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Thread: Cooling solution

  1. #1
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    Cooling solution

    Okay, I am not sure how to describe this, but think of a vacuum cleaner. So my PC is in the trunk i want to be able to suck air out of the cabin into the trunk and push it into the computer with a hose or something. What kind of hardware would I need for this?

  2. #2
    Self proclaimed spoon feeder TruckinMP3's Avatar
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    Quote Originally Posted by mazda8 View Post
    Okay, I am not sure how to describe this, but think of a vacuum cleaner. So my PC is in the trunk i want to be able to suck air out of the cabin into the trunk and push it into the computer with a hose or something. What kind of hardware would I need for this?

    A tube and a fan?
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  3. #3
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    well yes, but a fan won't do. Or a simple fan. I want a rather small tube, and a fan won't exactly fit that... I need it to be much more efficient, otherwise there is no point

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    Fusion Brain Creator 2k1Toaster's Avatar
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    small aircompressor/pump perhaps? Maybe a fishtank thing?
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    fishtank thing... you may be on to something.

    I also had another idea. take one of those very tiny cpu fans, like the one at the front of car pc cases, and get regular sized tubing, but find something that I can attach to widenit temporarily to fit around the ends of the fan.

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    One thing to keep in mind....a small tube will not pull in much air.....and when you add a fan to a small tube...then well you will get a whistling sound coming out of it. I would personally use a 3in case fan and find a way to add a 3in tube to it. This will allow a good airflow and you wont have any noise .

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    Maximum Bitrate pcpete's Avatar
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    I'm having problems with heat as well. I've got a carnetix p2140 and it gracefully shuts down windows and itself when the temp hits 60C. We had some hot weather in TO over the last week and I had this issue last summer as well.

    If I ran the AC for about 10min air would seep through to the trunk and the pc would keep running....but I like to roll down my windows and turn the AC off, but this would cause temps to rise and carnetix would eventually shut everything down.

  8. #8
    Low Bitrate Jitters333's Avatar
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    Quote Originally Posted by mazda8 View Post
    fishtank thing... you may be on to something.

    I also had another idea. take one of those very tiny cpu fans, like the one at the front of car pc cases, and get regular sized tubing, but find something that I can attach to widenit temporarily to fit around the ends of the fan.
    A fan and several small tubes fabbed on the fan would totally work, don't know why you shot that down

    get a fiberglass kit, and a bowl (about the size of the fan) line the bowl with the fabric and make sure there is enough fab to wrap around the sides of the fan. resin ONLY the fab in the bowl once dry take out place the fan on the fab bowl THEN wrap the non resined fab around the the sides of the fan and resin it

    step 2
    drill holes the size of the tubing in the fabbed bowl and use hot glue (or putty whatever) to get a good seal, will look something like this



    Edit: or you could always get a watercooled system 300$ but WELL worth it will drop the temp very nicely
    Oh And It Looks Cooler than anything else that you could do to your pc

  9. #9
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    A thing to remember:
    computers use ambient air for cooling.

    This means that whatever the air temperature is in the computers location, THAT is the air you are using to cool the computer.
    Water cooling does not change that, nor does running air ducts- these just move the source of cooling air to a remote location, ie.: instead of air from inside the dash or in the trunk, air from the passenger compartment.
    Even if you use something like peltier coolers (TECs) this remains true.

    The only way to really CHANGE this is to use an external device to supply the cooling air, like an air conditioner ducted to the computer.

    All is not lost though- the temperature of the cooling air does NOT need to be 50 degrees fahrenheit to keep a carpc running! What DOES matter is keeping a large enough AMOUNT of air over all of you components, including the power supply.

    If you are going to duct (non-refrigerated) air to the carpc, you will probably get the best results by pulling air away for the unit, not sending it towards it, and you will need to make sure that ALL of the exhaust air is going over the computer. And use a large duct, not a small one.

    A 2" exhaust duct will do more to keep things cool than three 1/2" ducts with refrigerated air unless your AC really kicks some butt.

    The point here is that it is really the constant exchange of air that is needed, not a one-sided supply of cool air.
    If you force a constant exchange of WARM air through the carpc it will work better than sending cold air IN but doing nothing to get it back out. In that situation, the cold air will go in, be warmed up by the computer and then sort of get stuck in there getting warmer and warmer.

    I hope this has made some sort of sense...

  10. #10
    Who am I? HiJackZX1's Avatar
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    What type of car is this for? I have a DODGE DURANGO and my PC is prone to overheating if not cooled correctly. After 3 different designs I came up with a case to move massive amounts of air through the PC. Also another thing I did is connect the fans to direct 12V power, not one fan is controlled by the PC. I notice on direct 12V the fans spin faster. My case is thin and basically has to fans blowing air in, and 2 fans blowing air out. My PC is in the cabin, but I think if you run small ducts from the top to the PC it would work. Here is a crude drawing of my idea for your car.




    You don't have to have ducts towards the back of the PC, only ducts coming in. Only thing is the trunk will be cooled also when the PC pushes the air out. Basically the duct is coming from the the flat area behind the rear passenger seats and before the rear windshield. Usually they put the rear speakers in that area. It should be thin to cut. For maximum air cooling I recommend 2 fans at the top, regular pc fans, the 2 more at the base of the PC drawing air in. The at the other end of the case, 2 more fans blowing air out. You should not hear much noise either. Here is a pic of my case. I used the cars seat frame to build it. I center console goes on top of it.



    PS: don't ever use direct A/C air, it will start to rust and corrode your pc. Your cabin is cooled by A/C so the way I have explained will work perfect.
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