What does it mean when your PSU fan is not spinning?
These high-quality power supplies also come with a very quiet fan that is dead silent, even during full load and can easily be mistaken for the fact that whether it is spinning or not. This semi-passive cooling mode is also called Zero RPM mode, Semi-Fanless mode and 0dB mode, depending on the manufacturer of the PSU.
What should I do if my PSU fan is making a grinding noise?
If the PSU is new and is under warranty, then you can RMA it and get a free replacement. If your PSU fan is making whining or grinding noise then you can lubricate the fan bearings with a light oil e.g. machine oil.
Where do I connect the fans and pump?
Connect one fan to CPU Fan 1 and the other to CPU Fan 2 / OPT. Connect one adapter to CPU Fan 1 and the other adapter to CPU Fan 2. Its recommended that the pump be connected to an alternative fan header on the motherboard such as System Fan 1, Chassis_Fan 1, or for newer motherboards a dedicated pump header.
What does zero rpm mean on a PSU?
This semi-passive cooling mode is also called Zero RPM mode, Semi-Fanless mode and 0dB mode, depending on the manufacturer of the PSU.
When to turn on the cooling fan relay?
The cooling fan relay is an electromagnetic switch that controls the power supply to the engine’s cooling fans. It ensures that the energy-intensive devices only run when needed, usually when the vehicle is immobile. When the engine temperature approaches unsafe levels, the vehicle’s computer or temperature switch turns on the cooling fan relay.
These high-quality power supplies also come with a very quiet fan that is dead silent, even during full load and can easily be mistaken for the fact that whether it is spinning or not. This semi-passive cooling mode is also called Zero RPM mode, Semi-Fanless mode and 0dB mode, depending on the manufacturer of the PSU.
Why are the fans running even when the engine is offline?
Conversely, the cooling fans may keep running even when the engine is offline. This odd behavior indicates a different issue in the relay that controls the fans. An electrical short in the relay can lock the armature in its open position permanently.
If the PSU is new and is under warranty, then you can RMA it and get a free replacement. If your PSU fan is making whining or grinding noise then you can lubricate the fan bearings with a light oil e.g. machine oil.