WorksheetsModule 8 Power Supplies 3
Total questions: 17
Worksheet time: 9mins
John is sent to a customer's job site to diagnose a computer that is turning itself off intermittently. When John walks into the room he smells smoke coming from the computer. What should John do?
Power down the system and replace the CPU
Power down the system and replace the power supply
Install an additional case fan for proper ventilation
Remove the side panel for proper ventilation
The ATX12V P1 connector supplies which of the following voltages to the motherboard?
3.3 V, 5 V
3.3 V, 12 V
5 V, 12 V
3.3 V, 5 V, 12 V
One of the below voltages is an output from an ATX PSU? Which one?
2 V
6V
10 V
12 V
Sheldon is building a high-end gaming PC. In designing his system, which three of the following features of the Power Supply should he install?
High number of connectors
24-pin main connector
450 watts of power
Dual 12 V rails
Mini molex connector
Almost all desktop computers come with a Power Supply that has a fan blowing air out of the system unit. Why then would someone need to add another fan to the front of the system unit?
To blow hot air out of the front of the system
To keep the air already inside the case cooler
To blow more cool air over other components
You have no choice, front fans are required for all ATX12V equipment.
80 mm, 92 mm, & 120 mm are the sizes for what PC component?
Power supplies
Case fans
Heat sinks
Chipsets
Lou is checking/troubleshooting a "switched-mode" power supply with his multimeter. He should find what 3 voltages if everything is in good working order?
15 V
-5.0 V
3.3 V
5.0 V
12 V
You go to a job site and determine that you need to test a Power Supply on a computer. Which tool should you use to accomplish this task?
Device Manager
Multimeter
Anti-static strap
CMOS Health monitor
You are checking out some older laptops for your company that are no longer in use. You want to make sure the Power adapters all work. What tool should you use?
Induction toner
Multimeter
Power supply tester
Paper clip
During a routine "checkup" you discover your Power Supply's +12 VDC output has gone down to +11.5 VDC. What is the solution to the problem?
Replace the power supply with a lower wattage unit.
Replace the power supply with a higher wattage unit.
Check the capacitors
Do nothing, as the slight drop is acceptable.
You walk into Brad's office and notice a strong burning odor coming from inside his computer case. Which part should you suspect in his computer?
PSU
Processor
CMOS battery
Hard drive
Tom replaces the Power Supply in a PC and now it won't boot. What two things should he check next?
RAM
CMOS setup settings
Motherboard
HDD
Graphics Card
How many pins does a PCIe power connector have?
4
6
8
20
24
What two things do case fans provide for your PC System?
They pull air into the computer to cool your devices.
They directly cool the CPU.
They exhaust hot air form inside your computer
They circulate the air and prevent dust from entering the case.
The use wind technology to power devices in your PC.
Jill calls the IT Dept. and says when her computer boots, it just shuts back down. What should the technician assigned to her case use to troubleshoot the problem?
Toner probe
Power supply tester
Loopback plugs
Event logs
Gary's computer randomly reboots at odd times of the day. What two things should be performed first when troubleshooting this issue.
Check the PSU integrity
Check the CMOS battery
Check the video card integrity
Check the memory integrity
Check the optical drive integrity
All Power Supplies are rated by their _____________ output.
Wattage
Amperage
Joule
Farad
