Checkif the power supply (PSU) has a button to cut the power to the machine. Check if this button is in the position denoted with ON or I. Check if EVERY power cable is plugged in securely, reseat if necessary. Check if the power button is installed correctly (consult your motherboard manual) Troubleshootingfor Desktop/ All-In-One devices. If you find any problems (e.g. cannot power on) with your desktop/all-in-one device, please check that the power cord, display connection cable and mouse/keyboard are all correctly connected. If the problems occurred within the hardware of your device ( liquid spills, crash damage, module burned VisiHowQnA. This section is not written yet. Want to join in? Click EDIT to write this answer. PC won't start up. Only the fans are working? PC won't start at all, when I turn the power button on, only the fan works on CPU and graphic endlessly, there is not a single sound from the computer as beep, I tried changing RAM to different slots, unplug and plug in cables and so on, not sure what is Onevery power-on cycle, the PC will go through 3 important steps. This guide only covers a scenario with "No Power". For No POST or No Boot, refer to guides 103 and 104 respectively. Power - PC is receiving power from the power supply. Usually some LEDs will light up and fans will begin to spin. POST - (Power On Self-Test). The PC's Vay Tiền Nhanh Chỉ Cần Cmnd.

computer not turning on power supply ok