{| class="wikitable"! Jumper No. !! Usage|-| Pin 1 and Pin 2<br/>(Auto ON) || Short - Auto power on when power applied<br/>Open - Power on when power button pressed|-| Pin 3 and Pin 4<br/>(Fan FS) || Short - PWM fan is controled by GPIO, need to install script<br/>Open - PWM fan run at full speed|} [[File:x735-v2-Function-description.jpg|700px]] X735 V2.5 PCB Size:65x68mm