Overclock.net › Forums › Cooling › Water Cooling › Water cooling multiple CPU's (4)
New Posts  All Forums:Forum Nav:

Water cooling multiple CPU's (4)

post #1 of 17
Thread Starter 
Hey everyone,


I've water cooled quite a few systems, I just have a quick question regarding something entirely new to me...


I'm designing a liquid cooling system for a Quad CPU system, and I wanted to know if I should designate a loop for each CPU, or run each one consecutively in the same loop? Run through two CPU's, back to a rad, then to the other two? How should I go about setting this up?
post #2 of 17
I've seen people with a continues loop between two cpu ie sr-2 build
and as far as I can remember B Neg who has sr-2 build has minimum temp difference between the cpu running it that way

Are you planning dual loop?
I would personally make a dual loop and run two cpu in one loop to be honest
that way you can maybe OC the cpu better and have lower temp
post us how it goes, thats an interesting idea smile.gif
Project Blank
(22 items)
 
Phenomenon
(21 items)
 
Mechanical Love!
(23 photos)
CPUMotherboardGraphicsGraphics
i7 4930k Asus Rampage IV Black Edition Powercolor R9 290 Powercolor R9 290 
RAMHard DriveHard DriveHard Drive
4x4GB Corsair Dominator Platinum Samsung EVO 120GB x 2 (Raid 0) Samsung EVO 500GB WD Caviar Black 1TB 
CoolingOSMonitorKeyboard
Custom Water Cooling Windows 8.1 Asus PB278Q Too many.... 
PowerCaseMouseMouse Pad
Seasonic Platinum 1000w Caselabs SM8 Logitech G602 Artisan Hien 
AudioAudioAudioAudio
Aune T1 amp+dac Asus Xonar STX Bose Companion 5 Shure SRH 1440 
AudioOther
Beyerdynamic DT880 250 Ohm NZXT Sentry Mix 2 
CPUMotherboardGraphicsGraphics
i7 3770k @4.8ghz , 1.344v Asus Maximus V Formula Asus GTX 670 DC2T-2GD5 Asus GTX 670 DC2T-2GD5 
RAMHard DriveHard DriveCooling
G.Skill Ripzjaw (4x4GB) OCZ Vertex 4 (256GB) WD Caviar Black (1TB) Custom Water Loop 
OSMonitorKeyboardPower
Windows 8 QNIX QX2710 Too many... Seasonic Platinum 860w 
CaseMouseMouse PadAudio
Switch 810 + Pedestal Logitech G602 Artisan Mousepad Bose Companion 5 
AudioAudioAudioOther
Asus Xonar Phoebus Shure SRH1400 Beats Pro NZXT Sentry Mix 
Other
Razer Bungee 
  hide details  
Reply
Project Blank
(22 items)
 
Phenomenon
(21 items)
 
Mechanical Love!
(23 photos)
CPUMotherboardGraphicsGraphics
i7 4930k Asus Rampage IV Black Edition Powercolor R9 290 Powercolor R9 290 
RAMHard DriveHard DriveHard Drive
4x4GB Corsair Dominator Platinum Samsung EVO 120GB x 2 (Raid 0) Samsung EVO 500GB WD Caviar Black 1TB 
CoolingOSMonitorKeyboard
Custom Water Cooling Windows 8.1 Asus PB278Q Too many.... 
PowerCaseMouseMouse Pad
Seasonic Platinum 1000w Caselabs SM8 Logitech G602 Artisan Hien 
AudioAudioAudioAudio
Aune T1 amp+dac Asus Xonar STX Bose Companion 5 Shure SRH 1440 
AudioOther
Beyerdynamic DT880 250 Ohm NZXT Sentry Mix 2 
CPUMotherboardGraphicsGraphics
i7 3770k @4.8ghz , 1.344v Asus Maximus V Formula Asus GTX 670 DC2T-2GD5 Asus GTX 670 DC2T-2GD5 
RAMHard DriveHard DriveCooling
G.Skill Ripzjaw (4x4GB) OCZ Vertex 4 (256GB) WD Caviar Black (1TB) Custom Water Loop 
OSMonitorKeyboardPower
Windows 8 QNIX QX2710 Too many... Seasonic Platinum 860w 
CaseMouseMouse PadAudio
Switch 810 + Pedestal Logitech G602 Artisan Mousepad Bose Companion 5 
AudioAudioAudioOther
Asus Xonar Phoebus Shure SRH1400 Beats Pro NZXT Sentry Mix 
Other
Razer Bungee 
  hide details  
Reply
post #3 of 17
I run my 2 chips in series with heavy oc's,the temps are pretty even between the 2.
I don't think there is a quad socket made that overclocks so you could do a 4 CPU loop,I have 3 670s in the same loop,another 2 CPUs instead shouldn't make much difference.
MILSPEC II
(8 items)
 
| LUMO |
(6 items)
 
CLoS3 IMPACT
(8 items)
 
CPUMotherboardGraphicsGraphics
5820k X99m WS 980ti strix 980ti strix 
RAMHard DrivePowerCase
KLEVV Cras DDR4  3tb Red Corsair 600w SFX + 450w SFX Caselabs BH4 
CPUMotherboardGraphicsRAM
4970k Z97 Gryphon GTX 680 x2 Crucial Ballistix Elite 16Gb 
PowerCase
Be Quiet Dark Power 850 InWin D Frame Mini 
CPUMotherboardGraphicsRAM
i7 4770k ASUS Impact ITX R9 290 Gskill Trident 2400 
Hard DriveHard DriveCoolingCase
Samsung EV0 250 x2 WD black Loop.....oh yes...... Caselabs S3....modded 
  hide details  
Reply
MILSPEC II
(8 items)
 
| LUMO |
(6 items)
 
CLoS3 IMPACT
(8 items)
 
CPUMotherboardGraphicsGraphics
5820k X99m WS 980ti strix 980ti strix 
RAMHard DrivePowerCase
KLEVV Cras DDR4  3tb Red Corsair 600w SFX + 450w SFX Caselabs BH4 
CPUMotherboardGraphicsRAM
4970k Z97 Gryphon GTX 680 x2 Crucial Ballistix Elite 16Gb 
PowerCase
Be Quiet Dark Power 850 InWin D Frame Mini 
CPUMotherboardGraphicsRAM
i7 4770k ASUS Impact ITX R9 290 Gskill Trident 2400 
Hard DriveHard DriveCoolingCase
Samsung EV0 250 x2 WD black Loop.....oh yes...... Caselabs S3....modded 
  hide details  
Reply
post #4 of 17
I am not aware of any systems running quad CPUs.
Would they share the load at a times or would some of them get loaded while others are more or less idling? This would be an important factor in answeing your question properly.

Cheers cheers.gif
Dark Vader
(6 items)
 
  
CoolingCoolingCoolingCooling
39 X AP-45 2150 rpm Gentle Typhoon fans Lamptron CW611 FrozenQ Dual Bay Reservoir 2x XT45 480. 1x UT60 480 ~ 1x UT60 360 ~ 1x UT... 
OSCase
Linux Ubuntu CaseLabs STH10 
  hide details  
Reply
Dark Vader
(6 items)
 
  
CoolingCoolingCoolingCooling
39 X AP-45 2150 rpm Gentle Typhoon fans Lamptron CW611 FrozenQ Dual Bay Reservoir 2x XT45 480. 1x UT60 480 ~ 1x UT60 360 ~ 1x UT... 
OSCase
Linux Ubuntu CaseLabs STH10 
  hide details  
Reply
post #5 of 17
Quote:
Originally Posted by PepeLapiu View Post

I am not aware of any systems running quad CPUs.
Would they share the load at a times or would some of them get loaded while others are more or less idling? This would be an important factor in answeing your question properly.

Cheers cheers.gif
Server motherboard?
Dante's Inferno
(20 items)
 
Work Horse
(11 items)
 
Little Monster
(9 items)
 
CPUMotherboardGraphicsRAM
[Intel] i7 3930k @ 4.4 Ghz [Asus] Rampage IV Extreme [Saphire] HD 7970 Quadfire @ 1100/1600 [G.Skill] Ripjawz 16GB @1866Mhz 
Hard DriveHard DriveHard DriveHard Drive
[OCZ] Agility 3 360GB [OCZ] Vertex 4 120GB [Seagate] Barracuda 3 TB [Seagate] Barracuda 3 TB 
Optical DriveCoolingOSMonitor
[Asus] BD Drive [Corsair] H80 [Windows] 7 Ultimate [ASUS] VS24AH 
MonitorKeyboardPowerCase
[Samsung] 40 Inch LED TV [Corsair] K90 [Enermax] Maxrevo 1350 Watt [Corsair] C70 Arctic White 
MouseMouse PadAudioAudio
[Razer] Deathadder 2013 [SteelSeries] XL Mousemat [Astro] Mixamp Pro [Audio Technica] ATH-M30 
CPUMotherboardGraphicsGraphics
AMD 8120 Asus Sabertooth 990FX  Powercolor HD 7970 Powercolor HD 7970 
GraphicsRAMHard DriveCooling
Powercolor HD 7970 8 GB G.Skill Sniper 120 GB OCZ Vertex 4 AMD Stock Cooler 
OSPowerCase
Windows 7 Professional XFX 1250 Watt Antec Three Hundred 
CPUMotherboardGraphicsRAM
I7 3770K ASUS P8Z77-I Deluxe HD 7970 8GB Corsair Vengance 
Hard DriveHard DriveOptical DriveOS
120GB Kingston HyperX 3TB Seagate Barracuda  ASUS BD Drive Windows 7 
Case
Bitfenix Prodigy 
  hide details  
Reply
Dante's Inferno
(20 items)
 
Work Horse
(11 items)
 
Little Monster
(9 items)
 
CPUMotherboardGraphicsRAM
[Intel] i7 3930k @ 4.4 Ghz [Asus] Rampage IV Extreme [Saphire] HD 7970 Quadfire @ 1100/1600 [G.Skill] Ripjawz 16GB @1866Mhz 
Hard DriveHard DriveHard DriveHard Drive
[OCZ] Agility 3 360GB [OCZ] Vertex 4 120GB [Seagate] Barracuda 3 TB [Seagate] Barracuda 3 TB 
Optical DriveCoolingOSMonitor
[Asus] BD Drive [Corsair] H80 [Windows] 7 Ultimate [ASUS] VS24AH 
MonitorKeyboardPowerCase
[Samsung] 40 Inch LED TV [Corsair] K90 [Enermax] Maxrevo 1350 Watt [Corsair] C70 Arctic White 
MouseMouse PadAudioAudio
[Razer] Deathadder 2013 [SteelSeries] XL Mousemat [Astro] Mixamp Pro [Audio Technica] ATH-M30 
CPUMotherboardGraphicsGraphics
AMD 8120 Asus Sabertooth 990FX  Powercolor HD 7970 Powercolor HD 7970 
GraphicsRAMHard DriveCooling
Powercolor HD 7970 8 GB G.Skill Sniper 120 GB OCZ Vertex 4 AMD Stock Cooler 
OSPowerCase
Windows 7 Professional XFX 1250 Watt Antec Three Hundred 
CPUMotherboardGraphicsRAM
I7 3770K ASUS P8Z77-I Deluxe HD 7970 8GB Corsair Vengance 
Hard DriveHard DriveOptical DriveOS
120GB Kingston HyperX 3TB Seagate Barracuda  ASUS BD Drive Windows 7 
Case
Bitfenix Prodigy 
  hide details  
Reply
post #6 of 17
Quote:
Originally Posted by xNovax View Post

Server motherboard?

Yeah okay maybe.
I never played around with servers here. Would the board load all CPU's equally like an SLI GPU's type of thing? Or would the CPU's have different loads and heat outputs at different times?
Dark Vader
(6 items)
 
  
CoolingCoolingCoolingCooling
39 X AP-45 2150 rpm Gentle Typhoon fans Lamptron CW611 FrozenQ Dual Bay Reservoir 2x XT45 480. 1x UT60 480 ~ 1x UT60 360 ~ 1x UT... 
OSCase
Linux Ubuntu CaseLabs STH10 
  hide details  
Reply
Dark Vader
(6 items)
 
  
CoolingCoolingCoolingCooling
39 X AP-45 2150 rpm Gentle Typhoon fans Lamptron CW611 FrozenQ Dual Bay Reservoir 2x XT45 480. 1x UT60 480 ~ 1x UT60 360 ~ 1x UT... 
OSCase
Linux Ubuntu CaseLabs STH10 
  hide details  
Reply
post #7 of 17

what i would do is a parallel loop, 2 cpus each

First PC
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k - 4ghz ASUS P8Z77-V LE Plus Reference XFX R9 290 2x8gb Corsair XMS3 1600mhz 
Hard DriveHard DriveHard DriveCooling
Samsung 830 128gb Seagate 2TB 7200 rpm 64mb cache Seagate 1TB 7200 rpm 64mb cache Swiftech H220-x 
CoolingCoolingOSMonitor
Kraken G10 Zalman LQ320 (GPU) Windows 7 Pro Asus PB278Q 
KeyboardPowerCaseMouse
Filco Majestouch 2, Blue Switches Corsair AX850 Phantom 410 (Black) Razer Naga 2014 Left-Handed Edition 
Mouse PadAudioAudioAudio
Roccat Taito HeadRoom Maxxed Out Home Headphone Amplifier Schiit Modi 2.0 Uber Sennheiser HD650 
AudioAudio
Rode NTA-1 Mic Vanatoo Transparent One Speakers 
  hide details  
Reply
First PC
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k - 4ghz ASUS P8Z77-V LE Plus Reference XFX R9 290 2x8gb Corsair XMS3 1600mhz 
Hard DriveHard DriveHard DriveCooling
Samsung 830 128gb Seagate 2TB 7200 rpm 64mb cache Seagate 1TB 7200 rpm 64mb cache Swiftech H220-x 
CoolingCoolingOSMonitor
Kraken G10 Zalman LQ320 (GPU) Windows 7 Pro Asus PB278Q 
KeyboardPowerCaseMouse
Filco Majestouch 2, Blue Switches Corsair AX850 Phantom 410 (Black) Razer Naga 2014 Left-Handed Edition 
Mouse PadAudioAudioAudio
Roccat Taito HeadRoom Maxxed Out Home Headphone Amplifier Schiit Modi 2.0 Uber Sennheiser HD650 
AudioAudio
Rode NTA-1 Mic Vanatoo Transparent One Speakers 
  hide details  
Reply
post #8 of 17
Quote:
Originally Posted by PepeLapiu View Post

Quote:
Originally Posted by xNovax View Post

Server motherboard?

Yeah okay maybe.
I never played around with servers here. Would the board load all CPU's equally like an SLI GPU's type of thing? Or would the CPU's have different loads and heat outputs at different times?


It could be both depending on the scheduler. It's no different than multi-core cpus, just on a larger scale.
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
post #9 of 17
G34's?
The Claw
(23 items)
 
Mates
(20 items)
 
Dream PC Comp
(7 items)
 
CPUMotherboardGraphicsGraphics
I7-950 @ 3.8GHz ASRock X58 Extreme3 Gigabyte GTX 760 @ 1350 EVGA GTX 560 ( PhysX ) 
RAMHard DriveHard DriveHard Drive
12GB Corsair 1600Mhz Corsair Force 80GB SSD Samsung Spinpoint 1TB Samsung Spinpoint 1TB 
Hard DriveHard DriveOptical DriveCooling
Seagate 2TB Corsair Force GS 128GB Pioneer 12X Blu-Ray Corsair H100i 
OSMonitorMonitorKeyboard
Windows 8.1 Pro 64 Bit Samsung 22 Inch LCD Asus 27 Inch LED Logitech G110 
PowerCaseMouseMouse Pad
Corsair AX 750 Coolermaster CM 690 II Advanced Nvidia Edition. Logitech G5 Razor Goliath 
AudioAudioOther
Logitech 5.1 Corsair Vengeance 1500 7.1  IKEA DESK!!!!!! 
CPUMotherboardGraphicsGraphics
I5-2500K ASrock Z68 Extreme3 Gen3 Sapphire OC 7970 Sapphire OC 7970 
RAMHard DriveHard DriveHard Drive
Crosair Vengance 8GB 1600 Mhz OCZ Agility 3 120GB WD 500GB 7200 RPM WD 2TB 7200 RPM 
Hard DriveOptical DriveCoolingOS
Corsair Forice GS 128GB LG Optical CD/DVD Coolermaster V6 GT Windows 7 Pro 
MonitorMonitorMonitorKeyboard
Asus VE248Q Asus VE248Q Asus VE248Q Microsoft Essentials 
PowerCaseMouseMouse Pad
Corsair AX 760 CoolerMaster nvidia Edition CM 690 II Advanced  Logitech G500 Razor Golithias 
CPUMotherboardGraphicsRAM
Intel I7 4770K ASUS Maximus VI Extreme Motherboard MSI GTX 780 Corsair Vengeance 32GB 
CoolingPowerCase
Corsair H100 Corsair AX 860 corsair 600T White 
  hide details  
Reply
The Claw
(23 items)
 
Mates
(20 items)
 
Dream PC Comp
(7 items)
 
CPUMotherboardGraphicsGraphics
I7-950 @ 3.8GHz ASRock X58 Extreme3 Gigabyte GTX 760 @ 1350 EVGA GTX 560 ( PhysX ) 
RAMHard DriveHard DriveHard Drive
12GB Corsair 1600Mhz Corsair Force 80GB SSD Samsung Spinpoint 1TB Samsung Spinpoint 1TB 
Hard DriveHard DriveOptical DriveCooling
Seagate 2TB Corsair Force GS 128GB Pioneer 12X Blu-Ray Corsair H100i 
OSMonitorMonitorKeyboard
Windows 8.1 Pro 64 Bit Samsung 22 Inch LCD Asus 27 Inch LED Logitech G110 
PowerCaseMouseMouse Pad
Corsair AX 750 Coolermaster CM 690 II Advanced Nvidia Edition. Logitech G5 Razor Goliath 
AudioAudioOther
Logitech 5.1 Corsair Vengeance 1500 7.1  IKEA DESK!!!!!! 
CPUMotherboardGraphicsGraphics
I5-2500K ASrock Z68 Extreme3 Gen3 Sapphire OC 7970 Sapphire OC 7970 
RAMHard DriveHard DriveHard Drive
Crosair Vengance 8GB 1600 Mhz OCZ Agility 3 120GB WD 500GB 7200 RPM WD 2TB 7200 RPM 
Hard DriveOptical DriveCoolingOS
Corsair Forice GS 128GB LG Optical CD/DVD Coolermaster V6 GT Windows 7 Pro 
MonitorMonitorMonitorKeyboard
Asus VE248Q Asus VE248Q Asus VE248Q Microsoft Essentials 
PowerCaseMouseMouse Pad
Corsair AX 760 CoolerMaster nvidia Edition CM 690 II Advanced  Logitech G500 Razor Golithias 
CPUMotherboardGraphicsRAM
Intel I7 4770K ASUS Maximus VI Extreme Motherboard MSI GTX 780 Corsair Vengeance 32GB 
CoolingPowerCase
Corsair H100 Corsair AX 860 corsair 600T White 
  hide details  
Reply
post #10 of 17
Reasons for a single loop

1) Cost
With a single loop, there is only one pump to buy, maybe two for power/redundancy. With multiple loops, you will need multiple pumps no matter what. More fittings to buy, multiple reservoirs.

2) Maintenance
Only one loop to build/bleed/drain/clean/monitor.

3) Noise
Less noise from a single (or dual) pump over 4 separate pumps.

4) Heat
Pumps do inject heat into your loop, a single pump won't heat up your loop as much as 4 would heat up their individual loops.

5) Safety
With multiple loops, you multiply the chances of pump failure and leaks by the amount of loops. Should one of the loops fail, it's CPU will heat up and the rig needs to be stopped. With a single loop, there are fewer chances of loop failure. And you can always add a second pump for more power and more redundancy. A pump fails and the other one keeps the show on the road.

6) Performance
Most importantly, you will get much better performance out of a single loop, especially if the CPU are unevenly loaded.. Imagine if you will 4 loops, one loop for each CPU and a 240 rad in each loop. So CPU-1 gets loaded and gets hotter while the other 3 are idling. That CPU-1 could really use more rads to help it cool down, but it's limited to the 240 rad in it's loop while the other 3 rads are basically useless as their CPUs are idling.

With multiple loops, whenever one loop is idle, it's rads are more or less wasted. But in a single loop, all the rads get to work where they are needed, when they are needed.


Reasons for multiple loops

1) Eye candy
You get to have multiple reservoirs with posible multiple coolant colors. That's the only pro of a multiple loop set up. And I imagine that's not a big concern in a server environment.


Cheers cheers.gif
Dark Vader
(6 items)
 
  
CoolingCoolingCoolingCooling
39 X AP-45 2150 rpm Gentle Typhoon fans Lamptron CW611 FrozenQ Dual Bay Reservoir 2x XT45 480. 1x UT60 480 ~ 1x UT60 360 ~ 1x UT... 
OSCase
Linux Ubuntu CaseLabs STH10 
  hide details  
Reply
Dark Vader
(6 items)
 
  
CoolingCoolingCoolingCooling
39 X AP-45 2150 rpm Gentle Typhoon fans Lamptron CW611 FrozenQ Dual Bay Reservoir 2x XT45 480. 1x UT60 480 ~ 1x UT60 360 ~ 1x UT... 
OSCase
Linux Ubuntu CaseLabs STH10 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › Water cooling multiple CPU's (4)