Cooling

•          Wattage rating

•          PSU fan not turning

•          Case fans

       Missing slot covers (front and back

PSU Ratings

•          Watts (w)

•          250 – 400W

•          More devices requires more watts

•          More powerful PSUs generate more heat

Sub Mini Connector

•          3 pins

•          Supplies 5V and Ground

•          CPU, Northbridge and Case fans

Mini Connector

•          Aka Berg connector

•          4 pins

•          Floppy Disk drive

•          Supplies 12V, 5V and ground

Molex Connector

•          4 pins/wires

•          Supplies 12V, 5V and ground to devices

•          Hard drive, CD/DVD, ZIP

•          Chamfers

Multimeter

Allows you to test:

•          AC Voltage

•          DC Voltage

•          Continuity

•          Resistance

Power Terms - Summary

•          Pressure = Voltage (V)

•          Volume Flowing = Amperes (A)

•          Work = Wattage (W)

•          Resistance = Ohms (Ω)

•          Fuses and Ground Wires

•          An electrical outlet must have a ground wire to be suitable for PC use