DIRECTIONS: Answer the following questions.
1. Several of common form factors are used for PC power supplies. What does "form factor" refer to?
2. When connecting up AT power supply connectors to the motherboard, what is the single most important thing that must be done to keep from damaging the motherboard or the power supply?
3. What is the "Power_Good" (Power_OK or PWR_OK) signal for?
4. Draw the AT power supply connectors below. Label the pins, colors, and signals used.
5. Draw the ATX power supply connector below. Label the pins, colors, and signals used.
6. Draw the Peripheral (hard drive and floppy drive) power connectors. Label the pins, colors, and signals used.
7. Is it necessary to have a load on a PC power supply for testing? Why?
8. What are the typical wattages of power supplies used in PCs today?
9. What is "thermal shock"? When should PCs be left on or turned off?
10. List two reasons why it is important that slot blanking plates be installed in all unused PC slots.
11. What does a surge suppressor do? What is the average purchase cost?
12. What is an UPS? What are typical purchase costs?