temps if run like this:

res > 2x pump >rad> rad>rad>cpu>gpu>res
cpu>
you will want to put a split in after the last rad so that both cpus will get the same temp water. After the cpu put another split back in in order to bring the water from both gpus back to the cpu. You will notice the difference with that much radiator compared to half as much (suggested above). Temps won't scale perfectly (obviously) but there is a noticeable difference when overclocking and with load temps. I'm assuming that cpu temps are what's most important to you so having all of ur rads before your cpus is the most beneficial.

I went from a 6x120 rad area to a 12x 120 rad area and the temps are like night and day. I would not run my setup again off of such little radiator area. My next build is having a total of 16x 140mm rad area. You want as close to ambient water temps as you can get and until you get there more radiator is not overkill.
 
Project Atlantis
(16 items)
 
 
CPUMotherboardGraphicsRAM
i7 3960X w/ EK Supreme HF  Asus Rampage IV Extreme w/ EK full cover Tri SLi EVGA GTX TITAN SC w/ EK full cover & Ba... 64 GB Dominator w/ MIPS Ram Cooler 
Hard DriveHard DriveCoolingCooling
1TB Samsung EVO 850 2x 2TB Western Digital Caviar Black 1x Hardware Labs Black Ice GTX 560  Bitspower Pump Upgrade Kit 
CoolingCoolingCoolingCooling
2x Hardware Labs Black Ice GTX 280 Hardware Labs Black Ice GTX 480 Dual Uber MCP655 Noiseblocker PK-3  
CoolingCoolingCoolingOS
Bitspower Compression Fittings Lamptron FC-8 Noiseblocker PL-2 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Asus PB287Q 4K Steelseries 7G Custum wired EVGA NEX 1500 Caselabs SMA8 
MouseMouse Pad
Rat 7 Razer Goliathus XL 
CPUMotherboardGraphicsRAM
i7 920 c0 @ 4.2 Ghz w/ 1.4v max 4.6ghz @1.55v w... Asus P6T6 WS Revolution w/ koolance nb/sb+mosfe... EVGA GTX 480 x3 w/ Koolance Vid-NX480 12gb Corsair Dominator 1600mhz w/ MIPS Ramcooler 6 
Hard DriveOptical DriveCoolingOS
1.5 Tb Seagate barracuda x3 LG Bluray Burner 2x SR1 360, RX 360, SR1 240, SR1 120, 2x MCP355... Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung t260 x3 Razer Black Widow Ultimate Silverstone st1200 Mountain Mods U2UFO w/ MM Pedestal Addition 
MouseMouse PadAudioAudio
Razer Mamba Razer Destructor X-Fi Fata1ity Logitech Z-5500 
CPUGraphicsRAMHard Drive
i7 3840QM 650ti 8GB 1333mhz DDR3 256gb ssd 
OSMonitorPowerCase
OSX Mountain Lion Retina Display 85w Magsafe Power Adapter Aluminum Unibody 
  hide details  
Reply
 
Project Atlantis
(16 items)
 
 
CPUMotherboardGraphicsRAM
i7 3960X w/ EK Supreme HF  Asus Rampage IV Extreme w/ EK full cover Tri SLi EVGA GTX TITAN SC w/ EK full cover & Ba... 64 GB Dominator w/ MIPS Ram Cooler 
Hard DriveHard DriveCoolingCooling
1TB Samsung EVO 850 2x 2TB Western Digital Caviar Black 1x Hardware Labs Black Ice GTX 560  Bitspower Pump Upgrade Kit 
CoolingCoolingCoolingCooling
2x Hardware Labs Black Ice GTX 280 Hardware Labs Black Ice GTX 480 Dual Uber MCP655 Noiseblocker PK-3  
CoolingCoolingCoolingOS
Bitspower Compression Fittings Lamptron FC-8 Noiseblocker PL-2 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Asus PB287Q 4K Steelseries 7G Custum wired EVGA NEX 1500 Caselabs SMA8 
MouseMouse Pad
Rat 7 Razer Goliathus XL 
CPUMotherboardGraphicsRAM
i7 920 c0 @ 4.2 Ghz w/ 1.4v max 4.6ghz @1.55v w... Asus P6T6 WS Revolution w/ koolance nb/sb+mosfe... EVGA GTX 480 x3 w/ Koolance Vid-NX480 12gb Corsair Dominator 1600mhz w/ MIPS Ramcooler 6 
Hard DriveOptical DriveCoolingOS
1.5 Tb Seagate barracuda x3 LG Bluray Burner 2x SR1 360, RX 360, SR1 240, SR1 120, 2x MCP355... Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung t260 x3 Razer Black Widow Ultimate Silverstone st1200 Mountain Mods U2UFO w/ MM Pedestal Addition 
MouseMouse PadAudioAudio
Razer Mamba Razer Destructor X-Fi Fata1ity Logitech Z-5500 
CPUGraphicsRAMHard Drive
i7 3840QM 650ti 8GB 1333mhz DDR3 256gb ssd 
OSMonitorPowerCase
OSX Mountain Lion Retina Display 85w Magsafe Power Adapter Aluminum Unibody 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › loop questions (2 CPUs)