Chapter 7 Cont. #2

Question 1

Load balancing

Answer 1

when both power supplies are in use by the host computer and the electrical load is between them, this is known as load balancing

Question 2

Modular power supplies

Answer 2

Are getting more popular these days

Hurt efficiency because the modular connectors add resistance to the lines

Way less wires though all over the place

Question 3

What is the proper voltage for a US electrical outlet?

Answer 3

120V

Question 4

What voltages does an ATX12V P1 connector provide for the motherboard?

Answer 4

3.3V, 5V, 12V

Question 5

What sort of power connector do better video cards require?

Answer 5

PCIe

Question 6

Joe ordered a new power supply but was surprised when it arrived because it had an extra 4 wire connector. What is the connector?

Answer 6

P4 connector for plugging into modern motherboards

Question 7

What should you keep in mind when testing DC connectors?

Answer 7

DC has polarity. The red lead should always touch the Hotwire; the black leads should touch a ground wire

Question 8

What voltages should the two traditionally colored hot wires on a molex connector read?

Answer 8

Red = 5V

Yellow = 12V

Question 9

Why is it a good idea to ensure that all the slots in your computer case are covered with slots covers?

Answer 9

To maintain good airflow inside your case and to help keep dust and smoke out of your case

Question 10

A PC power supply provides DC power in what standard configuration?

Answer 10

3 primary voltage rails, one each for 12V, 5V, & 3.3V connectors

Question 11

What features of ATX systems prevents a user from turning off a system before the operating system has been shut down?

Answer 11

Soft power

Question 12

How many pin does a SATA power connector have?

Answer 12

15

Question 13

3 main types of power that powers supplies provide

Answer 13

12V = Yellow
5V = Red
3.3V = Orange