I'm hesitant to attempt something like messing with the video BIOS, especially without more detailed guidance, but cannot find any other options. The last fan on the single mobo fan header has its own custom PWM fan curve that ramps up faster and higher because it sits below the GPU. Others have reported success changing fan speed controls on a similar card using low-level controls I used the BIOS and set them all to PWM, set the two exhaust and two intake 140mm fans to the same fan curve, and then set the rear exhaust 120mm fans on their own separate PWM curve.Could you please check on your BIOS to see if you have. Someone was successful with my card (not sure about manufacturer). It should be in the BIOS under Advanced > Fan: Minimum Fan Duty Cycle Disable Passive Cooling Mode.This seems to not be an uncommon problem for this software, though.
Neither the "Fans" tab (shown below) nor the "Fan Control" tab show any fans. As shown below, changing the speed % in MSI Afterburner results in a change to the reported %, but the RPM is the same. Check the box for Enable user-defined software automatic fan control. This is corroborated in GPU-Z, which shows fan speed as both RPM and a percentage. The fan speed percentage goes up and down according to what I tell it, but there's no actual change in the fan speed. In MSI Afterburner, neither manual adjustment of the fan speed, nor usage of a speed profile have any effect. The same site says v3.0.0.3 is needed for older GPUs, but has no link.
The manufacturer's Xtreme Tuner Plus software alleges to allow fan speed control, but the latest version of the software doesn't support my old GPU and I can't find a way to get to the old version.
Note that the NVIDIA Control Panel doesn't look to have any fan speed controls in my case. I have an NVIDIA GeForce GTX 560, manufactured by Galaxy, running on a Windows 7 64-bit desktop (specifically, an HP Z420). I need to modify fan speed settings for a few reasons (mostly loudness and cooling performance), yet all the "typical" approaches that I can find online don't appear to be working.
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