TMD fan's - pretty interesting [Archive]

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Angus_McFear

07-12-2002, 10:25 AM

Check this review of the TMD fams... very interesting concept for cooling solutions.

http://www.dansdata.com/tmdfan.htm

vee_ess

07-12-2002, 12:52 PM

Good concept. It works exactly the same as on other motors, just with the electromagnets on the outside and the regular magnets on the inside.

Instead of wasting space that could be used for air movement, use the unused space. I like it.

chaplndave

07-27-2002, 10:55 AM

The concept of TMD fans is great...but what I want to know is, can you get a higher CFM rate and a lower decible rate for some good...quiet...cooling?????

vee_ess

07-27-2002, 01:46 PM

By far, the best way to increase air flow, yet reduce noise is to increase the size of the fan. This is because at a given volume of air being moved, the smaller the area it is in, the more pressure which then results in vibration as it pressure drops again, which we then hear as noise. So, when you increase the size of the fan, it will tend to move some more air, yet cause a lower pressure immediately by the blades.

chaplndave

07-27-2002, 03:21 PM

Yea...that's what I have heard. Do you know if using a 60mm - 80mm fan adapter is a good way to go...to increase the size of your fan, giving you more air flow, and yet reducing the fan noise??? If so, which type of fan adapter would you recommend?

vee_ess

07-27-2002, 11:48 PM

TheRogue

07-28-2002, 02:53 AM

looks pretty good, if i see them i may get some myself as my box is kinda warm

Uranium-235

07-28-2002, 02:59 AM

TheRogue

07-28-2002, 03:13 AM

mines over 50 :(

Uranium-235

07-28-2002, 03:17 AM

Do you have an AMD CPU? 50C is the minimum stable tempeture, anything over that and you can expect problems :/

TheRogue

07-28-2002, 03:23 AM

i just posted in hardware board

btw, while i posted i had options to post sticky and announcement, for a sec i though i had been given mod status :(, i think you need to check the permissions in board control for the hardware board as normal users have some extra options they shouldn't :)

chaplndave

07-28-2002, 09:14 PM

Well, fan adapters give you one or the other. If you are running a low performance fan, the noise won't increase, but it will push out more air; if you are running a high performance fan, the noise will decrease, but it will put out as much air. This is because you are running a given amount of air through the smaller hole size, except it is eased into the increased pressure (vs. larger hole). I would just suggest getting out the Dremel and increasing the hole. Heck, just put a window in while your at it.

vee...I seem to be getting mixed signals...or I am just plain slow. At first it apprears that you are talking about a fan adapter on the heatsink for your processor...and later you seem to be talking about a blow hole. I am concerned with the heatsink on the processor...fan adapter...putting a bigger fan on with lower decibel, but higher or equal CFM

vee_ess

07-29-2002, 12:54 AM

I was reffering to a system fan. With a CPU fan, a fan adapter would be your best bet, as it will probably do a little bit of both. If you do decide to put a fan adapter, I would try to put the biggest one you can.

My system also runs cool.
http://www.techwarelabs.com/community/files/348_1027921262.jpg It used to run cooler, at around 85F or 30C, but then it got warmer when I moved the computer to a lesser circulated area. But I don't care, I don't even have a system fan on it.

RogueProtoKol, you might want to make sure you have no dust in your system, and check the circulation around the system. No matter how many fans there are in your system, they only move air, they don't cool it, so if you don't have cool air replacing the warm air, your going to toast your CPU. Don't forget, every 10 degrees Celcius higher your CPU runs, it drops the life of it in half.