Overclock.net › Forums › Cooling › Water Cooling › ??? Overall Water Cooling Efficiency "Boost" from PUSH-PULL vs. PUSH or PULL only (Corsair H100i)
New Posts  All Forums:Forum Nav:

??? Overall Water Cooling Efficiency "Boost" from PUSH-PULL vs. PUSH or PULL only (Corsair H100i)

post #1 of 5
Thread Starter 
Does anyone know or have evidence that points to a specific percentage boost in performance, by using 4 fans in a PUSH-PULL configuration over a 2-fan PUSH or PULL configuration?

Curious to see if my new custom-built PC project, which uses the Corsair H100i water cooling unit (and 4-fans in a PUSH-PULL setup), will actually make THAT much difference at the end of the day.

Will it increase the cooling efficiency of the water cooling unit by 50% or better? Is that too optimistic?

Has anyone tested this theory out to get some concrete numbers?

And if so, were these results achieved by using the STOCK Corsair fans, or an aftermarket replacement brand?

Thanks.

-Sean D.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

*P.S. - For anyone who cares...

Here is the component breakdown of my new custom PC setup, that is being built right now:

1) Computer case: Corsair Graphite Series 600T Mid-Tower Gaming Case

2) Motherboard: ASUS Maxiumus V Extreme, LGA 1155, Z77, Thunderbolt ready

3) Memory: G-SKILL SNIPER Gaming Series 32GB (4x8GB sticks), 240-pin DDR3 SDRAM, 1600MHz clock speed, 1.5v, Cas Latency 9, Timing 9-9-9-24, PC3 12800

4) CPU: INTEL Core i7-3770k, Ivy-Bridge, 3.5 GHz (stock), Socket LGA 1155, Quad-Core Processor

(Note: This processor will be safely tweaked to 4.5 GHz stable)

5) CPU Water Cooling Solution: CORSAIR Hydro Series H100i Sealed Water Cooling Unit, 240mm Radiator + Dual 120mm fans
Note: One huge Side benefit to this water cooling unit, is that it bolts up DIRECTLY to the Corsiar 600T Mid Tower case listed above. (with no additional modifications required)

6) Primary OS hard drive: OCZ VECTOR VTR1 SATA III 256 Gb SSD (550+mb/sec write & read capability with BOTH compressed and uncompressed data)

7) Secondary STORAGE hard drive: WESTERN DIGITAL BLACK SERIES WD2002FAEX 2TB 7200rpm mechanical hard drive

8) Graphics Card: MSI Power Edition PCI-E (GeForce 660 GTX) N660Ti PE 2GD5/OC (factory overclocked version), 1019MHz Core Clock (Boost Clock:1097MHz) 2048MB GDDR5 6008MHz Memory)

9) Optical Drive: LITE-ON 12x BLU-RAY Burner /w/ 3D playback capability

10) Power Supply: SEASONIC X-SERIES X-850 /w/ Fully Modular cabling system, 850 watts, ATX12V v2.3 / EPS 12V v2.91, 80PLUS GOLD Certified [/I]

My performance expectations are very high for this specific combination of parts!

All the research, time (and $$$), I have invested in this project is staggering. smile.gif
Edited by csdp31732 - 1/19/13 at 11:47am
post #2 of 5
Well, 50% is a strange number to throw on that. It won't cut your temps in half, which is 50%. It will however drop them a couple degrees celsius. If you're looking to really max out an overclock, sure, throw two fans on there (as long as they are identical fans to the otherside). Odds are, you can survive just fine without.

For reference, I had my RX360 radiator with 6 fans in push pull, and processor temps were about 4C lower, but it was bulky and noisy. I changed back to 3 fans in push only.
Beast of Burden
(19 items)
 
Cool story, bro!
(16 items)
 
 
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77X-UD5H Gigabyte HD 7970 Reference Ripjaws Z 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Caviar Black ASUS DVD XSPC Raystorm 
CoolingCoolingCoolingOS
EK FC-7970 w/ Backplate Copper/Acetal RX360 w/ 3x Yate Loon High Speed in Push XSPC Dual Bay Res w/ D5 Pump Windows 7 
MonitorMonitorKeyboardPower
ASUS VE226H ASUS VE226H Cooler Master Quickfire Rapid Corsair HX850 
CaseMouseMouse Pad
HAF 932 Advanced Razer Deathadder QcK Mini 
CPUMotherboardGraphicsRAM
Q9550@ 3.5GHz w/ 1.191v Gigabyte GA-EP45-UD3P Sapphire Reference 5850 @ 775/1100 G.SKILL 4GB (2 x 2GB) DDR2 1066 
Hard DriveHard DriveHard DriveOptical Drive
Crucial C300 Spinpoint F3 Caviar Black ASUS DVD-RW 
CoolingOSMonitorKeyboard
Arctic Cooling Freezer 7 Pro Windows 7 Home Premium 64-bit Samsung 23" Saitek Eclipse III 
PowerCaseMouse
Corsair 430W NZXT Source 210 Wolf King 
  hide details  
Reply
Beast of Burden
(19 items)
 
Cool story, bro!
(16 items)
 
 
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77X-UD5H Gigabyte HD 7970 Reference Ripjaws Z 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Caviar Black ASUS DVD XSPC Raystorm 
CoolingCoolingCoolingOS
EK FC-7970 w/ Backplate Copper/Acetal RX360 w/ 3x Yate Loon High Speed in Push XSPC Dual Bay Res w/ D5 Pump Windows 7 
MonitorMonitorKeyboardPower
ASUS VE226H ASUS VE226H Cooler Master Quickfire Rapid Corsair HX850 
CaseMouseMouse Pad
HAF 932 Advanced Razer Deathadder QcK Mini 
CPUMotherboardGraphicsRAM
Q9550@ 3.5GHz w/ 1.191v Gigabyte GA-EP45-UD3P Sapphire Reference 5850 @ 775/1100 G.SKILL 4GB (2 x 2GB) DDR2 1066 
Hard DriveHard DriveHard DriveOptical Drive
Crucial C300 Spinpoint F3 Caviar Black ASUS DVD-RW 
CoolingOSMonitorKeyboard
Arctic Cooling Freezer 7 Pro Windows 7 Home Premium 64-bit Samsung 23" Saitek Eclipse III 
PowerCaseMouse
Corsair 430W NZXT Source 210 Wolf King 
  hide details  
Reply
post #3 of 5
Using push pull fans effectively doubles the overall static pressure over push only fans, yet won't double the cooling performance on a radiator since radiators don't have 100% scaling with static pressure gains. I would expect a few degrees of difference in most cases. You're more bottlenecked by the radiator than by the fans.
Captivity
(33 items)
 
  
CPUMotherboardGraphicsRAM
i7-6900K Asus ROG Rampage V Edition 10 R9 Fury X Crucial Ballistix 
Hard DriveHard DriveHard DriveHard Drive
WD Caviar Black WD Caviar Black Mushkin Reactor Mushkin Reactor 
Hard DriveCoolingCoolingCooling
WD Caviar Black Gentle Typhoon AP-15 Alphacool Cape Corp Coolpex Pro 50LT XSPC EX480 
CoolingCoolingCoolingCooling
Primochill PrimoFlex 7/16x5/8 EK Compression Fittings XSPC EX420 Koolance CPU-380I Water Block 
CoolingCoolingCoolingCooling
Bitspower 90 Degree Angle Fittings XSPC EX420 VPP655 Corsair Air Series SP140 
CoolingOSMonitorKeyboard
PMP-450S Windows 10 Monoprice 4k Ducky DK9008G2 
PowerCaseOtherOther
Corsair AX1200i CaseLabs Merlin ST10 CaseLabs Merlin ST10 Pedestal CaseLabs Merlin ST10 Pedestal 
OtherOtherOtherOther
120.4 (480) Radiator Side Mount - Merlin Pedestal 120.4 (480) Radiator Side Mount - Merlin Pedestal 140.3 (420) Radiator Side Mount - Merlin Pedestal 140.3 (420) Radiator Side Mount - Merlin Pedestal 
Other
HDD Cage Assy - Flex-Bay  
  hide details  
Reply
Captivity
(33 items)
 
  
CPUMotherboardGraphicsRAM
i7-6900K Asus ROG Rampage V Edition 10 R9 Fury X Crucial Ballistix 
Hard DriveHard DriveHard DriveHard Drive
WD Caviar Black WD Caviar Black Mushkin Reactor Mushkin Reactor 
Hard DriveCoolingCoolingCooling
WD Caviar Black Gentle Typhoon AP-15 Alphacool Cape Corp Coolpex Pro 50LT XSPC EX480 
CoolingCoolingCoolingCooling
Primochill PrimoFlex 7/16x5/8 EK Compression Fittings XSPC EX420 Koolance CPU-380I Water Block 
CoolingCoolingCoolingCooling
Bitspower 90 Degree Angle Fittings XSPC EX420 VPP655 Corsair Air Series SP140 
CoolingOSMonitorKeyboard
PMP-450S Windows 10 Monoprice 4k Ducky DK9008G2 
PowerCaseOtherOther
Corsair AX1200i CaseLabs Merlin ST10 CaseLabs Merlin ST10 Pedestal CaseLabs Merlin ST10 Pedestal 
OtherOtherOtherOther
120.4 (480) Radiator Side Mount - Merlin Pedestal 120.4 (480) Radiator Side Mount - Merlin Pedestal 140.3 (420) Radiator Side Mount - Merlin Pedestal 140.3 (420) Radiator Side Mount - Merlin Pedestal 
Other
HDD Cage Assy - Flex-Bay  
  hide details  
Reply
post #4 of 5
Thread Starter 
Quote:
Originally Posted by DaClownie View Post

Well, 50% is a strange number to throw on that. It won't cut your temps in half, which is 50%. It will however drop them a couple degrees celsius. If you're looking to really max out an overclock, sure, throw two fans on there (as long as they are identical fans to the otherside). Odds are, you can survive just fine without.

For reference, I had my RX360 radiator with 6 fans in push pull, and processor temps were about 4C lower, but it was bulky and noisy. I changed back to 3 fans in push only.

Quote:
Originally Posted by superericla View Post

Using push pull fans effectively doubles the overall static pressure over push only fans, yet won't double the cooling performance on a radiator since radiators don't have 100% scaling with static pressure gains. I would expect a few degrees of difference in most cases. You're more bottlenecked by the radiator than by the fans.

Thanks Guys,

I appreciate the detailed responses to my questions, on the cooling efficency increase I can expect from adding two additional fans to the radiator core. (in a 4-fan push-pull configuration)

Those performance results are far less than I was looking for, but at least now, I have a more realistic (real world) sense of the true cooling efficiency increase to base my future expectations on going forward. thx. thumb.gif
post #5 of 5
Quote:
Originally Posted by DaClownie View Post

Well, 50% is a strange number to throw on that. It won't cut your temps in half, which is 50%. It will however drop them a couple degrees celsius. If you're looking to really max out an overclock, sure, throw two fans on there (as long as they are identical fans to the otherside). Odds are, you can survive just fine without.

For reference, I had my RX360 radiator with 6 fans in push pull, and processor temps were about 4C lower, but it was bulky and noisy. I changed back to 3 fans in push only.

It's a matter of the radiator. The RX360 is optimized for low RPM only PUSH/PULL configuration (It also works great as a passive one). However, the Black Ice SR1 is optimized for higher RPM fans (approx. 1500RPM, high static pressure preferred than high airflow) and operates a bit better than the RX with PUSH&PULL configuration.
Anyway, the H100i's radiator isn't optimized for push&pull so the difference would be in about 3C , but the noise won't be too comfortable.

edit: the type of radiator is the bottleneck in the scenario which means that if you really want to do a push pull config you'll have to find one better optimized for that (custom loop though) nice rig btw
Edited by dominox64 - 1/20/13 at 5:56am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › ??? Overall Water Cooling Efficiency "Boost" from PUSH-PULL vs. PUSH or PULL only (Corsair H100i)