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The Official Cooler Master HAF X/932/922/912(+) Club - Page 798

post #7971 of 23536
Quote:
Originally Posted by blue-cat View Post
a very primative fan controller would be a variable resistor that varied the voltage to the fan to slow it down etc.
So can you get any old fan and hook it up and it will slow down and speed up when you twist the knobs?

And with the age of the high tech fan controllers do they do it any different? Wouldn't it be the same resistor?
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post #7972 of 23536
in theory yes. that would be the physics side of it.
im not sure how computer fans are configured ie what role the tach plays. i'm pretty sure if you stick a variable resistor on the red wire you can alter the voltage that way and control the fan. that way you could place you "fan controllers" where you liked i.e. round the back or under neath etc.

you could even get one of those multi rocker switches and attach a different resistor to each position and vary the voltage that way.
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post #7973 of 23536
Can anyone confirm that the HAF 932 Blue is in fact 9.0" wide? Problem is my current desk has an allocated PC shelf and the maximum width given is 10".
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post #7974 of 23536
Quote:
Originally Posted by Raul-7 View Post
Can anyone confirm that the HAF 932 Blue is in fact 9.0" wide? Problem is my current desk has an allocated PC shelf and the maximum width given is 10".
With the bulges in the side yes it is 9" almost exact. may be a 1/16" over or under it is hard to measure as it is through the center of the case where it is widest.
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post #7975 of 23536
Quote:
Originally Posted by Covertop View Post
MiH and Caeder, thanks for the help on the fans.

Next topic is fan controllers

I have an aerotouch 2000 right now, but I am changing to the Zalman ZM-MFC3. What my question is; How do fan controllers work? Or correct me if I am wrong, do they change the power to the fan to slow the rpm's down? I have been looking at the PWM fans and they would be awesome and they are somewhat readily available, but there is no fan controller (that I can find) that has more than one PWM port.

So I am assuming, that when you buy fans you want to always buy 3 wire (power, ground, and tach) and then the fan controller will control the RPM for you? Or am I missing something?

After thought: Is the tach wire there just to tell the fan controller what the RPM of the fan is? Also, there are fans with heat sensors on them, can you get those to plug in to the Fan controller, because the sensors that come with fan controllers suck IMO. They are ugly and never stick properly (or could you give me a great idea for how to handle the wiring and application)
To the best of my knowledge, there are lots of fan controllers that use PWM to control the fans. If you cant find any, have a look at Lamptron controllers. I know the FC2 and FC3 models use PWM (Pulse-width modulation) to control fan speed, as otherwise they would have to find someway to get rid of the heat if they just used resistors.

Yes, the tack wire gives feedback about fan rpm.

And lastly, I believe that the fans with heat sensors don't generally output that temp, they use it to control the fan speed within itself (using a thermal resistor to adjust voltage). For that reason these fans should only be used as an exhaust fan, and really shouldn't be controlled by an additional fan controller.

If you are worried about heat, use a program to monitor it.

You can try:
Realtemp
Coretemp
Speedfan
or
HWmonitor

These will tell you fan speeds for any fan plugged into/controlled by your MB and temp of your CPU cores. I don't bother with temps of HDDs etc...
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post #7976 of 23536
Quote:
Originally Posted by Weston View Post
Question for you guys that have painted your HAF. I've got mine all taken apart and ready to paint, was just wondering how many coats you all used. (ie. how many coats of primer, color, clear coat)

Thanks!

Weston
I used two coats of primer, sanding the first with 400 grit and the second with 800 grit. As for the base coat, I just sprayed to cover primer which was like 4-5 coats. Then I cleared it 4 times, flashing it the first and then laying down 3 coats of clear. I'm definitely considering painting it again. What color though, I don't know.

Edited by Tatakai All - 7/22/10 at 6:31pm
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post #7977 of 23536
Thanks MiH. The problem with most fan controllers are they have once single PWM and the rest are 3 pin with no PWM availability (I have heard about shorting out the PWM into the tach lead, but that scares me). The Lamptron FC2 and 3 only have 4 3 pin connections.

Basically the ones that I have seen simply have one single 4 pin lead for CPU coolers and that is all. I have no need for that as my system is watercooled, but like you said the heat output by extra resistors and what not, seem to lead to the nicety of having 4-5 PWM fans.

I was just trying to get as much info as I could. However, I am not worried about heat, I am just worried about getting accurate readings from within the case so I can adjust accordingly. What my goal is, is to turn the fans down to the bare minimum so I can be as quiet as possible.
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post #7978 of 23536
Tatakai, love the kenpachi avatar, funny
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post #7979 of 23536
Quote:
Originally Posted by Covertop View Post
Thanks MiH. The problem with most fan controllers are they have once single PWM and the rest are 3 pin with no PWM availability (I have heard about shorting out the PWM into the tach lead, but that scares me). The Lamptron FC2 and 3 only have 4 3 pin connections.

Basically the ones that I have seen simply have one single 4 pin lead for CPU coolers and that is all. I have no need for that as my system is watercooled, but like you said the heat output by extra resistors and what not, seem to lead to the nicety of having 4-5 PWM fans.

I was just trying to get as much info as I could. However, I am not worried about heat, I am just worried about getting accurate readings from within the case so I can adjust accordingly. What my goal is, is to turn the fans down to the bare minimum so I can be as quiet as possible.
The FC2 has 6 connections and can handle 45W per channel (its the one that I have and that FoB had as well), which means that it is powerful enough to control your pump as well if you wanted (which is what I plan to do if I don't/can't get the following)

If you want accurate info, then alot of the high end systems are going for an Aquaero fan controller . Its what I want if I can get one in Australia, and if you get the powerboost one, it has one channel with enough juice to control a pump. It is totally nomnomnom



You can even buy an accessory to monitor water flow etc... As far as I can tell its the best controller for WC systems.
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post #7980 of 23536
Quote:
Originally Posted by Tatakai All View Post
I used two coats of primer, sanding the first with 400 grit and the second with 800 grit. As for the base coat, I just sprayed to cover primer which was like 4-5 coats. Then I cleared it 4 times, flashing it the first and then laying down 3 coats of clear. I'm definitely considering painting it again. What color though, I don't know.
That looks great. Did you take any pictures of it during the process? I would like to see what It looks like naked without any components in it. It looks great as red but maybe if you decide to change the color then you can find a color that compliments the red LED's in the fans or find different color fans to compliment the case color (I'd choose the second choice). You did a really good job on that. So... how far do you live from Seattle, WA? I think I have a case in need of some new clothes... lol
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