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120mm AIO Radiatior FAN Orientation

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Posted · Original PosterOP

Hi Techies, looking for some advice on radiator fan orientation.


ROG STRIX B550-E with Ryzen 3 3300X (will upgrade the processor in a year or so)


6 x 2TB Sandisk x600 1TB with upto 16 more going in as and when space is needed.

2 x WD RED NAS 3TB (will be replaced with SSD over time)


Silverstone GD08B HTPC case Fans (front to back)

All fans are Be Quiet Pure Wings 2 PWM. 


Along the Front bottom of the case as intake

1 x 120mm and 3 x 80mm under the drive chassis

Right side as intake

2 x 120mm

Rear as exhaust

2 x 80mm


Silverstone says to allow a max of 138mm for the cooler rules out most Tower Air Coolers, the two TF coolers I did like sound of wouldn't provide much clearance once the lid is on which is why i'm opting for a 120mm AIO which will be mounted into the bottom of the 5 1/4" Optical Bay above the 120mm intake. That will obviously push air into the radiator, my question is do I mount a fan on top of the radiator pulling air through or should I mount it on top and push cool air down and have the warm air circulate around and out the top vent?.







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Pushing or pulling through a radiator, as long as air is still going the same way, has a negligible effect on cooling. Go with whatever makes it easiest to install.





Intel Core i7-3820 | Corsair H100i | ASUS P9X79-LE | 16GB Patriot Viper 3 1866MHz DDR3 | MSI GTX 970 Gaming 4G | 2TB WD Blue M.2 SATA SSD | 2TB Hitachi Deskstar HDD | 1TB WD Black HDD | Corsair CX750M Fractal Design Define R5 Windows 10 Pro / Linux Mint 19 Cinnamon



Dell XPS 15 9560 4K Touch | Intel Core i5-7300HQ | 12GB Generic (Crucial?) 2133MHz DDR4 | Nvidia GTX 1050 | 256GB Toshiba M.2 NVMe SSD | Windows 10

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