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CompTIA A+ > Cooling and Power > Flashcards

Cooling and Power Flashcards

● OBJ 3.4: Given a scenario, install and configure motherboards, central processing units (CPUs), and add-on cards ● OBJ 3.5: Given a scenario, install or replace the appropriate power supply

1
Q

Heat from different components inside the computer

A

Thermal load

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2
Q

Type of cooling that doesn’t rely on moving parts or power

A

Passive cooling

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3
Q

Finned metal device that radiates heat away from the processor

A

Heat sink

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4
Q

Compound that ensures heat transfer by eliminating air gaps

A

Thermal Paste

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5
Q

Uses a fan to cool down the heat from the device

A

Active cooling

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6
Q

type of cooling used in high performance systems

A

Liquid Cooling

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7
Q

Cooling of a single component

A

Closed loop system

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8
Q

Liquid cooling-based system of different components

A

Open loop system

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9
Q

Cycled between positives and negatives repeatedly

A

Alternating current (AC)

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10
Q

The main purpose of power supply is to deliver ______ to all components inside the PC when receiving an AC power supply

A

DC

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11
Q

Allows to unhook the connectors and detach from the unit
▪ frees up space inside of the computer

A

Modular PSU / Modular Power Supply Unit

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12
Q

Provides power to the motherboard

A

Main Board / Motherboard Adapter

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13
Q

20-pin connector

A

ATX Standard

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14
Q

24-pin connector

A

ATX 12V

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14
Q

Two connectors are coupled together before plugging into
a 24-pin connector

A

20+4 Pin

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15
Q

Has a four, six, or eight-pin connector

A

Processor Power/ CPU Power

16
Q

Used for IDE and PATA hard disks, CDs, and DVD drives

A

Molex Connector

17
Q

One connector that can support multiple devices

A

Y Connector

18
Q

US-based power supply

A

120V AC (Low Line Power)

19
Q

Europe and Asia power supply

A

230V AC (High Line Power)

20
Q

Detects the outlet and converts it into the voltage of DC

A

Voltage Sensing / Dual Voltage Power Supplies

21
Q

Wire that provides current at a particular voltage

A

Rail

22
Q

Cable or wire that provides 12 VDC
o most used voltage in the PC

A

12 VDC Rail

23
Q

Power supply’s output capacity or capability
▪ The devices inside a computer require power from a power supply

A

Wattage Rating

24
Q

Amperage to Wattage

A

▪ A x V
▪ I x V

25
Q

The power supply has increments of

A

50 or 100 W

26
Q

A 500-watt power supply that is 70% efficient will draw

A

714 W (500/70)

27
Q

A 500-watt power supply that is 80% efficient will draw

A

625 W (500/80)

CompTIA A+ (25 decks)

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