Personal Computer and Power Supply
Chpt 2 Review Questions
1. When taking a computer apart, why is it important to not stack boards on top of each other?
The components on each board could be damaged and/or corrupted
2. Why is it important to remove loose jewelry before working inside a computer case?
Jewelry might fall into and/or get caught on any of the components of the machine and corrupt or damage it including potential for static electricity as low as 10 volts.
3. When assembling a system, which do you install first, the drives or the motherboard?
Motherboard
4. What is the purpose of raised screw holes or stadoffs installed between the motherboard and the case?
If the bottom of the motherboard touches the metal frame, it could short out the board.
5. When installing the front panel wires to the motherboard front panel header, how do you know which pins to use for each wire if the pins on the header are no0t labeled?
They all have different amounts of pins or receiving ports/holes.
6. What are the two major components of a processor cooler assembly?
Fans and heat sinks with thermal compounds
7. How many pins does the CPU fan header on a current motherboard have?
4
8. If the power connector from the CPU fan has only three pins, it can still connect to the 4 pin header, but what functionality is lost?
Pulse width modulation effectively making the fan run at the same speed constantly
9. How do you determine the wattage capacity needed by a power supply?
Add up all of the wattage needed by each component and then add 30%
10. Which one component in a high-end gaming computer is likely to draw the most power?
The video card
Thinking Critically:
1. You disassemble and reassemble a computer. When you first turn it on, you see no lights and hear no sounds. Nothing appears on the monitor screen. What is the most likely cause of the problem?
if lights and sounds came from the computer, the power supply would be connected, and you
1. When taking a computer apart, why is it important to not stack boards on top of each other?
The components on each board could be damaged and/or corrupted
2. Why is it important to remove loose jewelry before working inside a computer case?
Jewelry might fall into and/or get caught on any of the components of the machine and corrupt or damage it including potential for static electricity as low as 10 volts.
3. When assembling a system, which do you install first, the drives or the motherboard?
Motherboard
4. What is the purpose of raised screw holes or stadoffs installed between the motherboard and the case?
If the bottom of the motherboard touches the metal frame, it could short out the board.
5. When installing the front panel wires to the motherboard front panel header, how do you know which pins to use for each wire if the pins on the header are no0t labeled?
They all have different amounts of pins or receiving ports/holes.
6. What are the two major components of a processor cooler assembly?
Fans and heat sinks with thermal compounds
7. How many pins does the CPU fan header on a current motherboard have?
4
8. If the power connector from the CPU fan has only three pins, it can still connect to the 4 pin header, but what functionality is lost?
Pulse width modulation effectively making the fan run at the same speed constantly
9. How do you determine the wattage capacity needed by a power supply?
Add up all of the wattage needed by each component and then add 30%
10. Which one component in a high-end gaming computer is likely to draw the most power?
The video card
Thinking Critically:
1. You disassemble and reassemble a computer. When you first turn it on, you see no lights and hear no sounds. Nothing appears on the monitor screen. What is the most likely cause of the problem?
if lights and sounds came from the computer, the power supply would be connected, and you