Tech Support Guy banner
Status
Not open for further replies.
1 - 20 of 22 Posts

·
Registered
Joined
·
312 Posts
Discussion Starter · #1 ·
To get to the problem right away... I currently have 2 fans in my CPU, 1 on the plastic side panel that blows in cool air, and 1 at the back that sends the hot air out. I'm planning on putting one\or two fans at the horizontal top of the case. The fan on the side of the case right now is very new and very strong, it is also got a wirling noise that's driving me batty.
With the (lets say... two fans) at the top of the case... what's the best air-flow direction to have...?

Oh and by-the-way, my case sits under the desk in and open cradle... there's approximately 2-1/2 inches clearance to the under of the desk.

Should the 2 fans (side and back) blow in, and the 2 at the top blow hot air out or the other way around ?

Please help. Is a fan blowing in the case noisier then blowing out?

Wogster.
 

·
Registered
Joined
·
14,017 Posts
This is the recommended way of setting up fans. My machine is set up exactly this way other than I have an intake fan instead of just vents.

There are many other ways to set up airflow but this one is the most simple.
 

Attachments

·
Registered
Joined
·
312 Posts
Discussion Starter · #3 ·
I don't have the option of a front fan, or a vent. I would if I could, but can not!!! I think that's why they put the fan in the side pannel....
 

·
Registered
Joined
·
312 Posts
Discussion Starter · #4 ·
If I put the 2 at the top blowing fresh air in...that would give the power supply fresh air, as well as the processor, the side and back fans could blow hot air out of the case..... a hard drive fan could later be put in if needed.

Wogster.
 

·
Registered
Joined
·
14,017 Posts
As long as it is low and to the front it is fine. Is it hooked to a fan header on the motherboard or just plugged into the power supply?

If it is on a fan header you can control the speed with speedfan. If it isn't you'd need a fan controller to quiet it down.
 

·
Registered
Joined
·
312 Posts
Discussion Starter · #7 ·
The fan on the side panel (the noisey one) is connected to the MB, what is Speedfan and how do I get it? I was thinking about a fan contyroller once the top 2 fans are in.
 

·
Registered
Joined
·
312 Posts
Discussion Starter · #8 ·
Do they have automated (digital) fan controllers, I don't know that much about them, but have heard of them recently. So the two at the top blow hot-air out, sounds logical.
 

·
Registered
Joined
·
1,544 Posts
Wogster said:
I don't have the option of a front fan, or a vent. I would if I could, but can not!!! I think that's why they put the fan in the side pannel....
Here's how I cool my prescott. I replaced the original window with one I had bought and cut to size at Home Depot. :eek:
 

Attachments

·
Registered
Joined
·
1,544 Posts
Skivvywaver said:
This is the recommended way of setting up fans. My machine is set up exactly this way other than I have an intake fan instead of just vents.

There are many other ways to set up airflow but this one is the most simple.
Hey Skivvywaver, I have seen that illustration before but if you don't have you cabling tied up it seems that the cables would so break up the airflow as to nullify it.
 

·
Registered
Joined
·
312 Posts
Discussion Starter · #13 ·
Wow... that's one big fan you've got on the side of your case... what size is that? I've never seen one that big. You also have a rear case fan. What direction do your fans go to move the air? all my cables are not wrapped just yet until I do all the runs that I need with the fans the the controller... I know it's a must for proper air-flow. I will get photo's of my case for you to see it soon....

Wogster.
 

·
Registered
Joined
·
8,812 Posts
I believe a side panel fan works better blowing outward instead of inward, unless you have ducting to the heatsink. We had a case at work that didn't have a place for a front vent, so I took my dremel and cut a portion out of the bottom of the front bezel underneath the case so that it would have a place for airflow.

As far as the noise from the side fan, I'd advise you to put a fan controller on it so that you can vary it's speed. Also, a lot of people don't consider the power supply when regarding airflow in the case. A good power supply with either dual fans or a oversized 120mm fan makes alot of difference in case temps.

If the reason your questioning the airflow in the case is cpu temps, then you might want to change the heatsink instead of casefans. Most people look at case fans first, but if the case has reasonable airflow, a quality heatsink applied correctly will normally make more difference in cpu temps.
 

·
Registered
Joined
·
1,544 Posts
Wogster said:
Wow... that's one big fan you've got on the side of your case... what size is that? I've never seen one that big. You also have a rear case fan. What direction do your fans go to move the air? all my cables are not wrapped just yet until I do all the runs that I need with the fans the the controller... I know it's a must for proper air-flow. I will get photo's of my case for you to see it soon....

Wogster.
That's a 120mm intake over the CPU and a 120mm exhaust out the back. They are both Antec Quiet fans
 

·
Registered
Joined
·
509 Posts
Front fans intake, rear fans exhaust, top fans exhaust side fans exhaust. I have done numerous tests and found that to be the COOLEST combo. And I overclock and mod my stuff so I know what I am doing more then the average joe.
 

·
Registered
Joined
·
312 Posts
Discussion Starter · #18 ·
120 mm Awesome... I haven't seen these fans anywhere here in Toronto, I must be looking in the wrong stores. I have taken photo's of my case for you's to look at, but i don't know how to upload them into this thread that we are chatting...
 

·
Registered
Joined
·
509 Posts
Just get an account with www.photobucket.com or something like that. Then just upload them to their server and post the IMG link.

And another thing. DO NOT BUY FANS FROM LOCAL STORES. They will rip the hell outta you. Get them from www.svc.com www.xoxide.com or www.voyeurmods.com Again DO NOT BUY FROM LOCAL STORES. I think I saw a 80mm at radioshack for like $15-20!!! And it wasn't even a GOOD fan. Just a radioshack brand I think. So get them from a online dealer, you will be MUCH better off.
 
1 - 20 of 22 Posts
Status
Not open for further replies.
Top