The idea is the front fan pushes air into the box while the power supply fan and/or back fan pull it out. You want to keep the air moving through the case, across the boards, etc and keep it's velocity up.
On Fri, 26 Sep 2003 07:34:36 -0700 (PDT) Stephen Rose <[EMAIL PROTECTED]> wrote:
Actually, I disagree with this. In my experience, this doesn't really
help and can even starve cooling in some cases. The problem is the
front fan. It offsets the air that is being pulled out of the case from
the rear fans (the power supply and any other fans you might have back
there). Enlight cases, which are what I use, typically have a fan on
the power supply and one in front, low in the case. I take the one in
front and move it to a spot in the rear, just below the power supply
where there is a cut out for it on these cases. Yours may not have a
spot like that, but it's really good if it does. Now I have both the
power supply fan and the fan in the back of the case pulling air out of
the case, with no other fan trying to push air into the case from the
front. This lets air come in through any holes you have in the case.
Now you can use this air to cool specific things that need to be cooled,
like disk drives. I arrange for each drive to have air pulled across it
by this air. If you have a drive under the floppy, you can leave the
spot between the drive and the floppy open and remove the plastic blank
panel for it from the front cover. This lets air come in right over
that drive and cool it. For my servers, I follow a similar strategy for
drives in the 5.25 inch slots. Again, I leave the plastic blank panel
off the front cover to let air get at the drive if I put one there.
Since I can reach in an put my hand on the drive, I can check to make
sure that things are running cool. This works very well. Now if I had
a fan in the front pushing air in, it would starve the air coming over
the disks.
Steve Rose
In article <[EMAIL PROTECTED]> you wrote:Most cases have the one in front pulling it into the case while the one in back pulls it out. Try that and make sure air can flow through your case.
On Fri, 26 Sep 2003 14:26:38 +0200 mathieu perrenoud <[EMAIL PROTECTED]> wrote:After my yesterday's thread, I decided to buy one fan. When I saw the price, I buyed two instead. But now, I don't know how to place them in the case.
The boxes of the fans says that I should place them at the rear of the case and make sure they pull air from the inside toward the outside. Yesterday, you told me that it could be better to pull air inside and the guy at the shop told me that on his own box he had a fan in front pulling air inside and one at the rear blowing air outside.
I'm at a complete loss here. Should I follow box's instructions? or the guy's advice.
I think I'll first try with one in the front and one in the back. If it's stupid or even dangerous, any quick warning would be greatly appreciated.
--
mathieu
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