Splicing wires of cooling fans to use elsewhere (SOLVED and UPDATED)

Discussion in 'Computer Cases, Power Supplies and Cooling' started by gymjunkie, Dec 11, 2015.

  1. gymjunkie

    gymjunkie Member

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    30
    My Xbox One tends to get really hot and while it plays fine it worries me so I cut into the wires of an old comp cooling fan and hooked it to an outlet plug but it wasn't enough. I bought two 120mm fans from Masscool, they arrived today but they have red, black, and yellow wires so I'm trying to figure out how to go about this.
     
  2. beers

    beers Moderator Staff Member

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    6,938
    Sounds like you're voiding the warranty for no reason.
     
  3. gymjunkie

    gymjunkie Member

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    ....is that all your saying?
     
  4. beers

    beers Moderator Staff Member

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    6,938
    When you obviously don't have a plan or have some sensationalized expectation of how things 'should be', sure.

    Red : 12v
    Black : Ground
    Yellow : RPM

    Do you even have any hard monitoring data for what temperatures you're trying to achieve? If your cooling solution is insufficient and the Xbox becomes a brick, you'll also have zero support. Have you even done any analysis to what you're implementing?

    The XB1 gets a bit 'roasty' out of the top vent, but as an exhaust vent it shouldn't be that surprising. Also, the APU is rated for pretty large temperatures, and the Xbox can already manage its own thermal solution, so there's really no reason to monkey around when you don't know what you're doing.
     
  5. gymjunkie

    gymjunkie Member

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    30
    You obviously read something wrong. I'm not even touching the xbox itself, im simply placing fans on top of the vent to pull hot air out.
     
  6. beers

    beers Moderator Staff Member

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    6,938
  7. gymjunkie

    gymjunkie Member

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    Minimal or not it's still something I would like to do, can't hurt. So the RPM wire I assume is just for adjusting the speed since red will already supply the power anyway so does that mean I wont need the yellow wire at all? The plug I am using is also a 12v, same as the fans, but if I am using two fans would it overload the plug?
     
  8. beers

    beers Moderator Staff Member

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    6,938
    Depends on the amperage of the plug, although fans don't pull a large amount of current unless they're deltas or something. You should be able to see the rating on the fan such as "12v, 0.4A"

    You shouldn't need the yellow, it just reports RPM. Most traditional solutions adjusted the voltage or PWM (such as in newer 4 pin fans) off of readings from the yellow wire, but it doesn't directly control anything itself.
     
  9. gymjunkie

    gymjunkie Member

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    Pulled this off Newegg

    Rated Voltage: 12 V
    Rated Current: 0.13 A
    Rated Power: 1.56 W
     
  10. Okedokey

    Okedokey Well-Known Member

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    9,426
    Red is 12V constant, yellow usually pulse modulation (12V) allows automatic speed control and black is negative. If sound is not an issue and you don't mind the fans running full speed, connect red to positive and black to negative. Otherwise use yellow as positive.

    Connect in paraleel and it will work fine. Headers are rated at 1A usually.
     
  11. gymjunkie

    gymjunkie Member

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    30
    I hope an update for something like this is ok.

    Ever since I placed the two fans on top of my xbox, the temps have dropped dramatically. Unfortunately I don't have any hard numbers, but the air coming out used to be very hot and now it barely feels warm. The brand I used was MassCool (bought from Newegg), they were pretty cheap and so silent I honestly forget they even exist.

    I know it doesn't look the greatest but damn if it doesn't work!

    [​IMG]
     
  12. beers

    beers Moderator Staff Member

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    Gross.
     
  13. TheWildCat

    TheWildCat New Member

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    15
    You're right, it does not look good, but who cares about the looks if it works?
     
  14. Agent Smith

    Agent Smith Well-Known Member

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    2,384
    Go to Amazon and buy a thermoelectric cooler. https://www.amazon.com/s?ie=UTF8&field-keywords=Peltier &index=blended&link_code=qs&sourceid=Mozilla-search&tag=mozilla-20

    I was going to use one on top of my CPU, but after I made a post about it at another forum members quickly told me that I would also have to control the condensation. That part never occurred to me otherwise talk about totally cooling down your CPU! LOL But for your application these might be pretty useful. It's like an air conditioner. Just note which side of the thermoelectric cooler is the cool side. Use a black felt pen and make a dot on that side.

    Here's a guy who did this with a CPU. At the end you can see the condensation issue that arises.


     
    Last edited: May 25, 2017 at 11:03 AM
  15. beers

    beers Moderator Staff Member

    Messages:
    6,938
    TEC eats a lot of power for not much gain. You also have to have something pretty hefty on the hot side cooling wise for it to make a difference. If you can't sufficiently cool the hot side it doesn't benefit the cool side.

    Adding a TEC to the XB1 would probably blow the power brick.
     

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