CS/IS 101 Lecture Notes - Lecture 8: Computer Fan, Heat Sink, Pci Express
Document Summary
Power supplies convert ac power to dc power. 24 pins for power (4-8 pins for p4) Power supplies provide 12 volts, 5 volts, and 3. 3 volts. Atx12v standards extension to the original atx power that allows us to put. Sata power connection more power into the motherboard. Hard drives, video cards need electricity too. Used to power the inside of systems. It"s not a reversible plug like most connectors. Used to power pcie expansions (like video cards) Supply that allows you to use the cables you need to use (so you don"t have wires hanging around. Mostly separated from the rest of the system. Power supply might need its own cooling system. In most power supplies (and pretty much in all atx power supplies), the heat blows out the back. Orient the power supply so fans draw air from system. Modular power supplies offer less cable clutter than non-modular power supplies. We buy power supplies based on watts.
