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Airflow question re: using H100 and Accelero Hybrid in tandem.

post #1 of 8
Thread Starter 
Hey All,

I have been a frequent visitor, but new member in need of some airflow advice.

I have a CM 690 case: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3198497


I currently have the following setup:

Fans pulling air in case:
1 Scythe 120mm sitting on bottom of case blowing up
2 Scythe 120mm in front (one behind bay grates, other below behind insignia where HD slots are)
2 120 mm CM side fans.



Fans blowing air out:

1 Scythe 120MM in back
2x 120mm fans under H100 radiator at top of case pushing air through radiator and out. (NB my case is too small to do push/pull w. H100)

So currently, I essentially have fresh cool air coming from front, bottom and sides being expelled from top and rear.

I have recently acquired an Accelero Hybrid and 4x Corsair Air Series SP120 High Performance Edition 120mm fans.

Looking for the optimum setup to maximize beneficial airflow with no additional mods to case. (cut out backs of drive and HD bays to ensure front fans are impeded as little as possible already)

The Accelero Hybrid website provides 4 options, but none factor in it being used w. an H100. http://www.arctic.ac/en/p/cooling/vga/569/accelero-hybrid.html?c=2342





I intend to use the SP120s on one side of the H100 at the top of the case (push or pull?) and on the other 2 on both sides of the Hybrid for push pull wherever it winds up being located. Other than that, I am open to all suggestions.

I would appreciate any guidance you all can provide.

Thank you!!
post #2 of 8
Thread Starter 
Here's a pic of the inside of my case. I know the wire management needs work and I am already contemplating removing the ram fans in case they obstruct airflow from front to back

post #3 of 8
Thread Starter 
Here's a pic of the inside of my case. I know the wire management needs work and I am already contemplating removing the ram fans in case they obstruct airflow from front to back

post #4 of 8
this is a tough one, if you mount the gpu cooler radiator in front then it will put warm air in the case, if you put the gpu cooler radiator as exhaust out the back it will pull air from the rear fan on your cpu cooler radiator which will cause that fan not to work as good as it should. I would mount the gpu radiator as intake in the rear that way the air that turns warm from the radiator will not pass through your case as the cpu radiator fan will grab it and push it out the top.
Old X58
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 6 core ASUS Sabertooth X58 MSI GTX 1070 Gaming X GSkill 24 gigs 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 gig Crucial M500 120gig WD VelociRaptor 1TB Noctua 
OSMonitorMonitorKeyboard
Windows 7 Pro 64bit LG 29inch widescreen Dp LG 24inch widescreen HDMI Corsair K65 
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EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
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Old X58
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 6 core ASUS Sabertooth X58 MSI GTX 1070 Gaming X GSkill 24 gigs 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 gig Crucial M500 120gig WD VelociRaptor 1TB Noctua 
OSMonitorMonitorKeyboard
Windows 7 Pro 64bit LG 29inch widescreen Dp LG 24inch widescreen HDMI Corsair K65 
PowerCaseMouseAudio
EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
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Custom sleeved psu cables 
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post #5 of 8
Quote:
Originally Posted by ryhaigh76 View Post

I intend to use the SP120s on one side of the H100 at the top of the case (push or pull?) and on the other 2 on both sides of the Hybrid for push pull wherever it winds up being located. Other than that, I am open to all suggestions.

I would appreciate any guidance you all can provide.

Thank you!!

benefit of push/pull is not enough to offest the noise especially if you are already using SP fans. SP fans are built for Static Pressure already so there is little benefit in doing a push/pull considering you are using thin rads. with thick rads, there may be some additional benefit with push/pull to overcome the extra resistance from the thickness of the rad, but for a thin rad, either a push or a pull is already sufficient. so what i would recommend is doing a push configuration on all of your rad fans, which leaves you with an additional SP fan that I recommend you using as a front intake fan (adding an air filter is recommended)

with the stronger intake fan, you should be able to feed more cool air into the case which will improve your overall cooling inside as well as reducing some dust if you add filter onto it.
post #6 of 8
Thread Starter 
Thanks guys.

Psyclum -

Just so I follow....
Keep H100 as is, with fans blowing through radiator and out top.
Set up Hybrid in back with fan blowing through radiator, and out the case.?

In terms of pulling more cool air into the case, would there be any benefit to me zip-tying fans to the metal housing in the back of the bays before they reach the main case parallel to front fans to help along the air being pulled in from the front fans?

Also, what are your thoughts on the side fans? I currently have 2 120mm blowing air in the case. Although this may just disturb airflow? Also, should I remove the RAM fans for the same reason?

Thanks again!!
post #7 of 8
yes on fans inside on the hard drive cage never hurts, I have done this with older systems I had and it helps.
as for side fans, I found they don't help much, and like you said they can cause odd air flow.
Edited by jlhawn - 9/22/13 at 5:02pm
Old X58
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 6 core ASUS Sabertooth X58 MSI GTX 1070 Gaming X GSkill 24 gigs 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 gig Crucial M500 120gig WD VelociRaptor 1TB Noctua 
OSMonitorMonitorKeyboard
Windows 7 Pro 64bit LG 29inch widescreen Dp LG 24inch widescreen HDMI Corsair K65 
PowerCaseMouseAudio
EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
Other
Custom sleeved psu cables 
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Old X58
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 6 core ASUS Sabertooth X58 MSI GTX 1070 Gaming X GSkill 24 gigs 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 gig Crucial M500 120gig WD VelociRaptor 1TB Noctua 
OSMonitorMonitorKeyboard
Windows 7 Pro 64bit LG 29inch widescreen Dp LG 24inch widescreen HDMI Corsair K65 
PowerCaseMouseAudio
EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
Other
Custom sleeved psu cables 
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post #8 of 8
Quote:
Originally Posted by ryhaigh76 View Post

Thanks guys.

Psyclum -

Just so I follow....
Keep H100 as is, with fans blowing through radiator and out top.
Set up Hybrid in back with fan blowing through radiator, and out the case.?

yes. this is for acoustic reasons. you can test it out yourself running the fan in open air, then approach the fan with your palm from the intake side till your palm is almost touching the fan blades, then do the same with the exhaust side of the fan. you can hear the acoustic signature is louder when your palm is on the intake side after it closes to almost 1 inch away from the fan blades.
Quote:
Originally Posted by ryhaigh76 View Post

In terms of pulling more cool air into the case, would there be any benefit to me zip-tying fans to the metal housing in the back of the bays before they reach the main case parallel to front fans to help along the air being pulled in from the front fans?

here is some benefit to that, however unless you have enough cool air coming into the case, you are simply recirculating warm air. you also have to be concerned about the length of the vid card because of the additional thickness of the fan you are adding
Quote:
Originally Posted by ryhaigh76 View Post

Also, what are your thoughts on the side fans? I currently have 2 120mm blowing air in the case. Although this may just disturb airflow? Also, should I remove the RAM fans for the same reason?

Thanks again!!

side fans are good as long as they do not interfere with other components. the "problem" with side fans are

1. most people neglect in adding a fan filter on the side panel fan so they bring additional dust into the system which degrades cooling performance over time

2. due to the proximity of hot exhaust, it's possible you will be recirculating warm air back into the case. this is particularly a problem if the computer is located in a semi enclosed area where there is insufficient ventilation towards the rear of the case. (such as under a desk and the back side of the case is blocked by the back of the desk / wall and 1 side of the case is blocked by the side of the desk.) if you are going to use side intake fans, make sure you place the case where there is sufficient ventilation OUTSIDE of the case particularly towards the rear of the case where the hot exhaust air are coming out.

as far as disturbing the airflow path. it depends on the volume of air you are moving through your case. generally speaking it's of less concern in the overall cooling performance. obviously the smoother the airflow path, the less airflow is required to accomplish the same job. it's one of the reason that i'm using a FT02.
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