7v fan mod psu calculator

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images 7v fan mod psu calculator

Insert your Molex-pin remover and pop out the pins one at a time. Reminds me of the those Firesox's in the vault of fail. When the switch is on, you get the full 12V, and when off, the fan runs in series with the resistor. To make the job easier, you can use a Molex-pin removal tool, but it is not necessary. Junit Newbie. Just when I'm thingking about getting a new PSU

  • Easy 7V Mod for Fans TechPowerUp
  • 12v to 7v Molex Fan Switch 6 Steps
  • Fan speed reducer OC3D Forums
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  • Reducing Fan Speeds

  • Guide to the 7v Fan Mod - Many people, while desiring high It is not a good idea to try this mod when starting a PSU with the wire trick. Fan Voltage Calculator, Fan speed adjustments. The fans in your computer are there for a reason - I will not be held responsible for any to the health of your power supply - though the reasoning has been somewhat spurious. Here's how we would calculate the resistor value required to run a fan at 7V from a 12V.

    Easy 7V Mod for Fans TechPowerUp

    Most PCs don't provide any way to control the speed of the fans. Running 7V CAN sometimes be potentially stressful for the PSU for technical to dozens of watts, require careful calculation of what goes out of the 5V lead.
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    In your scenario with the batteries, you would get 6V. On most power supplies, the grounds are all common.

    12v to 7v Molex Fan Switch 6 Steps

    Find all posts by vorticalbox. Use your removal tool or screwdriver and repeat the steps above.

    images 7v fan mod psu calculator
    PART 41 GPDO 2010 CAMARO
    They will be pushed into the pin, and chances are the removal tool might have bent them.

    Could be some more Leadmans there I'm not sure. The resistance value depends on the specifications of your fan, and the voltage you want it to run at; there is a calculator for this online if you search 'fan resistor calculator'.

    Remmy OC3D Elite.

    Fan speed reducer OC3D Forums

    Maybe a link to the psu amp ratings thread or the amp ratings added to 3 list maybe useful. Anybody got a work around for this? Author: tski Date:

    This will allow you to use any 12 Volt fan at 5 Volts or 7 Volts.

    images 7v fan mod psu calculator

    needs to be done on the side of the connector that the power supply goes into. 12v to 7v Molex Fan Switch: When you have high performance fans [high CFM and static *a molex to fan adapter or some time of female molex connector. Fan speed reducer Air Cooling.

    and it just has a resistor in the power wire reducing the voltage from 12v to 7v. though some PSU's dont like this.

    images 7v fan mod psu calculator

    there is a calculator for this online if you search 'fan resistor calculator'.
    Use your removal tool or screwdriver and repeat the steps above. This site uses cookies. Fan speed reducer.

    images 7v fan mod psu calculator

    Step One Here is a picture of what we need. MakaluFeb 10, Page 1 of 2.

    images 7v fan mod psu calculator
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    Find all posts by vorticalbox.

    Power Supply FAQ guru3D Forums

    Share This Page. Afterwords I couldnt even hear my fans. Author: tski Date: Quote: Originally Posted by vorticalbox i did that in my switch changed the 12 out for the 5 on the fan spliter, i did say the PSU might not like that forcing it to 7v but it can be done. The 12v [yellow] and the ground [black] both need to have a wire cut off.

    I'll be putting it on the fan in my power supply to slow it down. to lower the speed of the fan quite a bit then connect it up as 7v, (red wire of fan .

    speed, then build a voltage divider out of 2 resisters and use this calculator to.

    Video: 7v fan mod psu calculator Undervolt Your Fans the Ghetto Way - Easy 7V Molex Mod Guide Tutorial Linus Tech Tips

    Results 1 - 48 of We understand that air flow requirements differ as well as size requirements Nov 11, The right fan speed will keep your components cool without B. power connector from the power supply contains 2 voltage lines and a computer fan Amazon.

    com: Phobya 12V to 7V 3-Pin Fan Adapter Cable. Power Supply FAQ FAQ #1: How much power do I need? The calculator by Snoop-WiggleS at Overclockers Australia gives the most detailed .

    FAQ # How can I obtain 7V from a PSU to power a fan at low speed?.
    Before this selector my fans sounded like vacuum cleaners and were very distracting when i tried to do anything on my computer and ended up marrying a pair of headphones when gaming instead of using speakers.

    Reducing Fan Speeds

    It's just a very low end quality, out dated design and over rated by a good W. You really do not need much for this.

    To make the adaptor you will need either a dead or cheap 4-pin fan, or a 4-pin to 3-pin adaptor that has four wires between the male and female Molex plugs. I'm waiting on both the cooler and a new case. Contest View Contest.

    images 7v fan mod psu calculator
    7v fan mod psu calculator
    Find all posts by Junit Nice, you got it finished.

    You must log in or sign up to reply here. They will be pushed into the pin, and chances are the removal tool might have bent them. Anybody got a work around for this?

    4 thoughts on “7v fan mod psu calculator”

    1. Quote: Originally Posted by Remmy I wouldn't recommend wiring a molex to give 7V because you're forcing back current into the PSU through the 5V line, which is supposed to be an output, and it can be harmful to your PSU.

    2. It's not complete total junk like some of the others on the list. Anyway yeah the only true way to get a measurement is with a meter.