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post #31 of 39
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It's a computer!
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post #32 of 39
Quote:
Originally Posted by CalinTM View Post

Ok guys thanks. Next time i will build a new rig with a new case, probably after skylake and probably after nvidia pascal, i will make it right. Now, i dont care, really, temps aren't huge (like 90 on gpu and 85 on cpu) . And i clean it often.

You wouldn't have to clean it as often if you'd just add a couple of high CFM fans that have high static pressure and set them both up as intake, and make sure they're filtered.

I thought you said you are anal about dust.

I don't get it.
It's a computer!
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CPUMotherboardGraphicsRAM
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250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #33 of 39
Thread Starter 
Quote:
Originally Posted by Leyaena View Post

Since your main motivation is to keep dust out of your pc, I have a number of concerns with your implementation:

  • You mentioned having only one fan, which is set to exhaust.
  • You have cut an (unfiltered) opening into your side panel "to help push out hot air".

Since the only fan in your system is to exhaust air, you're creating negative pressure inside your case, meaning you're exhausting more air than is coming in.
It's generally agreed that positive pressussure combined with fan filters on the intake fans is the most efficient way to keep dust out of your system. Let me try to explain why below.

So, your rear fan is exhausting air, for the sake of argument let's say it's exhausting about 10 liters of air per minute.
Now, you have to ask yourself, there's 10 liters of air coming out of my case every minute. Where is that air coming from?
In a normal setup, the answer to that question would be that it's pulling the air in through all of the unfiltered nooks and crannies in your pc - the front grill where normally a fan would be mounted, gaps between your sidepanels and the case, even places like the expansion slot covers on the back of your case, seeing as they're usually perforated to allow some air to pass through.
The issue with this is that you have no control over where the air is coming from, and so it's impossible to keep the dust out of your system with something like a fan filter. The air moving into the system will be carrying along dust, and seeing as none of your intakes are filtered, it'll move into your system and stick to whatever it comes across.

Now, the reason I said that this is for a normal setup is that you cut a big gaping hole into the side of your case, thinking it'll help exhaust air from your system.
I'm not saying this won't help with case airflow, because it will, just not for the reason you thought when you made the hole. Since your case is dealing with a negative internal pressure when it comes to your fan config, the hole won't be exhausting air but instead pulling it in through there. Now, this'll be fresh air so it'll help cool down your internals, but it'll also have a (un)healthy portion of dust riding on it. So instead of making your dust problem better, it's actually making it worse.

What I would propose is this:

  • Add two fans to the front of your case, make sure they are filtered. You could either order some magnetic fan filters online, or if you're a fan of DIY solutions you could get some pantyhose and use that to filter the airflow coming into your case from the fans.
  • Patch up the hole in your side panel. This'll be less important once you add in the two extra fans in the front, but aesthetically speaking it looks a bit ghetto-rigged.

Now, what will change if you add the two fans to the front of your case, and set them to intake air?
Before you made this change you had 10 more liters of air leaving your case every minute than you had coming in. If you add two fans to the front that's 20 liters of air coming in. So the new result is that there's more air coming into the system than there is going out. Common sense would have you wondering, well if the negative pressure was bad, wouldn't positive pressure be equally bad?
The result would be the opposite of above: Instead of air looking to come into the case from every nook and cranny, the air is actually trying to escape through all of these holes (cause those 10 extra liters of air have to go somewhere).
Now, since you (hopefully) added filters of some description to the fans introducing air into the system, all of the air coming into the system will be (mostly) dustless. Sure, the extra air will leave the case through all of the same places I mentioned before, but that actually prevents dust from making its way into your case through all of the little holes and grills you don't have control over.
The result here is a way healthier airflow, and MUCH better dust control. Your temperatures will drop, your system will be cleaner, your components will live longer, and everyone's happy.

I'm very sorry for the editorial, by the way, but I just felt this needed some explaining, especially since your main quoted reason for only having one fan seemed to be dust control.

tl;dr: If dust is a concern negative pressure is bad, positive pressure is good. Make sure to filter your air intakes!

Quote:
Originally Posted by TwoCables View Post

You wouldn't have to clean it as often if you'd just add a couple of high CFM fans that have high static pressure and set them both up as intake, and make sure they're filtered.

I thought you said you are anal about dust.

I don't get it.

Ok guys, now is ok ? smile.gif

http://imgur.com/a/meeFW
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post #34 of 39

Is that all you're going to do? All you did was you put an exhaust fan on your side panel. So now your only fans are a rear exhaust and side exhaust. Am I remembering your original fan setup correctly? (nothing but one rear exhaust fan)

It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #35 of 39
That's what I remember as well.
Personally I would really add in some intake fans to the front of your case (as detailed in my earlier post).
It's just a suggestion, of course, but I think I've explained my reasoning pretty well earlier thumb.gif
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Behemoth
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post #36 of 39
Thread Starter 
Intake fan coming is right around the corner. Thats just the exhaust thing, not completed.
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post #37 of 39
Quote:
Originally Posted by CalinTM View Post

Intake fan coming is right around the corner. Thats just the exhaust thing, not completed.
In that case it's looking much better! thumb.gif
One thing I would still suggest doing is flipping around the side panel fan, so it pulls in fresh air instead of exhausting.

That way you'll have fresh air coming in at the level of your gpu, and your case will have positive pressure overall, helping a lot with dust collection.
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ASUS PG279Q Dell UltraSharp UP2716D Das Keyboard Professional 4 Corsair HX1200i 
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post #38 of 39

But it needs to be pulling air in through a filter. Either filter it from the outside or inside. Either way, you need to filter all air being sucked into the case whether the air is being pulled in indirectly with negative pressure or directly with positive pressure.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #39 of 39
Thread Starter 
Yes i know, still have some dust filters from my case, will cut them, and probably hot glue them in place, then put an intake fan, gonna buy a high CFM one.
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Hard DriveCoolingOSMonitor
Samsung 850 EVO 500Gb [AHCI] Noctua NH-D14 Windows 10 Home 64-Bit 10586.420 (FPP/retail key) BenQ XL2411T [Dual-Link DVI, 144Hz] AUO M24HW01... 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 2014 [green switches] Enermax Revolution 87+ 750W and APC Back-UPS 950VA Phanteks Evolv Atx Tempered Glass Black + ATX 2... Razer Mamba 2015 Tournament Edition 
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SteelSeries QcK Mini Asus Xonar DGX 
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PC
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CPUMotherboardGraphicsRAM
Intel® Core™ i7 3770K @4.5Ghz (Multiplier OC) 1... MSI Z77A-GD65 [10.10 BIOS] MSi GTX 980 GAMING + MX4 @1544mhz/1.262v; +450M... Geil Black Dragon 4x4Gb 1866Mhz [XMP] 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500Gb [AHCI] Noctua NH-D14 Windows 10 Home 64-Bit 10586.420 (FPP/retail key) BenQ XL2411T [Dual-Link DVI, 144Hz] AUO M24HW01... 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 2014 [green switches] Enermax Revolution 87+ 750W and APC Back-UPS 950VA Phanteks Evolv Atx Tempered Glass Black + ATX 2... Razer Mamba 2015 Tournament Edition 
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SteelSeries QcK Mini Asus Xonar DGX 
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