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Thread: Fan placement on case and screens!

  1. #11
    Who am I? HiJackZX1's Avatar
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    Thanx RD......... I started doing alot of research and decided to go with how towers use thier fans.... They blow air from the front to rear. So the pre installed fan will continue to blow in, over the HDD, into the MoBo area. Yes for some reason the fans to blow down on the processor, and the other fan installed on the GPU was originally a processor fan also, and it blows down. I plugged the hole and on part of the opening I placed another fan that pulls air out, this should create a circle type air flow. Once I get my stupid IDE to SATA conveter, I can connect my HDD and start my install and testing the air flow.

    When it came to the screens, I opened up the screens, removed the speaker and placed a fan blowing the air out. I figured this was bad, because there is a large circuit board blocking the fan from the screen itself, but when I turned it on I saw that the screen remained cool and that air was being sucked in with alot of force. So far the screen has been running 1 hour and 30 minutes with no change in heat.
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  2. #12
    Sheepdog rdholtz's Avatar
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    So it looks like one or two fans down on the outlet end should do you well. When you add fans there, look for the quiet ones -- here's a link to an example, and here's another. There are plenty of others in different sizes out there.
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    If just enough is really good, then too much ought to be perfect.

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  3. #13
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    Quote Originally Posted by rdholtz View Post
    But I'd be surprised if your CPU and GPU fans are blowing down. My experience is that these blow up, drawing ambient air through the fins and blowing it away from the processors.
    99% of heatsink fans blow down. Trust me on this.

    Adding a single fan of the same size to create airflow through the case should be all you need. You might consider going to a larger fan, rather than more fans. If it were my system, I'd make sure they are ball bearing fans too. Less noise and they will last longer.

  4. #14
    Sheepdog rdholtz's Avatar
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    Quote Originally Posted by Lovecraft View Post
    99% of heatsink fans blow down. Trust me on this.
    I stand corrected on the heat sink fans. Mine blows up, but I checked several others, and all but one blow down. A call to my favorite computer store confirmed what you say. Mine is a standard AMD fan, preinstalled on the heatsink. I also have its twin, and that's installed the same way. Interesting . . .

    Quote Originally Posted by Lovecraft View Post
    You might consider going to a larger fan, rather than more fans. If it were my system, I'd make sure they are ball bearing fans too. Less noise and they will last longer.
    It looks like the case is pretty short, so there may only be room for two small fans, rather than one bigger one. I sure do agree with the ball bearing recommendation.
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    If just enough is really good, then too much ought to be perfect.

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  5. #15
    Who am I? HiJackZX1's Avatar
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    I could be wrong about which way they blow, but i would not be surprised if they blow down. IEI seems to do things diffrently with their MoBos'. Say for example, the USB headers arent like other boards where its 5v, data p, data n, and ground on both sides. Instead the pin headers go the opposite way on USB 2. So I had to take apart the connector and reverse it to work.
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  6. #16
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    8 case fans, plus two on the motherboard?



    glad I'm fanless...

  7. #17
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    Quote Originally Posted by rdholtz View Post
    I stand corrected on the heat sink fans. Mine blows up, but I checked several others, and all but one blow down. A call to my favorite computer store confirmed what you say. Mine is a standard AMD fan, preinstalled on the heatsink. I also have its twin, and that's installed the same way. Interesting . . .
    haha, the plot thickens... I decided to look into some of my computers on the house, and 1 blows away from the heatsink, and 4 blow down on the heatsink. I think blowing down is more common, since heatsinks are designed to pull the heat off the chips, then the air blows across the fins of the heatsink to cool the heatsink. Different then chips directly, since they radiate the heat and the fans will pull that heat away from the chips. Or I could be talking out of my arse again =)

    Either way, you can always flip the fan to have it blow the other way, take measurements, and compare which works better =)

  8. #18
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    Quote Originally Posted by Lovecraft View Post
    99% of heatsink fans blow down. Trust me on this.

    Adding a single fan of the same size to create airflow through the case should be all you need. You might consider going to a larger fan, rather than more fans. If it were my system, I'd make sure they are ball bearing fans too. Less noise and they will last longer.
    Agreed on the ball bearing.. will be quiter and long longer. As for same size, I think the OP will be limited in size due to the case design, so no worries there.

    He could always use a larger exhaust fan, creating negative air pressure/flow... but I think the simple push/pull fan setup - pulling air in over the hard drives and out the other side/back side - is going to be just fine.

  9. #19
    Who am I? HiJackZX1's Avatar
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    Got the fans on.

    Here are a few pix of the fans. I cut holes in the case using a sodering iron, then used silicon to hold it in place and seal it for air leaks. I also modified the sunvisors, but I had to really mod them. They are so ugly now, I am not going to post pictures until I have them wrapped in leather and looking nice.





    The only issue I see is that when the screens are on for a long time and placed in the sunvisors, the bottom left corner (which has a large ventillation hole) of the screen, still seems to get warm, but not warm enough to be hazardous to the equipment. The rest of the screen seems to stay very cool. Once I get my media pc back up (my screen test bench), I will experiment with covering certain holes to see if I can improve air flow to that section.
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  10. #20
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    Quote Originally Posted by HiJackZX1 View Post
    Here are a few pix of the fans. I cut holes in the case using a sodering iron <snip>
    Bet that smelled great! =) Like a freshly cut down pine forest, eh?

    Buy yourself a dremel. Trust me, with the amount of tinkering you have been doing you will love it and find many, many uses for it. One of the best tools that I ever bought.

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