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Can I use the top of my casing for air intake?

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Posted · Original PosterOP

I'm making a pc and the casing I chose isn't too open of the fans to intake much air from the front. So I was thinking of putting them at the top as intake fans. Can I do that? Or should I keep it as is.

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why not? but if it doesnt have air filter it will get dusty rather quickly

Studying abroad, ditched the crappy laptop for a mobile workstation/gaming laptop double Hate the thermal paste and memory timings

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V undervolt) GPU: GTX 1060 6GB Mobile (1696MHz 0.812V ~ 1860MHz 0.95V) RAM: 12GB DDR4-2666 19-19-19-43 2T Storage: 128GB Toshiba NVMe SSD (KBG30ZMV128G) + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) Monitor: 1080p 120Hz IPS G-sync


The best thing to do is reading the clock speed that doesnt end in a pair of zeros. Software voltage readings are wrong if your motherboard's not a high end model

CPU: i7-2600K 4493MHz (multiplier: 43x) 1.35V (software) --> 1.4V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 104.5MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 10-11-11-30 2T 2133MHz, custom: 10-11-10-30 1T 2229MHz) GPU: Asus GTX 1070 Dual SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (OC'd 150Hz) TN Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1


Results: Cinebench R15 Single thread:159 Multi-thread: 770 (thx Meltdown Spectre patch) Super Pi (v1.5 from Techpowerup, PI value output) 16K: 0.11s 1M: 8.4s 32M: 7m 45.9s

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2 minutes ago, Symbiode said:

I'm making a pc and the casing I chose isn't too open of the fans to intake much air from the front. So I was thinking of putting them at the top as intake fans. Can I do that? Or should I keep it as is.

Technically you can, but thermal dynamics heavily disagree with this setup.


Use them as exhaust.  Where your intake fails, your heavy exhaust will cause what is called "negative pressure" which will pull air in from every crack in the case.  Depending on the environment you live in, this may mean you will have to clean your PC out every few months from dust bunnies, or not.  I have a negative pressure case sitting in the back of my room that's been running for over 1 year...and all I have had to do was clean the intake screens twice in that timeframe.  Inside the case is immaculate.

My PC: ASUS M5A99FX PRO r2.0, AMD FX-8350, 2x Gigabyte HD 7850 2gb in crossfire, 16gb (4x4) Corsair Vengeance DDR3, Corsair HX850 PSU, Corsair H100i GTX 240mm AIO cooler, 500gb Samsung 840 EVO SSD, 2x 340gb WD Mech Drives, CoolerMaster HAF XM Case with 14 fans total in the case (2x200mm, 4x90mm, 1x80mm, 4x120mm, 1x140mm, 2x40mm - 100% CPU and 2x 100% GPU's 1 hour torture test - 56c socket, 41c CPU, 60c GPU1, 50c GPU2 mmmmm temps - got timestamped screenshots to prove it)

Wifes PC: ASUS B350-PRIME, Ryzen 7 1700, XFX R7 260X 2gb GPU, 16gb (2x8) Patriot Viper DDR4 2133, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 256gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, 640gb WD Blue 7200 RPM Mech drive, Rosewill Nautilus 1.0 Case (7x120mm, 2x90mm fan setup)

Media Center: HP Pro 6300 MT, i5-3470, Sapphire HD 7750 1gb GPU, 8 gb (4x2) Gskill Ripjaws DDR3, Lite On 320w PSU, Stock HP Cooler, 60gb Patriot SSD boot drive, 1tb WD 7200 RPM Mechanical drive, 500gb Toshiba 7200 RPM Mech Drive with Win 7, Rosewill 4x External 1x Internal USB PCI hub, ASUS AC55BT wifi adapter, LG Blu Ray/M-Disc/DVD/CD Player/Burner, LG DVD/CD Player/Burner, 3.5" Media Card Reader

A couple laptops and tablets around the house

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Sure, you can if it makes sense for your cooling config



Fractal Define R4, Fractal Silent Series R2 fan x3, BeQuiet Dark Rock Pro 2Super Flower Golden Green 550W Gold, Gigabyte Z87X-UD4H, Crucial Ballistix Sport 2x8GB DDR3 1600MHz CL9Intel i7 4770k 4.6GHz OC, EVGA GTX 1080ti FTW3 OC 2038MHz Core/12400MHz VRAMEizo Foris FS2333 60Hz 1080p, AOC AG271QG 165Hz+G-Sync 1440p, CM Storm QuickFire Ultimate, Logitech G502 Spectrum, Steam Controler, Sennheiser HD600, S.M.S.L M6 Mini DAC, Blue Yeti (black) microphone, Huawei Mate 8 phone.

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What case? What CPU cooler? Do you have these already and have you tested temps? What is rest of fan config like?

^^^^ That's my post ^^^^
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