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Hello
My friend has a GPU with a broken fan, i want to replace it with another fan i've scrapped off of an old computer. They are similar in size and type but the plug is different. My question is would it be safe to put connector A unto fan B, and if so, which wires should be matched up?
Thanks.
Hi Jeppe,
Without seeing the specs for both fans it's not 100% certain which is which but we can probably take some educated guesses. The fans have 4 pins, these are 0V, +12V, Tachometer and PWM, usually in that order on a PC motherboard. Black will most likely be 0V on both fans. Looking at the position and colours Yellow on the old fan will map to red on the new fan as I believe these will be the +12V. The green from the original fan and yellow for the new will be the Tachometer. Finally this will make both the blues the PWM control. So:
Old -> New
Black -> Black
Yellow -> Red
Green -> Yellow
Blue -> Blue
I did find a reference on the internet with a picture backing this up here: http://www.electronic-products-design.com/geek-area/connectors/pc/fans
The picture from that page:
None of what I have said is 100% certain so you need to do your own research too and make sure you are satisfied that these mappings are correct yourself.
Best Regards,
Rachael
