i need help
Reviewing The Basics
1. Don't stack boards on top of each other: You could accidentally dislodge a chip this way. Move it to a safe place in an anti-static bag where it won't get bumped or dropped.
2. Remove loose jewelry that might get caught in cables and components as you work.
3. When assembling a computer you install them in this order: power supply, drives, and then motherboards.
4. If the fine traces or lines on the bottom of the board were to touch the case, a short would result when the system is still running. To keep from touching the case, screw holes are elevated, or you'll see spacers, also called standoffs, which are round plastic or metal pegs that separate the board from the case.
5. Draw a diagram of how the wires are connected, they are never labeled well on a motherboard. Make a careful diagram and then disconnect the wires.
6. The cooler and the heat sink are the two major components of a processor cooler assembly.
7. CPU fan header on a current motherboard has 4 pins.
8. With a 3 pin fan connector you have lost PWM or pulse width modulation. ( reduces noise in a system )
9. To determine the wattage capacity of a power supply: you add up the wattage requirements of all components required and add 30 percent.
10. A video card is the one component most likely to draw the most power.
Thinking Critically
1. B. You forgot to plug up the monitor's external power cord.
If you don't have power to the monitor then nothing will appear on the screen.
2. How much power is consumed by a load drawing 5 A with 120 V across it? 600 watts
3. A reasonable wattage capacity would be 700 watts
4. When overclocking a system, what two problems are most likely to occur?
An unstable system that causes intermittent errors and Overheating.
1. Don't stack boards on top of each other: You could accidentally dislodge a chip this way. Move it to a safe place in an anti-static bag where it won't get bumped or dropped.
2. Remove loose jewelry that might get caught in cables and components as you work.
3. When assembling a computer you install them in this order: power supply, drives, and then motherboards.
4. If the fine traces or lines on the bottom of the board were to touch the case, a short would result when the system is still running. To keep from touching the case, screw holes are elevated, or you'll see spacers, also called standoffs, which are round plastic or metal pegs that separate the board from the case.
5. Draw a diagram of how the wires are connected, they are never labeled well on a motherboard. Make a careful diagram and then disconnect the wires.
6. The cooler and the heat sink are the two major components of a processor cooler assembly.
7. CPU fan header on a current motherboard has 4 pins.
8. With a 3 pin fan connector you have lost PWM or pulse width modulation. ( reduces noise in a system )
9. To determine the wattage capacity of a power supply: you add up the wattage requirements of all components required and add 30 percent.
10. A video card is the one component most likely to draw the most power.
Thinking Critically
1. B. You forgot to plug up the monitor's external power cord.
If you don't have power to the monitor then nothing will appear on the screen.
2. How much power is consumed by a load drawing 5 A with 120 V across it? 600 watts
3. A reasonable wattage capacity would be 700 watts
4. When overclocking a system, what two problems are most likely to occur?
An unstable system that causes intermittent errors and Overheating.