I don't have a problem with PWM but, the fan speed control is probably a BIOS setting. Either use the alternative control method (I've forgotten what it is) or turn off the control and use a low speed/noise for the CPU.
I too fan my hdds. hdds are better kept as slow models, which produce a lot of heat, but still they get hot. I had one hdd I could probably have cooked on!
LOL Its not about you having a personal problem with pwm, its about emi and electrical noise in the chain [emoji19]
Yeah I forget that option too... Are we competing on who has a more progressive Alzheimer's?!!
G