Main: set a sane fan target default

main_fw/src/main.c

@@ -49,7 +49,7 @@ uint16_t fan_installed[3] __xMR = {1, 1, 0};
 uint16_t fan_cmdrpm[3] __xMR = {0, 0, 0};
 uint16_t fan_ppr[3] __xMR = {1, 1, 1}; // a 1 here means 2 pulses per revolution
 
-uint16_t setfrpms[3] __xMR = {1000, 100, 100};
+uint16_t setfrpms[3] __xMR = {600, 600, 0};
 
 pid_cntrl_t PID1 __xMR;
 pid_cntrl_t PID2 __xMR;