I recommend Arctic Cooling's PWM fans as well. My Nexus D12SL-12PWMs ran at ~800-2000RPM stock until I grounded the PWM wires and added a resistor to the +12v line of the faster one. Now they both run ~550-590 but that's no match for the Arctic if you're looking to easily achieve low RPM while using...

I'm going to live with the current noise level for the summer. This winter I'll swap the Kingwin PSU's stock fan out for the unused 120mm stock fan that came with my Noctua heatsink. The spare Noctua 140 is too noisy to be used in my PC so I'm thinking about using it in the PC room's window, powered...

To be honest I prefer fans spinning at a constant low speed to temperature adjusted fans; the noise "quality" change with load is more annoying than a constant whoosh. This PWM experience just reinforced that. Did you know that PWM fans are *not* temperature-controlled? The PWM input can be connect...

have you actually determined the sound is from a particular fan? Now that I have 2 CPU HS fans, both running below 600 RPM using grounded PWM wires (with the intake also fed 12v through a 10-ohm resistor), I have determined that only now is the (Kingwin Max. Power) PSU's fan the loudest of the 3 (a...

Edit: Did you know that you could put a piece of small single-strand wire (called "TTL gauge" here in the US, just strip the very ends of it before you insert it) into the unused PWM pin of your fan and force it to run at 0% duty cycle ~500 rpm. This is a workaround for your apparent lack of a PWM c...

What was the control system for your Antec fan? Specifically, was it PWM? The Nexus PWM fan may indeed have a design defect, but more likely, your motherboard is not set to allow the minimum PWM speed (0% duty cycle). I'm not familiar with the Gigabyte GA-Z77-DS3H, but my similar MSI motherboard has...

A PWM Controller

The link has gone dead. I used:
http://www.google.com/search?q=DIY+PWM+controller

Currently the both fans in the system (CPU @800 RPM & PSU @<800 RPM) show no symptoms of any defect and no audible ticking or e-noise. If I detect any defect in any fan in the future, I will replace it with a spare I have on hand. Specifically another Nexus D12SL-12PWM (as I said in post #1) and the...

have you actually determined the sound is from a particular fan? stop all but one fan temporarily with a ziptie, then repeat until offending noisemaker is found. I want to run the CPU fan at the minimum possible speed using the MSI motherboard's PWM fan controller (while still maintaining safe CPU ...

Thank you all for the replies. I now have several more potential solutions to try. If you connect it up as a DC fan instead of PWM (ie. only 3 wires) and use a very low voltage then what is the minimum speed you can get? I plan to try it and report back. i vaguely remember MSI having some minimum du...

The retail box of my Nexus D12SL-12PWM claims "500-2000 RPM" but I can't get it to spin slower than 799 RPM. It is attached to the CPU fan connector on a MSI Z77A-G45 motherboard. I see an old thread where SPCR users write that they were able to run this fan at much lower speeds and I gather that th...