SMPS (Switch Mode Power Supply)

SMPS (Switch Mode Power Supply)

• AT (Advanced Technology) 6 pins+6 pins
  
• ATX (AT Extended Technolog) 20 Pins
• A Switched-mode power supply (Switching-mode power supply, SMPS, or simply switcher) is an electronic power supply that incorporates a switching regulator in order to be highly efficient in the conversion of electrical power.
• ATX SMPS Test is very easy. Just use a scrap motherboard and connect the power supply onto it and place a wire across the two pins shown in the picture below in order to turn the ATX power supply "On". If possible place two more harddisk to act as load just incase the single motherboard load not enouth to switch it on. The symptom could be the fan rotate for a while and then totally stop!