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+--- Thread: Noctua fan ds923+ (/showthread.php?tid=11072)
Noctua fan ds923+ - Enquiries - 08-12-2024
This article links toa Noctua at Amazon that is a 4pin fan, but images show 3 pins? Which is correct? Which is the best fan for the DS923+? And Noctua makes several in the correct size. What are the differences? Anything better than Noctua?
Thanks!
~Bob
RE: Noctua fan ds923+ - ed - 08-16-2024
Here is what I find online (there is 3pin connection):
f your DS923+ has a 3-pin fan connector on the board, you can still use a 4-pin PWM fan, but with some limitations:
How to Use a 4-Pin Fan on a 3-Pin Connector:
Compatibility: A 4-pin PWM fan can be connected to a 3-pin connector. The fan will work, but it will run in voltage-controlled mode (like a 3-pin fan), meaning you won't have PWM control over the fan speed.
Connection: When you plug the 4-pin fan into a 3-pin header:
The first three pins of the 4-pin fan will match up with the 3-pin connector on the board.
The fourth pin (which controls PWM) will simply remain unused.
Operation: The fan will receive power and operate based on the voltage supplied by the NAS. However, you won’t have the fine-tuned speed control that PWM provides. The fan speed will be controlled by varying the voltage, similar to how a 3-pin fan works.