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A duct going to your CPU?!

N

n0lram

n00b
Joined
May 11, 2000
Messages
30
Alot of people have told me that the fan on my case(side one) should be a duct goin to the cpu. Noww I have an "idea" of how it's suppose to go, but honeslty I have no idea how to make one, or exactly how it should be. I'd appreciate some help...

One last thing could someone link me to some affordable tools etc. for cutting out the meshes out of the case, thanks!
 
Do a search on CrazyPC or FrozenCPU as they have kits that do exactly what you want. Comes with aluminized ducting and fan adapters, intake grill, etc.. Mainly for 80mm or smaller fans.
 
http://www.overclockersclub.com/guides/fanduct.php

They made a duct going from a front fan to the cpu instead of a side fan, but I suppose the same materials and such would work. I prefer their design because you have air flowing over the cpu instead of onto it. I'd rather have air pass quickly over the heatsink on its way out of the case than hit the sink and disperse randomly around the case.
 
I've got a duct going from the back of the case to the heatsink, all i needed was a 90 degree close angle dryer duct elbow, a dremel and some time. Painted it black and it doesnt look bad at all, if i can get some pics ill post em for ya.
 
Originally posted by LeChuck
http://www.overclockersclub.com/guides/fanduct.php

They made a duct going from a front fan to the cpu instead of a side fan, but I suppose the same materials and such would work. I prefer their design because you have air flowing over the cpu instead of onto it. I'd rather have air pass quickly over the heatsink on its way out of the case than hit the sink and disperse randomly around the case.
Click to expand...

I tried a duct from the front of the case and because the duct had to be so long it actually cut off a lot of the air flow and made the temp jump about 3 degrees.
 
Well they managed a 6C drop so if you have the time and inclination, it's worth a shot.
 
i made a nice clear acrilic one, and join the sides with electrical tape - had the tornado mounted in the side window, with the duct going right over the hs (even had it narrower at one end, so all the air would go on the hs)

it worked very well, and was actually rather hard to notice unless you knew it was there
 
ducting.jpg


I made this duct out of 3 inch diameter flexible aluminum dryer ducting... 3$ from home depot is enough to make about eight of them. Good for at least a 5 to 7 degree temp drop.... Just make sure you clean your heatsink out often, it gets dirty quickly.
 
Originally posted by itx
*Bitchin pic here*
I made this duct out of 3 inch diameter flexible aluminum dryer ducting... 3$ from home depot is enough to make about eight of them. Good for at least a 5 to 7 degree temp drop.... Just make sure you clean your heatsink out often, it gets dirty quickly.
Click to expand...

It all depends where you vent from - if you vent from the outside, it'll never get dirty.. I've had a vent running from the external air to my radiator for three months - it's spotless - even with 100+CFM fans on both sides.
 
I might actually try this. I have a Vantec Tornado 92mm on my CPU right now, I was thinking I'd head to lowes tomorrow after work, find some good tubing, and then send it to the front of the case and put a fan up there to send air through also.

It's work a shot at cooling the chip better. I just want to maybe clamp or zip tie that duct to the vantec's sides though, as I'm not fond of aluminum tubing being somewhat loose in my case.
 
I was thinking about this as well, and I was considering getting one of the kits to go straight from my side fan into the heatsink and ignore the fan on the silent boost altogether. How well would that work?
 
See I have my Tornado 80mm sitting around and I don't run my gaming machine 24/7. I only run it when I'm playing a game or burning a DVD. So I can stand the sound. I was thinking about having the front fan be the 80mm fan sucking air into the tube, and at the processor end, having the 92mm blowing it onto the processor.

I think that would maximize the airflow. But at a major cost of noise. So I might have to hide my Gaming rig some more if it's too loud.

Of course, that would only be if the temperature change was highly noticeable.

Any suggestions?
 
Originally posted by ShepsCrook
I might actually try this. I have a Vantec Tornado 92mm on my CPU right now, I was thinking I'd head to lowes tomorrow after work, find some good tubing, and then send it to the front of the case and put a fan up there to send air through also.

It's work a shot at cooling the chip better. I just want to maybe clamp or zip tie that duct to the vantec's sides though, as I'm not fond of aluminum tubing being somewhat loose in my case.
Click to expand...

damn right...asking for trouble if it isnt secured properly...other option is to coat the tubing in something that is non conductive....i dont know what off the top of my head.
 
Well, I went to Lowes and found clasps/clamps that went with the tubing. I'm hoping they will hold well enough. I'll post my results ASAP as to the temp change. I'm also planning on sanding my heatsink to make it a mirror as well.
 
I didn't notice any temperature change. In fact. I had some problems when doing it and scrapped the whole idea.

My temps shot into the 60's then when I took it off, they were in the 50's.

Who knows. One bad experience I guess.
 
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