Help out your exhaust fans

a Rather simple tip, but if your case temps are marginal, or if your wife likes it ungodly warm in the house during the winter :rolleyes: try helping your exhaust fans do a better job by putting a 'pull ' fan on the other side. It can drop ambient case temps by 5c or more. here I converted HDD dual 60mm cooler to get more PSU heat extracted, and another 140mm fan on the other side of my interior rear exhaust fan. It moves a lot of air/heat from the case. My case sensors showed on average a 4-6C drop during high load activities.

in my case i could but an intake fan on the outside as my radiator fan pulls air in from the rear. not sure i would see such an improvement though as the 5870's exhaust is right below; would probably just recycle the warm air. it's a nice idea though because two fans will most definitely move the air out faster. just be careful you don't get your fingers in there when reaching behind the tower

Now ya tell me! :wave: (I do have a grill I am gong to throw on there) yea its more for us schleps with air cooling It actually works exponentially well, the out side fan actually speeds up up the inside fan. It feels like 3x the air is leaving the case. (i have no way to demonstrate that of course) but the ambient temp drop is significant.

Um, golly, it's like turbocharging, but backwards.

Why not add to the risk factor and go with metal blade fans?

BTW, this works with stock type Intel CPU coolers as well. Just put a fan in the side air duct. This would be like turbocharging, only forwards.

I said it was a "simple tip" and there is a guard going on it....or maybe i like to live dangerously...

At this point, allow me to digress. Forgive me for spelling, "golly" incorrectly. Everyone plainly knows tht it's spelled, "gah-lee"! Or is that, "goll-lee". It's been so long since I've used the term.

I'm still for using metal blade fans. This would save many dollars. You wouldn't need a pit bull to guard your computer. Just put a proximity detector on it, and change the Windows sounds to a dog bark. :rolleyes:

Show them a picture http://edwardboches.com/wp-content/uploads/2009/12/BlownAway.jpg

I thought 'golly' was the correct spellin.

So's ya means ta tell me thet that thar wuz spelt all proper like?

I hope you followed that image link.

Haha, that was the old Maxell campaign circa 1977 or so?

Actually, I'm not sure. The speakers in the photo are JBL Century 100s, (home version of their L4310 studio monitors (12" 3 way bass reflex). But Maxell does sound familiar.

I think its Maxell's ' sounds so close to live' ..or something like that.

you may find this interesting Cap...if your an audiophile, I have a pair of Altec model 19's, the home version (walnut)

Definitely a Maxell ad.

Although, given that they developed that "West Coast Rock Sound", I'm surprised that JBL never went that route with a campaign.

I say, "don't s** around with those piddling little twelves, go straight out a grab a pair of fifteens. Or mebee two pair, if you're not in a row house.

Yeah, '77 sounds about right! Now you'll have to excuse me, I have to go listen to Bruce Springsteen's "Glory Days", on my crappy dual 8" woofer Chinese Jibbles.

see the edit in my above post *****

Actually we have talked a bit about that. I remember linking Klipsch "La Scala" theater speakers, which are a rough equivalent of your Altecs.

Here's something to think about; the inverse square law's effect on air movement by a loud speaker. What it goes to is this; if a 15" speaker produces "X" air movement @ 1/8" of cone travel, then to move the same amount of air with a 4" loudspeaker, it requires a cone travel of 2 full inches.

I guess that kinda obviates the fact that a 4" sub-woofer, at worst is a continuing delusion, and at best, is just a plastic, craptastic, figment of some ad exec or juvenile delinquent's imagination.

This is not too far off topic is it? After all, this thread started out as a dialog about air movement. Loud speakers are after all, one of, if not the most, creative and accurate air movement machines that we've ever come up with.

The good old days...or at least the old days....

oh that's right we did talk about that a couple of years ago in an "off topic' thread" back to your point on air movement. I had a 68 caddy with a 18" sub in the trunk. this other guy could not figure out why his three 8" wouldn't thump like mine did. as a matter of fact, on a hot august day in 19......something, it shattered the rear window whilst i had Pink Floyd's 'Meddel' cranked up......it made my system the "baddest ***" in the hood.:rolleyes:
That 18" subwoofer moved so much air (vibration) that a friend of mine with asthma could not be in the car with it turned up..(mine went to eleven) because it set off an asthma attack...am I rambling?...okay i will stop rambling...I thought it was more reminiscing.

"If it's Worth Overdoing, It's Worth Overdoing Completely"......

I would have thought that,"Time" from "Dark Side of the Moon" would have been the straw that broke the windshield's back, so to speak.

It would seem that you ran short on "asterisks". :rolleyes:

Well if your still going way off topic from the original fan debate and concerning speakers, I have a pair of Tangent 500s and they sound amazing. Can't say I've ever heard any of the ones your "rambling" on about but can appreciate the times when speakers were speakers and could make small houses bounce, well maybe not but they just sound so much better for some reason. And for the fan idea, its good, but looks funky, having a fan on the outside of the your case all the time. On the back its not so bad I guess just odd, maybe I'll give it a try but can't imagine a 5 C improvement.

Read this about the JBL D-130: http://www.audioheritage.org/html/profiles/jbl/d130.htm The flux field was so controlled in these drivers, you could put a piece of iron right on the back cover of the magnet, and it would just fall to the floor. The entire 12,000 Gauss flux density, of a 12 pound Alnico V magnet, was centered directly in the voice coil gap. These speakers were designed to work with the 20 watt peak tube amps of the day, and produced, (at least), 103DB @ 1 watt @ 1 meter sensitivity. These were 15" paper cone drivers, that had the transient response of a pair of decent headphones.

Once upon a time, when men were men, and the house phone was the best made piece of hardware in the home, these were built way, way, better than that.

In a 2 way speaker system, the D-130 would be paired with an 0-75 Ring radiator tweeter. These tweeters were used also as ultrasonic stoplight triggers, (In an emitter/ receiver array, a car pulls past, breaks beam, light changes), until people got wise and started stealing them, (true story).

@Red...James B Lansing formed Altec-Lansing, then started JBL Sound. Tragically, he committed suicide. It is my understanding that part of the motivation for this, was a series of patent infringements. Wiki page on Altec...http://en.wikipedia.org/wiki/Altec_Lansing

These are not my speakers, mine are in storage, but these is them.
The efficiency of these (also called "the voice of the theater") is amazing. I ran two model 19's and a pair of altec 'Madrids' @ 4 ohms with a Nakamichi PA 7, and to this day, I think its the best sounding system I have ever heard. The only thing that I think would make it better, would be with a Carver Silver series Tube amp.

Speakers made in real wood cases. I'm taken back....to a time before I was born.


Anyway back on topic. I was thinking of doing something similar for my case. I already have push pull config on my radiator. I'm trying to think of how many out take fans I have on my case and if it would help much but probably not. Its my little "war machine," as named by one of my younger brothers recently. I guess its something to look into once I get my case back from paint.