![Zero RPM Mode Black 120 mm Silent Fan with FDB Bearings Fractal Design Ion SFX 650G 80 Plus Gold Certified 650W Full Modular SFX-L Power Supply with UltraFlex DC Wires Video Glasses Zero RPM Mode Black 120 mm Silent Fan with FDB Bearings Fractal Design Ion SFX 650G 80 Plus Gold Certified 650W Full Modular SFX-L Power Supply with UltraFlex DC Wires Video Glasses](https://www.fractal-design.com/wp-content/uploads/2019/10/ION-SFX_650G_8.jpg)
Zero RPM Mode Black 120 mm Silent Fan with FDB Bearings Fractal Design Ion SFX 650G 80 Plus Gold Certified 650W Full Modular SFX-L Power Supply with UltraFlex DC Wires Video Glasses
![How do I know if the zero RPM fan mode is on? I hear no noticeable noise difference. And if it's any use - I'm using the NZXT C850. : NZXT How do I know if the zero RPM fan mode is on? I hear no noticeable noise difference. And if it's any use - I'm using the NZXT C850. : NZXT](https://i.redd.it/vz67mcykdyv51.jpg)
How do I know if the zero RPM fan mode is on? I hear no noticeable noise difference. And if it's any use - I'm using the NZXT C850. : NZXT
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Amazon.com: Fractal Design Ion+ 660w - 80 Plus Platinum Certified 860w Full Modular ATX Power Supply with UltraFlex DC Wires – ATX -140 mm Silent Fan with FDB Bearings – Zero RPM Mode - Black: Electronics
![Antec Signature 1300W Platinum PSU, Fluid Dynamic Fan, Fully Modular, 80+ Platinum, Zero RPM Mode - Tech Image Antec Signature 1300W Platinum PSU, Fluid Dynamic Fan, Fully Modular, 80+ Platinum, Zero RPM Mode - Tech Image](https://techimage.co.uk/wp-content/uploads/2020/11/ANTEC-0-761345-11708-1.jpg)
Antec Signature 1300W Platinum PSU, Fluid Dynamic Fan, Fully Modular, 80+ Platinum, Zero RPM Mode - Tech Image
![Antec Signature 1300W Platinum PSU, Fluid Dynamic Fan, Fully Modular, 80+ Platinum, Zero RPM Mode | Online Hardware Antec Signature 1300W Platinum PSU, Fluid Dynamic Fan, Fully Modular, 80+ Platinum, Zero RPM Mode | Online Hardware](https://www.onlinehardware.net/wp-content/uploads/2021/01/0-761345-11708-1-2-416x416.jpg)