CPU aur ducts
- Thread starter Maethor
- Start date
haha it let me post a post with nothing in it. sorry about that i didnt edit because i want to preserve the flawness of the post haha. Anyways are the air ducts worth it for someone who is thinking about OCing on air?.
IF I were to run a duct to my CPU fan, I would want the air filtered to help keep the HS clean. That will require another fan at the intake end of the duct which will have to be able to supply more CFM than the CPU fan in order to overcome the filter resistance and still supply all the air the CPU fan requires.
. IAC, it is not very expensive to find out for yourself. Computergate.com has a cheap duct (about $6. on sale recently) and fans and filters can also be gotten from jab-tech and svc but they don't have the cheap duct...
. Most that have tried it with a fan at the intake end do report both a lower CPU temp and a lower system temp. Those that use the duct unfiltered and without an intake fan report mixed results. I do not care for the "Intel Thermal Advantage" unfiltered duct that comes with a lot of cases - that sort of directs air in the general direction of the CPU. That reminds me of a scene in a Monty Python movie: "I spit in your general direction..."
.bh.
. IAC, it is not very expensive to find out for yourself. Computergate.com has a cheap duct (about $6. on sale recently) and fans and filters can also be gotten from jab-tech and svc but they don't have the cheap duct...
. Most that have tried it with a fan at the intake end do report both a lower CPU temp and a lower system temp. Those that use the duct unfiltered and without an intake fan report mixed results. I do not care for the "Intel Thermal Advantage" unfiltered duct that comes with a lot of cases - that sort of directs air in the general direction of the CPU. That reminds me of a scene in a Monty Python movie: "I spit in your general direction..."
.bh.
Maybe, but if you can move enough air with just some 162mm fans (that what I have, no joke) and don't mind the sound then it's the same. I think all the duct work is just to keep the noise down, not to help cool.
That's a new eTailer for me. They still have the duct, but the photo could be a lot better. I "think" it has a center section similar to a clothes dryer's flexible ducting, with stiff terminations that look like they should match up to 80 mm fans on each end. There is no indication how far it will reach (oops! I hadn't scrolled down far enough! It's there, 15").
One of the manufacturers of cpu heat sink devices sold a short one with a bend in the middle and an 80 mm fan at the big end. The idea, I think, was to move the fan a distance from the actual heat sink, so the central dead spot, under the hub, of fan-directed airflow would be squeezed out by the duct. It wasn't intended to reach all the way to an outside air source, however.
I still like that bottom fan idea, a great deal better than a second front panel intake, with the limitations on intake area involved there (sorry, folks, one of the travails of senior age memory changes -- there is another air ducts thread in which I've included the bottom panel intake fan comments).
Personally, the only way I would use an Air duct if I had an air conditioning unit to push air through it.
Kiwi,
That duct fits 70, 80 and 92 mm fans/mountings - see the notches all the way out at the corners, those are for 92 mm.
.bh.
That duct fits 70, 80 and 92 mm fans/mountings - see the notches all the way out at the corners, those are for 92 mm.
.bh.
i'm all about cpu duct mods as they are one of the cheapest yet beneficial mods you can do. i bought a $4 piece of tapered tin pipe at home depot and put it on the inside of my case window. the end of the pipe comes within 1/16-1/8" of my xp120 heatsink. of course, i cleaned it really well to get rid of any tiny metal shards/fragments after cutting it. i also lined the inside of the pipe with duct tape to reduce friction. a 120mm, 108cfm sunon fan (running about 55-60%) sits on the outside of the case.
i didn't bother with filters or any crap like that. just clean it out every now and then with a can of compressed air.
if i had to do it all over again, i would use this for a cleaner look.
http://www.frozencpu.com/duc-02.html
the point of any duct is to cool your cpu with ambient room-temp air instead of heated air in your computer case. and like kiwi said, separating the fan from the heatsink helps cooling even more by moving the pocket of dead air (shadow) away from the CPU. so i did both. i'm happy with my results, 43C prime-load temps (according to software monitor, anyway). room temp ~20C.
i didn't bother with filters or any crap like that. just clean it out every now and then with a can of compressed air.
if i had to do it all over again, i would use this for a cleaner look.
http://www.frozencpu.com/duc-02.html
the point of any duct is to cool your cpu with ambient room-temp air instead of heated air in your computer case. and like kiwi said, separating the fan from the heatsink helps cooling even more by moving the pocket of dead air (shadow) away from the CPU. so i did both. i'm happy with my results, 43C prime-load temps (according to software monitor, anyway). room temp ~20C.
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