Hi Yongkui > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 0800: 00 00 00 00 38 f7 77 bf a0 00 00 00 00 00 00 00 > 0810: 02 00 77 df ca 00 00 00 00 00 00 00 00 00 02 00 > 0820: 00 00 00 81 81 81 81 80 01 01 80 80 80 80 00 80 > 0830: 80 80 84 05 05 04 04 05 04 84 84 04 04 84 80 05 > 0840: 05 05 04 05 04 05 04 81 80 00 00 f7 77 1d 08 57 > 0850: 02 00 00 00 ff ff 10 7f f0 26 ff 00 00 00 00 00 Is this dump done before you loaded the driver? Fan2 is set to fullspeed (bit 0 is 1) Fan1 is set to some speed 001000 -> 8/64 of duty cycle > So, the register 0x58 is f0, which is 11110000. But I am not sure > whether the Bit 0 is from left or right. I assume it is from right. So > Bit 0 to Bit 3 = 0, and Bit 4 to Bit 7 = 1. Bits are from right. > Accoring to Table 57 on page 118 of the manual, this means the Fout is > 15.625 kHz? Yes seems correct to me.Please write there 80/120Hz so: isaset -y -f 0x858 0xff Is there a change in pwmconfig curve? Regards Rudolf
