Chapter 8 Review: Power Supplies Flashcards
What ATX12V feature was introduced as part of the EPS12V standard?
Voltage rails
The older ATX power connector used 20 pins, a newer one uses:
24
What will likely happen if the wattage capabilities of a PSU are exceeded by trying to run too many devices?
The system will not boot or turn on at all
A PSU is a ___ which refers to a spare part typically carried to replace failed components in the field
FRU (Field replaceable unit)
What fire extinguisher is used for computer fires?
Class C
Which of the following is NOT a PSU form factor?
a. ATX12V
b. LPX12V
c. TFX12V
d. CFX12V
e. SFX12V
b. LPX12V
What voltage does an ATX12V p4 connector provide for motherboards?
12V
The older Hard Drive power connector is called:
Molex
Resistance is known as?
ohms
Pressure is known as?
voltages
Volume flowing is known as?
Amperes
Work is known as?
Wattage
A computer may overheat if what are left off expansion slots?
Slot covers
This ATX form factor power supply attaches to the motherboard with a ______ and supplies 5 V to the motherboard at all times
P1 power connector
The electric company provides ___ power while computers use ___ power
AC, DC
This type of PSU has a switch on the back that allows you to choose what voltage you want to use
Fixed-input PSU
For your computer to run smoothly, the ____ for your PSU should be greater than the minimum required by all devices in your PC
wattage
How many pins does a SATA power connector have?
15
The ability to split voltage supplies into separate ____ ensures that no device will hog all available power
Rails
This 4 pin connector is used to power floppy drives
Mini connector
This provides basic cooling for the PC
Power supply fan
What is the maximum percentage a multi-meter reading can vary?
10%
