Controlling 4pin fan with PWM 25Khz

On an Uno:

With timer2, could get dual pwm at 31.37kHz using Mode 1. Using Mode 5 only get one pwm at 25kHz.

So, using timer 1 and timer 2, could get 4 pwm, 2 at 25kHz and 2 at 31.37kHz.

or 3 pwm at 25kHz.