SpeedFan turns off my cpu fan

[sysid]

I installed SpeedFan to set a custom curve for my case fans and everything works fine, however when i use the same settings for my cpu fan it just turns off.
The settings i used for my case fans are:
"Advanced" tab->Pwm 1(which controls all them since they're PST) mode: "Manual" and then set a custom curve in the "Fan Control" tab.
For my CPU fan: Advanced -> Pwm 2(i confirmed this is my cpu fan since other settings work) mode: "Manual", then set a custom curve like the other one.

I can see on the "Readings" tab that it's actually detecting the fan control since the speed % changes with my temps, but it still says 0 RPM and my fan turns off. The only settings that work with it are "Speed Cruise" and "Smart IV" but it seems neither of them are that good.

[emosun]

i've actually never seen anyone control fan speed with speedfan before it's usually reserved for just glancing at temp probes. Use the bios to control the cpu fan speed or let the board do it by itself as any rpm was better than 0 rpm

[svmlegacy]

7 minutes ago, sysid said:

I installed SpeedFan to set a custom curve for my case fans and everything works fine, however when i use the same settings for my cpu fan it just turns off.
The settings i used for my case fans are:
"Advanced" tab->Pwm 1(which controls all them since they're PST) mode: "Manual" and then set a custom curve in the "Fan Control" tab.
For my CPU fan: Advanced -> Pwm 2(i confirmed this is my cpu fan since other settings work) mode: "Manual", then set a custom curve like the other one.

I can see on the "Readings" tab that it's actually detecting the fan control since the speed % changes with my temps, but it still says 0 RPM and my fan turns off. The only settings that work with it are "Speed Cruise" and "Smart IV" but it seems neither of them are that good.

There's a lower limit for fans to run at, and they aren't all the same. If you raise the lowest level of the CPU fan, will it stay on?

[Bombastinator]

1 hour ago, emosun said:

i've actually never seen anyone control fan speed with speedfan before it's usually reserved for just glancing at temp probes. Use the bios to control the cpu fan speed or let the board do it by itself as any rpm was better than 0 rpm

It can do it.  It was designed before fan speed could be easily ramp controlled though so it’s tools and systems are old.  There was a time it was invaluable. Iirc the old intel board for my Qswries chip wouldn’t do fan ramps in bios so I used speedfan.

[emosun]

2 minutes ago, Bombastinator said:

It can do it.  It was designed before fan speed could be easily ramp controlled though so it’s tools and systems are old.

well thats how old computers are sometimes

[sysid]

1 hour ago, svmlegacy said:

There's a lower limit for fans to run at, and they aren't all the same. If you raise the lowest level of the CPU fan, will it stay on?

That did the trick, thanks!