On Fri, 26 Sep 2003 09:05:46 -0700 (PDT) Stephen Rose <[EMAIL PROTECTED]> wrote:
> I agree with you that there won't be a vacuum if you have a fan in > front, but I want a vacuum so that's why I don't use one. As far as But, the point is that a vacuum is counter-productive. You *shouldn't* want a vacuum. Think of it this way (very simplified): A fan moves air. When the pressure on the intake side of the fan is lower than that on the outlet side, the fan moves less air (or, if you want to think of it like this, the fan must work harder to move the same amount of air). When the pressure on the inlet side is higher than that of the outlet side, it moves more air. Air cooling works by convection. The more air you can pass over a hot thing, the more heat dissipated. So, you want to move as much air as possible. It is therefore advantageous to have a blower (inlet fan) as opposed to a "vacuum" so that you can move as much air as possible. Now, your argument about directing air over specific devices does have some merit. Ideally you want drive plate fans blowing air over the drives, adding to the *positive* pressure inside your case. Cheers, Anthony. -- Anthony Floyd [EMAIL PROTECTED] -- [EMAIL PROTECTED] mailing list
