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Quick Question : My side case fan - blow in or out.

A

AmericasTeam

Golden Member
Should I have the side case fan blow in (as it does now) or out ?
It seems I'm allowing a lot of dust to be sucked in. Dusty grill is the evidence.
The case is a Thermaltake Tsunami Dream. It has a 120 in front and a 120 in rear.

thanks


btw its not oc'd yet. I will a little later, but only on air.
 
I'm assuming the 120 on the rear is exhausting? If so, I would keep the side one as intake, especially if you have a PSU with two fans. You can filter the fan with either a metal mesh, or fiber filter.
 
in. you want positive pressure on the pc to reduce dust migration, and more importantly, you want the coolest air directed into your CPU.
 
Originally posted by: AmericasTeam
Should I have the side case fan blow in (as it does now) or out ?
It seems I'm allowing a lot of dust to be sucked in. Dusty grill is the evidence.
The case is a Thermaltake Tsunami Dream. It has a 120 in front and a 120 in rear.

thanks

btw its not oc'd yet. I will a little later, but only on air.
Click to expand...

What CPU cooler do you have AmericasTeam?
 
ive had mine off for a long time from dust, it was fine as intake as it was positioned right over cpu...
 
more fans = more dust, no other way to put it. positive pressure, negative pressure, you still get dust.

generally side fans are intake. but i would recommend experiment both ways.
 
Intersting.

I have an 80mm fan in the front (intake) and an 80mm fan in the back (exhaust).

I have a side grill but no mountings for a fan. I could probably put a 120mm fan in pretty easily.

I wonder how it would work to have the front and back exhaust while the bigger side fan was used for intake?
 
I have a Chieftec Dragon full tower with a pair of 80's in the front blowing over each HD, and an 80 out the back. The 92mm side fan blows over the CPU but pulls in a tremendous amount of dust. I would have to clean it every 4 months or it would look like a dustbunny had gotten stuck halfway inside the case. I solved this by taping a very used fabric softener sheet over the fan, which filtered out all of the dust and allows 70% of the airflow to get in. Its obviously ghetto, but the case is tight up against my work case so you never see it.
 
Why used a very used dryer sheet? You could use a new one and have a fresh scent smelling case 🙂

BTW Zim Hosein, my CPU is a 3800+ X2.

thanks
 
Originally posted by: AmericasTeam
Why used a very used dryer sheet? You could use a new one and have a fresh scent smelling case 🙂

BTW Zim Hosein, my CPU is a 3800+ X2.

thanks
Click to expand...

A used dryer sheet will allow more airflow through it AmericasTeam, though not smell as nice 😀 If it's the stock CPU cooler, have the side case fan blow in.
 
Originally posted by: essasin
i would push air in so ill blow some fresh air to your vid card, and cpu
Click to expand...

too bad its placed above the video card

i want to duct it eventually directly to video card
 
Zim is exactly correct, and I wish I would have included that in my post. A new dryer sheet will actually cause more problems, as it eliminates about 60% of your airflow. And since my bench rig is set up in the laundry room, I have an ample supply of them to choose from !
 
if you're running stock amd or intel cooler, imo it should be exhaust to pull out the hot air from the cpu, unless u duct it to the back. just my 2c
 
I favor optimized conventional front-to-back airflow.

One problem with a side intake duct is that it can result in low air-flow over the hard drives - which are generally placed in the front of the case. The principal air flow path becomes in-the-side-and-out-the-back.

Side vents also add a noise path (from fans and drives) through the door vents.

The best low-restriction front intake air filter media I've found is the loose-mesh 1" thickness fiberglass material used in furnace/AC return filters.
 
Originally posted by: LOUISSSSS
if you're running stock amd or intel cooler, imo it should be exhaust to pull out the hot air from the cpu, unless u duct it to the back. just my 2c
Click to expand...
That's what I used to think. But let me explain it to you like this. If you are hot, you have a fan facing you to cool you off, not facing away from you do you?


 
the stock intel/amd cooler blows ait OUTward. if u have another fan blowing pressure into the fan in the opposite direction it will cause bad pressure problems and maybe slow down the fan? i dont know
 
Originally posted by: LOUISSSSS
the stock intel/amd cooler blows ait OUTward. if u have another fan blowing pressure into the fan in the opposite direction it will cause bad pressure problems and maybe slow down the fan? i dont know
Click to expand...

Stock (and almost all aftermarket) heatsinks blow down, toward the heatsink fins. Where are you getting your information? If you're feeling air coming away from the motherboard, it's because the air's being redirected after hitting the heatsink.

Either that our your fan's backwards.

-z
 
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