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Case fans with an H100i GTX

post #1 of 5
Thread Starter 
I have a Phanteks Enthoo Pro M case with an H100i GTX on the way and I was just wondering about the best location of case fans. The plan is to have the H100 on the top with a push setup exhausting the air out of the case. The case takes 2 fans at the front and a fan at the back; annoyingly it doesn't take any at the bottom.

My plan is to have the front fans as intakes and the rear fan as an exhaust but I'm worried that this will lead to negative pressure inside the case and the dust that comes with it. Would this be alright? I'm planning on maybe using a corsair AF120 (or a 120 Akasa Viper) at the back with two Cooler Master Blade Master 120s at the front.
Old hand
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CPUMotherboardGraphicsRAM
Intel i5 2500k Asus P8P67 Pro Rev 3.1 Gigabyte NVIDIA GTX 970 G1 Gaming G.Skill RipjawsX 8GB 
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Crucual M4 64GB Samsung F3 1TB Seagate Barracuda Green 2TB Seagate Barracuda 2TB 
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LG BH10LS38 10x BluRay-RW / 16 x DVD±RW Lightsc... Corsair H100i GTX Windows 10 Professional x64 23" Asus VG236 120Hz 1080p 
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Old hand
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CPUMotherboardGraphicsRAM
Intel i5 2500k Asus P8P67 Pro Rev 3.1 Gigabyte NVIDIA GTX 970 G1 Gaming G.Skill RipjawsX 8GB 
Hard DriveHard DriveHard DriveHard Drive
Crucual M4 64GB Samsung F3 1TB Seagate Barracuda Green 2TB Seagate Barracuda 2TB 
Optical DriveCoolingOSMonitor
LG BH10LS38 10x BluRay-RW / 16 x DVD±RW Lightsc... Corsair H100i GTX Windows 10 Professional x64 23" Asus VG236 120Hz 1080p 
PowerCaseMouseMouse Pad
750W Corsair TX Phatenks Enthoo Pro M Logitech MX518 Perixx DX-1000L 
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post #2 of 5
The corsair H100i GTX alone would bring your case to negative pressure with two CM Blade Master 120s at intake. If you want to use the H100i at exhaust, have two CMBM120s at intake, and have positive air pressure, you'll need to use your rear fan as intake
post #3 of 5
Thread Starter 
Quote:
Originally Posted by gftgy View Post

The corsair H100i GTX alone would bring your case to negative pressure with two CM Blade Master 120s at intake. If you want to use the H100i at exhaust, have two CMBM120s at intake, and have positive air pressure, you'll need to use your rear fan as intake

OK, that's a bit of a pain but it's doable. Would it be better to have the h100i gtx as the front intake for the case and have the other fans as exhaust at the top/back? Will this cause the GPU to run much hotter or should it be negligible?
Old hand
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CPUMotherboardGraphicsRAM
Intel i5 2500k Asus P8P67 Pro Rev 3.1 Gigabyte NVIDIA GTX 970 G1 Gaming G.Skill RipjawsX 8GB 
Hard DriveHard DriveHard DriveHard Drive
Crucual M4 64GB Samsung F3 1TB Seagate Barracuda Green 2TB Seagate Barracuda 2TB 
Optical DriveCoolingOSMonitor
LG BH10LS38 10x BluRay-RW / 16 x DVD±RW Lightsc... Corsair H100i GTX Windows 10 Professional x64 23" Asus VG236 120Hz 1080p 
PowerCaseMouseMouse Pad
750W Corsair TX Phatenks Enthoo Pro M Logitech MX518 Perixx DX-1000L 
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Old hand
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 2500k Asus P8P67 Pro Rev 3.1 Gigabyte NVIDIA GTX 970 G1 Gaming G.Skill RipjawsX 8GB 
Hard DriveHard DriveHard DriveHard Drive
Crucual M4 64GB Samsung F3 1TB Seagate Barracuda Green 2TB Seagate Barracuda 2TB 
Optical DriveCoolingOSMonitor
LG BH10LS38 10x BluRay-RW / 16 x DVD±RW Lightsc... Corsair H100i GTX Windows 10 Professional x64 23" Asus VG236 120Hz 1080p 
PowerCaseMouseMouse Pad
750W Corsair TX Phatenks Enthoo Pro M Logitech MX518 Perixx DX-1000L 
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post #4 of 5
Thread Starter 


My case has dust filters at the front and at the top so those are the best places to mount intake fans. Would it be ok to have the layout as above? I know that this will result in quite a positive pressure in the case but as I have the dust filters, it shouldn't matter too much right? I know the air coming into the case will be warmer since some will be coming through the radiator but the front air should be cool enough to cool the HDDs and the GPU.

I think i'll go with this unless anyone thinks this is stupid...
Old hand
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 2500k Asus P8P67 Pro Rev 3.1 Gigabyte NVIDIA GTX 970 G1 Gaming G.Skill RipjawsX 8GB 
Hard DriveHard DriveHard DriveHard Drive
Crucual M4 64GB Samsung F3 1TB Seagate Barracuda Green 2TB Seagate Barracuda 2TB 
Optical DriveCoolingOSMonitor
LG BH10LS38 10x BluRay-RW / 16 x DVD±RW Lightsc... Corsair H100i GTX Windows 10 Professional x64 23" Asus VG236 120Hz 1080p 
PowerCaseMouseMouse Pad
750W Corsair TX Phatenks Enthoo Pro M Logitech MX518 Perixx DX-1000L 
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Old hand
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 2500k Asus P8P67 Pro Rev 3.1 Gigabyte NVIDIA GTX 970 G1 Gaming G.Skill RipjawsX 8GB 
Hard DriveHard DriveHard DriveHard Drive
Crucual M4 64GB Samsung F3 1TB Seagate Barracuda Green 2TB Seagate Barracuda 2TB 
Optical DriveCoolingOSMonitor
LG BH10LS38 10x BluRay-RW / 16 x DVD±RW Lightsc... Corsair H100i GTX Windows 10 Professional x64 23" Asus VG236 120Hz 1080p 
PowerCaseMouseMouse Pad
750W Corsair TX Phatenks Enthoo Pro M Logitech MX518 Perixx DX-1000L 
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post #5 of 5
I really can't recommend an intake-exhaust ratio above 3:1. What you're suggesting is quite excessive, and will significantly diminish the ability of your radiator fans to cool the CPU, along with increasing the temperature of internal components in the case, including the GPU.

You can buy a magnetic fan filter to add to the rear for you to still use as intake, if you're worried about dust so much.
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