On my 3-pin chassis fans the adjustable range is 40 - 100% for power and 0 - 100☌ for temperature.Ĭ) PWM is better because instead of altering the voltage it alters how often the voltage is applied so you could have a fan that won't run at all below a certain voltage but with PWM control the full voltage is applied in pulses so you can get a lower RPM on a fan that you couldn't with just voltage control. Asus rog for example uses tpu 1 or 2, 2 is for water cooling. specially for the use of AI software use for tuning of fans and pumps. EDIT: I think that OPT_Temp sensors need to be connected for the fans to change speed, otherwise the fan will just spin at a constant speed.ī) the FAN Xpert graph in windows shows 0 -100% on the power Y-axis and 0 - 100☌ on the temperature x-axis and on mine with a PWM CPU Fan the adjustment range is 20 - 100% for power and 0 - 100☌ for temperature. Asus STRIX Z270E Motherboard (with the following headers: CPUFAN, CPUOPT, 2xChassis FAN, AIOPUMP, HAMPFAN) Corsair H115i Liquid Cooling (one connector coming out of the pump). The other three fan headers (OPT_FAN1, OPT_FAN2 and OPT_FAN3) are controllable in the BIOS only and they can be in PWM mode or voltage mode. Hi, I had a problem with my cpu cooler & stupidly disconnected then tried to reconnect to CPU fan header while the computer was running and - 157751. 3-pin fans are also controllable on the CPU_FAN header, I'm not sure about CPU_OPT though. The CHA_FAN1, CHA_FAN2 and CHA_FAN3 header work with 3 pin plugs and fan control is available via the BIOS or FAN Xpert in Windows.
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