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Positive air pressure

27-bit
By 27-bit
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I have the Lancool K7 hybrid case. I have 2 front intakes and modded a top intake (all 120mm). For exhaust only 2, the PSU fan and the Intel liquid cooler are pushing air out of the case.

The problem is that when the system is under load, the radiator fan speeds up pushing more air out and unfiltered air start coming in from vents located in the back of the case!!

Every week I have to open it up and clean it from dust!!

Should I add a fourth fan or do you think it is better to put something on the vents to filter the air?

btw the top intake is undervolted to 7v because it is so loud (Coolermater SickleFlow 120mm)

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Well, depending on how OCD you are... you could always just take some clear packing tape and seal the spots where air is leaking in... but, under load you obviously don't have enough pressure coming in (3x120) for your exhaust, which leads me to believe you may need to actually replace your intake fans. Get them bringing in more air, create more pressure. What are the front fans? I assume they are all filtered intakes... Maybe some Noctua or Corsair AF fans?

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It's very important you filter the intake air. No wonder you're getting higher than normal dust accumulation.

Case: Corsair 4000D Airflow; Motherboard: MSI ZZ490 Gaming Edge; CPU: i7 10700K @ 5.1GHz; Cooler: Noctua NHD15S Chromax; RAM: Corsair LPX DDR4 32GB 3200MHz; Graphics Card: Asus RTX 3080 TUF; Power: EVGA SuperNova 750G2; Storage: 2 x Seagate Barracuda 1TB; Crucial M500 240GB & MX100 512GB; Keyboard: Logitech G710+; Mouse: Logitech G502; Headphones / Amp: HiFiMan Sundara / Mayflower Objective 2; Monitor: Asus VG27AQ

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Filter all the intakes and switch all fans except for the radiator to pull air in. the only exhaust fan on my 600t is the top 200mm fan.I switched the back 120 to an intake to blow more air onto my 212EVO, that together with the 200mm front intake has made my case accumulate almost no dust in the past few months

Corsair 600T White | Gigabyte Z77-UD3H | Intel Core i5-2500k | 8GB Gskill Ares@1600MHz | Gigabyte G1 GTX970 | OCZ ZT 550 | Western Digital Caviar Blue 500GB | Western Digital Caviar Black 1TB | Samsung 840 EVO 250GB (boot) | Full Custom Loop | NZXT HUE

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Well, depending on how OCD you are... you could always just take some clear packing tape and seal the spots where air is leaking in... but, under load you obviously don't have enough pressure coming in (3x120) for your exhaust, which leads me to believe you may need to actually replace your intake fans. Get them bringing in more air, create more pressure. What are the front fans? I assume they are all filtered intakes... Maybe some Noctua or Corsair AF fans?
The 2 front intakes are the ones that came with the case (low rpm fans). The only fans that I could find in my area are the Coolermater SickleFlow which are loud when running on 12v.

And yes all intakes are filtered..

Should I go for the coolermaster ones, they are 2200rpm led fans.

=

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Filter all the intakes and switch all fans except for the radiator to pull air in. the only exhaust fan on my 600t is the top 200mm fan.I switched the back 120 to an intake to blow more air onto my 212EVO, that together with the 200mm front intake has made my case accumulate almost no dust in the past few months

Wont that let all the hot air go into my case! And should I also flip the PSU fan?

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Filter all the intakes and switch all fans except for the radiator to pull air in. the only exhaust fan on my 600t is the top 200mm fan.I switched the back 120 to an intake to blow more air onto my 212EVO, that together with the 200mm front intake has made my case accumulate almost no dust in the past few months

The PSU can stay down all on its own. The only way hot air can go in is if the room is hot, but when it comes to positive pressure the pros out weigh the cons by a long shot. Just have your top fan be the only exhaust and filter all the intakes and you're good to go

Corsair 600T White | Gigabyte Z77-UD3H | Intel Core i5-2500k | 8GB Gskill Ares@1600MHz | Gigabyte G1 GTX970 | OCZ ZT 550 | Western Digital Caviar Blue 500GB | Western Digital Caviar Black 1TB | Samsung 840 EVO 250GB (boot) | Full Custom Loop | NZXT HUE

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Well, depending on how OCD you are... you could always just take some clear packing tape and seal the spots where air is leaking in... but, under load you obviously don't have enough pressure coming in (3x120) for your exhaust, which leads me to believe you may need to actually replace your intake fans. Get them bringing in more air, create more pressure. What are the front fans? I assume they are all filtered intakes... Maybe some Noctua or Corsair AF fans?
That may make a difference - push more cool air into your case then the current ones are...

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Folding/Boinc Info - Check out the Folding and Boinc Section, read the Folding Install thread and the Folding FAQ. Info on Boinc is here. Don't forget to join team 223518. Check out other users Folding Rigs for ideas. Don't forget to follow the @LTTCompute for updates and other random posts about the various teams.

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Whaler_99 Links - "Green Machine" (watercooled), "Out of the Blue" (watercooled), My 4P Folding rigs, My multi GPU Folding Rigs, The Water Cooling FAQ, My 40TB Storage Server, My Folding Stats. The CM HAF XB review, the Aqualis Pro 450 review, the PrimoChill CTR Phase II Res review, the IcyDock ToughArmor 6x1 review, the 3x2 Storage Cage review, the 5x3 Storage Cage review, my Milwaukee Jobsite Backpack review, my Thermaltake Core X2 review, my CoolerMaster Storm Stryker overview. Link to DA Blogs home.

Follow me on Twitter for updates @Whaler_99

 

 

 

 

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If you do start flipping fans about, start with a base now - use some like HWMonitor[/url=http://www.cpuid.com/softwares/hwmonitor.html] to see what all your temps are. Then as you change things, you can see what makes a positive impact or negative, both in dust and temps. Honestly, if you cannot keep your temps decent, I just rather blow it once a week then run it a bit to hot...

Forum Links - Community Standards, Privacy Policy, FAQ, Features Suggestions, Bug and Issues.

Folding/Boinc Info - Check out the Folding and Boinc Section, read the Folding Install thread and the Folding FAQ. Info on Boinc is here. Don't forget to join team 223518. Check out other users Folding Rigs for ideas. Don't forget to follow the @LTTCompute for updates and other random posts about the various teams.

Spoiler

Whaler_99 Links - "Green Machine" (watercooled), "Out of the Blue" (watercooled), My 4P Folding rigs, My multi GPU Folding Rigs, The Water Cooling FAQ, My 40TB Storage Server, My Folding Stats. The CM HAF XB review, the Aqualis Pro 450 review, the PrimoChill CTR Phase II Res review, the IcyDock ToughArmor 6x1 review, the 3x2 Storage Cage review, the 5x3 Storage Cage review, my Milwaukee Jobsite Backpack review, my Thermaltake Core X2 review, my CoolerMaster Storm Stryker overview. Link to DA Blogs home.

Follow me on Twitter for updates @Whaler_99

 

 

 

 

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