How would a PMW signal split between 2 different fans work?

[new boy]

Or another way to express the question, what does the PMW tell a fan to do? sit at a certain RPM? sit at a certain % of max?

EDIT - just to be clear, 2 fans of different models

 

[new boy]

It works just great.
PWM fans use 12volt power on a constant lead with the 4th pin on PWM fan header sends a PWM signal to the fan's built in PWM pcb where it pulses the 12v power going to the fan to control the fan speed.

The signal from one PWM fan header can usually control 8 to 10 fans no problems, but there are a few fans (like some Corsair) that do not play well with others. Some of them will not work if only 2 or 3 of them are on a splitter.

So does it "ask" them to stay at a certain RPM rather than a % of their max speed?

So a 1,000RPM "brand X" fan, and a 2,000RPM "brand Y" fan set at 50% (PMW signal going to brand X) in theory causes brand x to run at 500 RPM and brand Y to run at 1,000 RPM or both at 500RPM?

EDIT - I know stuff happens and things dont alway go to plan, but is that the basics?

 

[new boy]

a percentage

OK, thanks for the confirmation.

 

[new boy]

Thanks for that graph, I see exactly how it would work now.