Different Slots in a PC and What Are They Used for?

apg slotThe AGP Pro slot uses 5 volts and a regular AGP slot draws only 1.5 or 3.3 volts, misalnment will cause a regular AGP card to draw 5 volts and fry the video card. It's imperative that aAGP 2X chipsets come with 3.3V slots, AGP 8x chipsets come with 1.5V slots, and some AGP 4x chipsets come with AGP Universal slots. 3.3V slots use the front key notch,