CPU fan "cone" or not

I

illuminate

[H]ard|Gawd
Joined
Nov 24, 2007
Messages
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i was wondering, my computer has a "fan cone" over the CPU fan:

CPUfancone.jpg


Is this ok? in all the pictures i see, no one has them.. does it make the airflow worse? or help it? Should i just take it out and just use the 90mm fan or no?

Thanks
 
heh, well that cone seems to be an integral part of your wiring scheme so be careful!

:D


jokes aside, i've seen ductwork like that on case fans but never on a cpu hsf.
 
It would work if your fan was blowing TOWARDS the heatsink... but it's sucking away from it, therefore making the cone useless.

Why is the fan sucking anyways?
 
did you remove that from the side of your case and put it on there?
 
His front fan is exhausting, too, instead of being an intake. WhoTF set up your case?
 
The front fan isnt hooked up yet, i got it, put it in, and realized that i put it in wrong and haven't changed it yet. The "cone" came on the CPU.

And maybe i read wrong... but i thought the CPU fan was suppose to blow out, and pull all the host air away from the CPU?
 
You want the CPU fan to pull the cooler air in the case and blow it over the heatsink which is why you have a duct to draw cooler air that is farther away from heated components.
 
Conventionally, most people prefer to have their fan draw in cool air and blast it down at the heatsink.

Ambient temperature outside the case will be lower than inside, as well as the advantage of air pressure if the fan were set to intake.
 
ok, i just switched the fan around, and it temperature just dropped 4 degrees in temerature
 
wow lots of cases have that "cone" but that is the first I ever heard of one comong with a cpu heatsink. I agree (and you testing proves it) the fan should be facing down. That duct (the more common term for the "cone") is looking for a vent in the side panel of your case so it can pull cool outside air in for the cpu. I typcally find them in the bottom of the cases I buy for customers and they are attached to the side panel. If you do not have a side panel vent that lines up with the duct, I would also try measuing temps with the duct installed and removed. I am concerned it might be so close to the side panel that it is restricting airflow but it is difficult to tell from the picture.

Here is a shot of the way I have seen 99.9% of ducts like that working.

http://www.newegg.com/Product/ShowI...iption=Rosewill+R218-P-BK+Black+Computer+Case

what case and what heatsink ? you got me curious, I want to look that up.
 
well, i bought about 4 months ago, upped the graphics card, and the PSU, its a gateway case, and a stock gateway heatsink.

and i typed it wrong when i was talking about the temerature. it dropped from 30-32 to 18-19 for each core !!!

and the duct, it is right at the vent in the side panel...
 
Side panel
DSC04036.jpg


DSC04037.jpg


DSC04034.jpg


excuse the cable management,, yeah it sucks, case is to small for all my PSU cables, lol
 
ahh you are golden then, same deal just done differently. The 120 to help the video card exhaust out the side vent is good call.
 
yeah, i just bought that one, and its just sitting there.. lol

Thanks bud for your help!
 
Clean up the wires and get rid of that ribbon cable your memory will be much cooler. The improved airflow will get that hot air from around the CPU out of the case faster.
 
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