Hey guys, I have Corsair RM550x that is turning on/off its fan in 65-70 min cycles when PC is on idle. When PSU fan is off I meassure 31W from wall and 21W when fan is off. Other PSUs are not like that and they are around 25W. Funny thing is that fan shouldnt even spin below 220W iirc and I found it hillarius that its using less power when fan is on. PC is working fine, but is this normal?
Edit: specs - MSI Z270-A PRO, intel G3930, 8gb ram, 2 sata SSD and no GPU
Yeah sorry , its MSI Z270-A PRO, intel G3930, 8gb ram, 2 sata SSD and no GPU. Ill add that to main post. Thanks for input mate, its bit more clear already, but still weird tbh. All that could explain fan behaviour, but why is it using less power when fan starts.
Its true, my case fans are off since Ive set them to start spinning when CPU reach 45C and that is almost never. I guess Its not good to have 0 air flow. I should change case fan curves and see