Power Supplies

Question 1

What is the pin counts for PCIe power?

Answer 1

6 pin and 8 pin

Question 2

What is the pin counts for the CPU power connector with one half of the connector being compatible with P4 power connector?

Answer 2

4 pin and 8 pin

Question 3

What is the pin counts for the main power connectors?

Answer 3

20 pin and 24 pin

Question 4

When should you buy a PSU without Active PFC?

Answer 4

Never

Question 5

Which extinguisher type should be used for fires that involve ordinary solid combustibles, such as paper and wood?

Answer 5

Class A

Question 6

Which extinguisher type should be used for fires that involve ordinary flammable liquids and gases?

Answer 6

Class B

Question 7

Which extinguisher type should be used for fires that involve energized electrical equipment?

Answer 7

Class C

Question 8

What is the proper voltage for a U.S. electrical outlet?

A. 120 V
B. 60 V
C. 0 V
D. -120 V

Answer 8

A. 120 V

Question 9

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

A. 3.3 V, 5 V
B. 3.3 V, 12 V
C. 5 V, 12 V
D. 3.3 V, 5 V, 12 V

Answer 9

D. 3.3 V, 5 V, 12 V

Question 10

What sort of power connector did a floppy disk drive typically use?

A. Molex
B. Mini
C. Sub-mini
D. Micro

Answer 10

B. Mini

Question 11

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

A. P2 connector for plugging in auxiliary components
B. P3 connector for plugging in case fans
C. P4 connector for plugging into modern motherboards
D. Aux connector for plugging into a secondary power supply

Answer 11

C. P4 connector for plugging into modern motherboards

Question 12

What should you keep in mind when testing DC connectors?

A. DC has polarity. The read lead should always touch the hot wire; the black lead should touch a ground wire
B. DC has polarity. The red lead should always touch the ground wire; the black lead should always touch the hot wire
C. DC has no polarity, so you can touch the red lead to either hot or ground
D. DC has no polarity, so you can touch the black lead to either hot or neutral but not ground

Answer 12

A. DC has polarity. The read lead should always touch the hot wire; the black lead should touch a ground wire

Question 13

What voltages should the two hot wires on a Molex connector read?

A. Red = 3.3 V; Yellow = 5 V
B. Red = 5 V; Yellow = 12 V
C. Red = 12 V; Yellow = 5 V
D. Red = 5 V; Yellow = 3.3 V

Answer 13

B. Red = 5 V; Yellow = 12 V

Question 14

Why is it a good idea to ensure that the slot covers on your computer case are all covered?

A. To maintain good airflow inside your case
B. To help keep dust and smoke out of your case
C. Both A and B are correct answers
D. Trick Question! Leaving a slot uncovered doesn’t hurt anything

Answer 14

C. Both A and B are correct answers

Question 15

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

A. Two primary voltage rails, 12 volts and 5 volts, and an auxiliary 3.3 volt connector
B. Three primary voltage rails, one each for 12 volt, 5 volt, and 3.3 volt connectors
C. One primary DC voltage rail for 12 volt, 5 volt, and 3.3 volt connectors
D. One voltage rail with a 12 volt connector for the motherboard, a second voltage rail with a 12 volt connector for the CPU, and a third voltage rail for the 5 volt and 3.3 volt connectors

Answer 15

B. Three primary voltage rails, one each for 12 volt, 5 volt, and 3.3 volt connectors

Question 16

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

A. Motherboard power connector
B. CMOS setup
C. Sleep Mode
D. Soft power

Answer 16

D. Soft power

Question 17

How many pins does a SATA power connector have?

A. 6
B. 9
C. 12
D. 15

Answer 17

D. 15