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WorksheetsMotherboards and Power Supplies
Total questions: 59
Worksheet time: 28mins
USB 2.0 and which of the following ports share the same connector?
Micro USB 2.0
Mini USB 2.0
Micro USB 3.0
USB 3.0
Which of the following connections are typically on the external PC chassis? (Select TWO).
AGP
SAS
IEEE1394
eSATA
IDE
The technician would like to upgrade a workstation by adding a USB 3.0 card, and upgrading the video card, sound card, and NIC. The technician is concerned about power
consumption by the expansion cards. Which of the following upgrades would MOST likely require also upgrading the power supply?
Video card
USB 3.0 card
Sound card
Network card
Which of the following uses a single connector to deliver both video and audio?
DVI
Serial
VGA
HDMI
Which of the following expansion slots uses a serial connection?
PCI
PCI-X
PCIe
AGP
Which of the following external ports would a technician use to connect a keyboard? (Select TWO).
eSATA
IEEE 1394
USB
PS/2
VGA
Which of the following expansion cards would MOST likely have the requirements of utilizing a direct auxiliary 6-pin power plug to operate properly?
PCI Express RAID card
PCI Express video card
PCI Express FireWire card
PCI Express LAN card
Which of the following adapters converts an analog signal to a digital signal?
S-Video to RCA
HDMI to VGA
VGA to DVI-D
DVI-D to HDMI
On an ATX motherboard, the 4-pin auxiliary power connector provides which of the following?
Additional power to onboard devices
Additional power to PCIx peripheral cards
Additional power to the South Bridge
Additional power to the CPU voltage regulator
Which of the following should the technician do FIRST?
What slot is this?
CPU
RAM
PCI
CMOS
This slot is used to put into specialized chips that hold information while the computer if running.
RAM
CPU
PCI
SATA
These ports replaced the IDE connector.
SATA
EIDE
RAM
PCI
This little thing shaped like a dime powers the computer's system time and firmware settings while the computer is unplugged. It can last roughly between 5 - 10 years.
CMOS Battery
CMOS
RAM
AGP
What is this?
VGA
DVI
AUDIO
PS2
What is this?
HDMI
DVI
VGA
ESATA
What is this?
PS2
PS3
PS4
ESATA
What is this?
HDMI
DVI-D
DISPLAY PORT
MDF
What is this?
RJ-45
CAT 6
SPDIF
VGA
What is this?
VGA
SPDIF
COMPONENT
COMPOSITE
What is this?
USB
VGA
DVD
DVI
USB VERSION?
1
2
3
C
USB version?
1
2
3
C
USB version?
1
2
3
C
USB version?
1
2
3
C
What does this do?
Transmits video
Charges devices when computer is off or on
Transmits audio wirelessly
Bluetooth
What is this?
HDMI
DISPLAY PORT
DVD
DVI-D
A customer is building a high-end gaming PC and is seeking an appropriate power supply unit. Which of the following feature-sets of a power supply should be installed? (Select
THREE).
Mini-ITX form factor
High number of connectors
24-pin main connector
Dual 12v rails
350-450 watts of power
The technician would like to upgrade a workstation by adding a USB 3.0 card, and upgrading the video card, sound card, and NIC. The technician is concerned about power
consumption by the expansion cards. Which of the following upgrades would MOST likely require also upgrading the power supply?
Video card
USB 3.0 card
Sound card
Network card
Joe, a customer, requests that the desktop system he is buying is able to be used at his vacation home in another country, as well as his regular home. The technician is aware
that the country mentioned has different power requirements. Which of the following should the technician ensure the desktop contains?
Dual voltage options
UPS
Inverter
Micro-ATX connector
On an ATX motherboard, the 4-pin auxiliary power connector provides which of the following?
Additional power to onboard devices
Additional power to PCIx peripheral cards
Additional power to the South Bridge
Additional power to the CPU voltage regulator
How can you tell that you are looking at the main power connector to the motherboard?
It will be in the form of a 20-pin or 24-pin Advanced Technology eXtended (ATX) connector.
It will be in the form of a 4-pin or 8-pin connector.
It will be in the form of a 6-pin or 8-pin connector.
It will be in the form of a 15-pin Serial Advanced Technology Attachment (SATA) connector.
What component regulates the level of voltage that the central processing unit (CPU) and Random Access Memory (RAM) receive?
The motherboard
The power supply
The CPU
The RAM
What can you do to be certain that the wattage of a power supply will meet the needs of a computer?
Add up the power requirements of the components that the computer will use.
Check that the wattage is equal to or greater than the power requirements of the motherboard.
Ensure that the power supply is 200 watts, which is sufficient for most high-end machines.
Check to make sure that there are enough cables from the power supply to connect to each device.
What is a molex connector used for?
A connector used to supply power to Parallel Advanced Technology Attachment (PATA) drives, optical drives, and Small Computer System Interface (SCSI) drives.
A square-shaped connector used to supply power to floppy disk drives and some tape drives.
A connector used to supply power to Serial Advanced Technology Attachment (SATA) drives.
An 8-pin connector used to provide power to Peripheral Component Interconnect Express (PCIe) slots on the motherboard.
What are the two possible configurations of a Peripheral Component Interconnect Express (PCIe) motherboard connector? (check 2 answers)
6 pin
8 pin
4 pin
24 pin
What is the major difference between single-rail and dual-rail PSUs?
The internal circuits of a dual-rail PSU are separated based on different power output.
Single-rail PSUs only require one mounting bracket and dual-rail PSUs require two brackets.
Dual-rail PSUs provide 24v of power to the computer and single-rail PSUs provide 12v.
Dual-rail PSUs have more cords than single-rail units.
Which power supply connector contains 24 pins?
Main power connector
12V connector
SATA connector
PCIe connector
Many power supplies come with the ability to switch voltages based on the power input supplied. What are the two voltages that a power supply can switch between?
110v and 220v
5v and 12v
60v and 240v
90v and 180v
What does the extra pin of a 4-pin Molex KK connector do that a 3-pin Molex KK connector does not?
Control the speed of the fan
Turn the fan on and off
Connect directly to the power supply
Power the light-emitting diode (LED) for the fan
How much voltage does a 4-pin connector provide to the motherboard?
12 volts
24 volts
48 volts
192 volts
In what situation would you need an 8-pin motherboard power connector instead of a 4-pin motherboard power connector?
When providing power to multiple central processing units (CPUs) in the system
When providing more than 12 volts of power to the motherboard
When requiring 192 watts of power to be delivered to the motherboard
When providing power to multiple PCIe slots on the motherboard
Which of the following descriptions of a 24-pin Advanced Technology eXtended (ATX) connector is accurate?
It has a maximum wattage of 144 watts and a maximum voltage of 12 volts.
It has a maximum wattage of 72 watts and a maximum voltage of 12 volts.
It has a maximum wattage of 72 watts and a maximum voltage of 5 volts.
It has a maximum wattage of 144 watts and a maximum voltage of 5 volts.
What would a 3–pin Molex KK connector be used to power?
A motherboard fan
Peripheral Component Interconnect Express (PCIe) expansion slots
The motherboard central processing unit (CPU)
Serial and parallel ports
What is the maximum wattage of an 8-pin connector that provides 12 volts of power to the central processing unit (CPU)?
336 watts
192 watts
72 watts
36 watts
Which of the following devices would be connected to the power supply with a Molex connector?
An optical drive
A Serial Advanced Technology Attachment (SATA) drive
A floppy drive
A solid state drive (SSD)
A Serial Advanced Technology Attachment (SATA) connector provides power at three different voltages. Which of the following is NOT among these three possibilities?
+24 volts
+3.3 volts
+5 volts
+12 volts
