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I have 3 fans on my rig, which way should each one face?

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March 27, 2014 6:34:46 PM

I have a fan on on my PSU that blows outward.. I have a fan in the front under my CDROM that blows inward.. and a fan on my sidepanel that blows inward.. I aint the smartest but shouldnt 1 of the two that are blowing inward, blow outward? or is this setup normal?

More about : fans rig face

March 27, 2014 6:38:59 PM

The general, basic idea is to have air come in the bottom/front and go out the top/back, isn't there an exhaust fan on the back of your case? There should be.

Your power supply will blow air out and you can generally choose whether it blows air upwards into your case or down and out of your case (assuming your case has mesh/air filter to let you point it down safely)
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March 27, 2014 6:41:47 PM

Seeking Solace said:
The general, basic idea is to have air come in the bottom/front and go out the top/back, isn't there an exhaust fan on the back of your case? There should be.

Your power supply will blow air out and you can generally choose whether it blows air upwards into your case or down and out of your case (assuming your case has mesh/air filter to let you point it down safely)


if the exaust fan is on the psu then yes.. if not.. then no.. other than psu fan which blows out i only have 2 others that blow inward.. would it be a good idea to turn the one on my sidepanel so it blows outward? because it faces right across from my CPU and the cpu fan blows towards the sidepanel fan, vice verse, so I think its trapping heat in my system.. if all that makes sense
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March 27, 2014 6:43:24 PM

What case do you have?
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March 27, 2014 6:54:25 PM

So you have this, which looks like it has the PSU at the top and a fan on the back. So the PSU would blow air down, into the case and the fan on the back would be the exhaust.

I don' think I've heard of a case that doesn't have an exhaust on the back. If you really don't have one, you'll want to invest in one. The specs on Newegg list it having a 120mm exhaust.
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March 27, 2014 6:56:58 PM

Seeking Solace said:
So you have this, which looks like it has the PSU at the top and a fan on the back. So the PSU would blow air down, into the case and the fan on the back would be the exhaust.

I don' think I've heard of a case that doesn't have an exhaust on the back. If you really don't have one, you'll want to invest in one. The specs on Newegg list it having a 120mm exhaust.


imabout to take a picture of the inside while on... gimme like 4 min.. stay on please and to be clear my exhaust dont blow down into th case.. it faces out of the back blowing outward.. away from the case
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March 27, 2014 7:03:31 PM

Your PSU isn't your exhaust. You should consider your PSU to be acting on its own to try and cool itself.

The decsription of the case on newegg says it has two 80mm fans blowing air into the case, and a 120mm on the back of the case blowing air out.
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March 27, 2014 7:04:20 PM

It prob doesnt even matter...
Negative pressure works too.
I use 5 intake fans so I get a nice cool air blowing out of the case in summer and use it as air conditioning
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March 27, 2014 7:16:52 PM

Seeking Solace said:
Your PSU isn't your exhaust. You should consider your PSU to be acting on its own to try and cool itself.

The decsription of the case on newegg says it has two 80mm fans blowing air into the case, and a 120mm on the back of the case blowing air out.


sorry it took so long.. but here is the picture of the inside.. remember there are two other fans on the SIDE PANEL and one in front both blowing in (shown in your picture of my case) .. there is no other fan besides the psu fan, my cpu fan, and my gpu fan

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March 27, 2014 7:25:25 PM

Ok, so the 120mm fan USED to be mounted on that back grid there.
The fan I can see is the stock cooler on your CPU, I thought you were talking about the Power unit, but that doesn't matter. If you are worried about the air flow, you can buy a fan quite cheap and install it yourself easily.
you could try turning the fan on your case window around so that it blows air out instead of in, but that's probably not as good an idea.
You can used HWmonitor to check the temp across your system to see if cooling is an issue without the exhaust.
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March 27, 2014 7:25:37 PM

YUP it says here that it comes with a 120mm fan on the back! THE GUY WHO BUILT IT FOR ME MUST HAVE RIPPED ME OFF!!!!!!!!! The whole system was TRASH to begin with Ive had to upgrade the gpu, cpu, and put more memory in it since I got it and it was advertised as a good gaming PC... back then I was stupid and didnt know about this site..

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March 27, 2014 7:28:36 PM

Seeking Solace said:
Ok, so the 120mm fan USED to be mounted on that back grid there.
The fan I can see is the stock cooler on your CPU, I thought you were talking about the Power unit, but that doesn't matter. If you are worried about the air flow, you can buy a fan quite cheap and install it yourself easily.
you could try turning the fan on your case window around so that it blows air out instead of in, but that's probably not as good an idea.
You can used HWmonitor to check the temp across your system to see if cooling is an issue without the exhaust.


in regards to HWMonitor. Im having a TOTALLY seperate issue with is what everyone thinks is bad temp sensors... heres the thread I posed about it, http://www.tomshardware.com/answers/id-2080190/fast-deg... .. alot of details and pictures of what is going on if you want to check it out.. thats why Im looking into more airflow to make sure that the problem Im having is working on being resolved.. check out that other thread though.. it relates to my fan question
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March 27, 2014 7:31:58 PM

All part of the experience, I guess. Through it you've found Tomshardware forum, which I find to be brilliant for learning, and Newegg which is a good place to read up on hardware as well as user reviews.
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March 27, 2014 7:35:44 PM

Seeking Solace said:
All part of the experience, I guess. Through it you've found Tomshardware forum, which I find to be brilliant for learning, and Newegg which is a good place to read up on hardware as well as user reviews.


yea its just frushtrating to keep dumping money into this forsaken machine that Ive had problems with since day 1.. lol.. so Ill turn the fan around and see if it helps.. thanks for the advice n tips
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Best solution

March 27, 2014 7:45:58 PM

Jason Hutchinson said:
Seeking Solace said:
All part of the experience, I guess. Through it you've found Tomshardware forum, which I find to be brilliant for learning, and Newegg which is a good place to read up on hardware as well as user reviews.


yea its just frushtrating to keep dumping money into this forsaken machine that Ive had problems with since day 1.. lol.. so Ill turn the fan around and see if it helps.. thanks for the advice n tips


Honestly, it looks like a case of more trouble than it's worth (just skimmed through your thread) You have a lot of solid posters there giving you advice and they are generally bang on the money when they go at a problem.
From what I read, it looks like your build is handling whatever you are doing on it anyway, regardless of your fans.

If you are still worried about it, the best thing would be to get a cheap 120mm fan to get some exhaust working on the machine, and from the looks of it you might want to think about a new tube of thermal paste and reapplying the stock cooler to your CPU.

After that, it might be time to start saving for a new system in preparation for a day this one might give up. They are pretty cheap to build with the ability for plenty of upgrades as time passes and you'll have a decent 750 GTX to gut out of this one to get you started on the next when the time comes.

Give it your options some thought, make a plan and good luck.
Just remember, there's always a hoard of helpful and knowledgeable(much more than myself) posters here to offer you solid advice and guidance.

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March 27, 2014 8:13:28 PM

Seeking Solace said:
Jason Hutchinson said:
Seeking Solace said:
All part of the experience, I guess. Through it you've found Tomshardware forum, which I find to be brilliant for learning, and Newegg which is a good place to read up on hardware as well as user reviews.


yea its just frushtrating to keep dumping money into this forsaken machine that Ive had problems with since day 1.. lol.. so Ill turn the fan around and see if it helps.. thanks for the advice n tips


Honestly, it looks like a case of more trouble than it's worth (just skimmed through your thread) You have a lot of solid posters there giving you advice and they are generally bang on the money when they go at a problem.
From what I read, it looks like your build is handling whatever you are doing on it anyway, regardless of your fans.

If you are still worried about it, the best thing would be to get a cheap 120mm fan to get some exhaust working on the machine, and from the looks of it you might want to think about a new tube of thermal paste and reapplying the stock cooler to your CPU.

After that, it might be time to start saving for a new system in preparation for a day this one might give up. They are pretty cheap to build with the ability for plenty of upgrades as time passes and you'll have a decent 750 GTX to gut out of this one to get you started on the next when the time comes.

Give it your options some thought, make a plan and good luck.
Just remember, there's always a hoard of helpful and knowledgeable(much more than myself) posters here to offer you solid advice and guidance.



ty very much!
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!