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What to do with my radiator setup?

post #1 of 6
Thread Starter 
Hey all!

I've decided I need to finish all of the nitpicky little things on my PC that aren't done. Like fix that one wire I sleeved wrong, re-design my drain, cause it sucks, fix my lighting, etc. My PC has been running with both side panels off for a good while now. As I was planning out stuff, ordering some fittings and whatnot, I realized something, and was wondering if anyone could give me some advice.

Currently I have 2x360 rads in my case, an NZXT H440. Front one has EK Vardar F4's, top one has AP14's. I realized though, that once I finish up everything and close this guy back up, I'll have positive pressure, all coming via hot air from my front radiator. With the back of my GPU adding some heat, as well as VRMs and such, I imagine that all my top radiator will be getting is heat saturated air, which doesn't do much good in cooling things down. So I here I come for some advice!

I was thinking I could flip either my top fans or my front fans and go to extreme positive or negative pressure respectively. I'm concerned though that the positive pressure might make the air currents weird and trap heat in some spaces though, plus it feels weird to intake from the top. I've always been a proponent of letting hot air take the path it naturally wants to. That leans me toward negative pressure, but I know there will be more dust if I do that. Is it a noticeable amount of dust? How much more frequently would I have to clean it?

I could also put an intake fan in the back of my case, but I feel that would look ugly. I like the way fans look, I don't like the way fan frames look, especially with all their stickers...

I also considered removing the front radiator entirely. With a single triple (wait what? That sounds odd lol), I have enough cooling capacity for my GPU and CPU, plus some overclocking. It would also leave more room for my pump and res that are up front (pump is a pretty tight fit). I do like the extra cooling potential though, and I was toying with the idea going Crossfire in the not too distant future.

What do you guys think?

System specs:

i5-6600k @ 4.5GHz
R9 290 usually at stock, sometimes at 1135 Core, 1420 Memory
Swiftech MCP 655 with an XSPC top, running at speed 4

I have a couple 240 Rads as well, if that's relevant. One is a 60mm and the other is a 30mm. Both pretty low FPI. I think the 60mm is a black ice something or other and the 30mm is a Swiftech.
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The White Panther
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post #2 of 6
The H440 does have some airflow issues, but overall when water cooling both CPU and GPU having rads intake will give best cooling performance using ambient air. It also does create positive pressure which is generally considered the more go to scenario these days. Don't worry about too much heat getting trapped in the case because the positive pressure will push the warm air through any cracks or crevices, but I would always recommend a rear exhaust fan to help with this.

Also, air will go where it is pushed, "heat rises" is no longer valid in a case with fans.
 
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Crucial BX100 SSD 500GB EKWB EK-KIT L120 Corsair SP120 Koolance 2x140mm Radiator HX-CU1402V 
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Koolance 240 30 FPI Radiator Magicool 280 14 FPI Radiator Bitfenix Spectre PWM 120mm Fan ML140 140mm PWM Premium Magnetic Levitation Fan 
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Radnad View Post

The H440 does have some airflow issues, but overall when water cooling both CPU and GPU having rads intake will give best cooling performance using ambient air. It also does create positive pressure which is generally considered the more go to scenario these days. Don't worry about too much heat getting trapped in the case because the positive pressure will push the warm air through any cracks or crevices, but I would always recommend a rear exhaust fan to help with this.

Also, air will go where it is pushed, "heat rises" is no longer valid in a case with fans.

Oh boy does it have airflow issues lol. Before I upgraded to Skylake, my old SB motherboard had a VRM hit upwards of 100C if I remember right... Found it was due to an air deadzone in my case. I was still running only the stock fans at the time.

I guess for the heat rising part, I was thinking that hot air has a buoyant force, that I was always inclined to encourage. In this scenario though, that force is negligible compared to the fans? I guess I think too much lol rolleyes.gif

Thanks for the advice! I'll flip those fans around when I drain my loop. Maybe I'll get a magnetic dust filter for the top fans? Would that be a good idea or not very much help for dust?
The White Panther
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CPUMotherboardGraphicsRAM
Intel Processor Z170-A AMD Radeon R9 200 Series Kingston HyperX DDR4 
Hard DriveCoolingCoolingCooling
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CoolingCoolingCoolingCooling
Scythe Gentle Typhoon AP-14 x3 EK Vardar F4 x3 Alphacool NexXxos ST30 360mm Phobya DC-12 400 
CoolingCoolingCoolingOS
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MonitorMonitorMonitorKeyboard
Acer H236HL Acer H236HL Acer H236HL Microsoft Natural Ergonomic 4000 v1.0 
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Seasonic X-1250 NZXT H440 Logitech G502 Proteus Core Steelseries QCK 
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The White Panther
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CPUMotherboardGraphicsRAM
Intel Processor Z170-A AMD Radeon R9 200 Series Kingston HyperX DDR4 
Hard DriveCoolingCoolingCooling
Samsung 850 Evo 3D V-nand Primochill Tubing EK r9 290 backplate EK R9 290X Waterblock 
CoolingCoolingCoolingCooling
Scythe Gentle Typhoon AP-14 x3 EK Vardar F4 x3 Alphacool NexXxos ST30 360mm Phobya DC-12 400 
CoolingCoolingCoolingOS
Alphacool Cape Corp Coolplex Pro 15 LT EK Supremacy Evo Nickel/Plexi Primochill Rigid Ghost Fittings Windows 7 64bit Home Premium 
MonitorMonitorMonitorKeyboard
Acer H236HL Acer H236HL Acer H236HL Microsoft Natural Ergonomic 4000 v1.0 
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post #4 of 6
Quote:
Originally Posted by Saiyamoto View Post

Quote:
Originally Posted by Radnad View Post

The H440 does have some airflow issues, but overall when water cooling both CPU and GPU having rads intake will give best cooling performance using ambient air. It also does create positive pressure which is generally considered the more go to scenario these days. Don't worry about too much heat getting trapped in the case because the positive pressure will push the warm air through any cracks or crevices, but I would always recommend a rear exhaust fan to help with this.

Also, air will go where it is pushed, "heat rises" is no longer valid in a case with fans.

Oh boy does it have airflow issues lol. Before I upgraded to Skylake, my old SB motherboard had a VRM hit upwards of 100C if I remember right... Found it was due to an air deadzone in my case. I was still running only the stock fans at the time.

I guess for the heat rising part, I was thinking that hot air has a buoyant force, that I was always inclined to encourage. In this scenario though, that force is negligible compared to the fans? I guess I think too much lol rolleyes.gif

Thanks for the advice! I'll flip those fans around when I drain my loop. Maybe I'll get a magnetic dust filter for the top fans? Would that be a good idea or not very much help for dust?

yes, anytime you can filter the intake fans is always helpful, but with positive pressure it takes a while for dust to build up enough to worry.
 
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intel i5 750 Lynnfield Gigabyte GA-P55-USB3 ASUS Strix GTX 960 G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin... 
Hard DriveCoolingCoolingCooling
Crucial BX100 SSD 500GB EKWB EK-KIT L120 Corsair SP120 Koolance 2x140mm Radiator HX-CU1402V 
CoolingCoolingOSMonitor
Corsair AF140 Bitspower VG-NGTX960 Windows 7 Ultimate 64 bit Samsung Curved 27" S27D590C 
KeyboardPowerCaseMouse
Corsair Strafe RGB Apevia Iceburg 680 watts Apevia X-Sniper 2 EVGA Torq X3 Laser 
CPUMotherboardGraphicsRAM
AMD Phenom 9750 ASUS M3A78-CM PNY XLR8 GTX 460 Corsair XMS2 (4 x 1GB) 
Hard DriveCoolingCoolingPower
Hitachi 5K500 Silenx 92mm EFFIZIO Corsair SP 120 Red LED Antec 500watt 
CPUMotherboardGraphicsRAM
Intel Core i5-6400 Skylake ASRock A170A-X1/3.1 Gigabye G1 Gaming GTX 970 Windforce CORSAIR Vengeance LPX 16GB (4 x 4GB) 288-Pin DD... 
CoolingCoolingCoolingCooling
Bykski CPU-XPR-A High Performance Acrylic Nicke... EKWB Acrylic Nickel GPU Block Monsoon MMRS Reservoir Bykski BY-PUMP-XPH-PA Water Cooling Pump 
CoolingCoolingCoolingCooling
Koolance 240 30 FPI Radiator Magicool 280 14 FPI Radiator Bitfenix Spectre PWM 120mm Fan ML140 140mm PWM Premium Magnetic Levitation Fan 
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Windows 10 Pro Corsair RM Series 850 Thermaltake Suppressor F31 
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Spare Parts
(8 items)
 
 
CPUMotherboardGraphicsRAM
intel i5 750 Lynnfield Gigabyte GA-P55-USB3 ASUS Strix GTX 960 G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin... 
Hard DriveCoolingCoolingCooling
Crucial BX100 SSD 500GB EKWB EK-KIT L120 Corsair SP120 Koolance 2x140mm Radiator HX-CU1402V 
CoolingCoolingOSMonitor
Corsair AF140 Bitspower VG-NGTX960 Windows 7 Ultimate 64 bit Samsung Curved 27" S27D590C 
KeyboardPowerCaseMouse
Corsair Strafe RGB Apevia Iceburg 680 watts Apevia X-Sniper 2 EVGA Torq X3 Laser 
CPUMotherboardGraphicsRAM
AMD Phenom 9750 ASUS M3A78-CM PNY XLR8 GTX 460 Corsair XMS2 (4 x 1GB) 
Hard DriveCoolingCoolingPower
Hitachi 5K500 Silenx 92mm EFFIZIO Corsair SP 120 Red LED Antec 500watt 
CPUMotherboardGraphicsRAM
Intel Core i5-6400 Skylake ASRock A170A-X1/3.1 Gigabye G1 Gaming GTX 970 Windforce CORSAIR Vengeance LPX 16GB (4 x 4GB) 288-Pin DD... 
CoolingCoolingCoolingCooling
Bykski CPU-XPR-A High Performance Acrylic Nicke... EKWB Acrylic Nickel GPU Block Monsoon MMRS Reservoir Bykski BY-PUMP-XPH-PA Water Cooling Pump 
CoolingCoolingCoolingCooling
Koolance 240 30 FPI Radiator Magicool 280 14 FPI Radiator Bitfenix Spectre PWM 120mm Fan ML140 140mm PWM Premium Magnetic Levitation Fan 
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Windows 10 Pro Corsair RM Series 850 Thermaltake Suppressor F31 
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post #5 of 6
You might see if demciflex sells a top filter on there site, they usually make decent filters (not perfect as far as alignment and such some times) that do the job fairly well. I bought a set for my old Corsair 650D when I had it and it helped quite a bit.
post #6 of 6
Thread Starter 
Quote:
Originally Posted by Radnad View Post

yes, anytime you can filter the intake fans is always helpful, but with positive pressure it takes a while for dust to build up enough to worry.

That's right, the dust doesn't really get a chance to settle inside, most of it is blown out correct?
Quote:
Originally Posted by MythTFLfan29 View Post

You might see if demciflex sells a top filter on there site, they usually make decent filters (not perfect as far as alignment and such some times) that do the job fairly well. I bought a set for my old Corsair 650D when I had it and it helped quite a bit.

Thanks! I'll definitely check those out.
The White Panther
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Processor Z170-A AMD Radeon R9 200 Series Kingston HyperX DDR4 
Hard DriveCoolingCoolingCooling
Samsung 850 Evo 3D V-nand Primochill Tubing EK r9 290 backplate EK R9 290X Waterblock 
CoolingCoolingCoolingCooling
Scythe Gentle Typhoon AP-14 x3 EK Vardar F4 x3 Alphacool NexXxos ST30 360mm Phobya DC-12 400 
CoolingCoolingCoolingOS
Alphacool Cape Corp Coolplex Pro 15 LT EK Supremacy Evo Nickel/Plexi Primochill Rigid Ghost Fittings Windows 7 64bit Home Premium 
MonitorMonitorMonitorKeyboard
Acer H236HL Acer H236HL Acer H236HL Microsoft Natural Ergonomic 4000 v1.0 
PowerCaseMouseMouse Pad
Seasonic X-1250 NZXT H440 Logitech G502 Proteus Core Steelseries QCK 
AudioOtherOther
Corsair Void Wireless Gigabyte Wireless AC/Bluetooth Logisys UV Cold Cathodes 
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Reply
The White Panther
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Processor Z170-A AMD Radeon R9 200 Series Kingston HyperX DDR4 
Hard DriveCoolingCoolingCooling
Samsung 850 Evo 3D V-nand Primochill Tubing EK r9 290 backplate EK R9 290X Waterblock 
CoolingCoolingCoolingCooling
Scythe Gentle Typhoon AP-14 x3 EK Vardar F4 x3 Alphacool NexXxos ST30 360mm Phobya DC-12 400 
CoolingCoolingCoolingOS
Alphacool Cape Corp Coolplex Pro 15 LT EK Supremacy Evo Nickel/Plexi Primochill Rigid Ghost Fittings Windows 7 64bit Home Premium 
MonitorMonitorMonitorKeyboard
Acer H236HL Acer H236HL Acer H236HL Microsoft Natural Ergonomic 4000 v1.0 
PowerCaseMouseMouse Pad
Seasonic X-1250 NZXT H440 Logitech G502 Proteus Core Steelseries QCK 
AudioOtherOther
Corsair Void Wireless Gigabyte Wireless AC/Bluetooth Logisys UV Cold Cathodes 
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