Chapter 7 - Power Supply

Question 1

ATX power supply

Answer 1

Predominant power supply used in modern computers today.

Question 2

What technically is power supply

Answer 2

Step-Down Transformers. That convert A/C wall outlet power to D/C power for the computer

Question 3

ATX Power Connector

Answer 3

24 pin connector that connects to the motherboard to supply it power.

Question 4

What are the three main types of power that power supply provides?

Answer 4

12 volt, 5 volt, and 3.3 volt.

Question 5

Yellow cord on the power supply is suppling which voltage?

Answer 5

12 volt.

Question 6

Red cord on the power supply is suppling which voltage.?

Answer 6

5 volt.

Question 7

Orange cord on the power supply is suppling which voltage?

Answer 7

3.3 volt

Question 8

ATX12V

Answer 8

4-8 pin power connectors that are extensions to the ATX power, that allow more power to the motherboard.

Question 9

Molex

Answer 9

Oldest power supply connector. Molex are general purpose power connectors providing 12 and 5 voltage..

Question 10

Mini-Connector

Answer 10

Original power supply for the floppy drive. Still used occasionally for some devices.

Question 11

SATA Power Connector

Answer 11

Mainly used to power hard drives. But can be used for optical media.

Question 12

PCIe Connector

Answer 12

Power connectors used to provide power to video cards.

Question 13

Modular Power Supply

Answer 13

Power supply with multiple ports which allows you to be able to only plug in the power cords you know you need. Helps with cable management.

Question 14

Standard Connectors for motherboards are what?

Answer 14

20-24 ATX and 4-8 P4.

Question 15

Molex and SATA Connectors are what?

Answer 15

Power connectors for peripherals and Hard Drives.

Question 16

Power supply orientation.

Answer 16

Always good to orient your power supply so fans draw air from system.

Question 17

How to equal Watts

Answer 17

Volts x Amps = Watts

Question 18

80 plus rating system

Answer 18

Is a power supply rating. If your power supply has a 80 plus rating you power supply is sure to use 80% proficiency.

Question 19

Modular vs Solder

Answer 19

Solder will have extra cables doesn’t really help with cable management. But modular is said to reduce efficiency. Purest say to use solder

Question 20

Rule thumb for wattage with power supply

Answer 20

Get a PSU with a little more wattage then you system needs.

Question 21

Heat Sink

Answer 21

Number device to remove heat from a device. A heat sink draws heat from electrical components

Question 22

What does a system do when it overheats

Answer 22

It reboots.

Question 23

PWM connectors

Answer 23

Connectors to plug fans into the motherboard.

Question 24

Number one device to die inside your system is what?

Answer 24

The power supply. Takes the abuse from the electricity from your electrical provider.

Question 25

V~ on volt meter is for what?

Answer 25

AC power

Question 26

V with straight line and 3 dots on a volt meter is for what?

Answer 26

DC power

Question 27

Fasting Dying Power supply indicators

Answer 27

Burning smell, smoke, or both.

Question 28

Slow Dying power supply indicators

Answer 28

unexpected shutdowns, bootup with no power plug back in and it powers up.

Question 29

Clear CMOS Jumper

Answer 29

Used to reset system setup