Power Supply Unit

Which of these features did the original IBM computer's PSU only have?

• Soft Reset

• On/Off Switch

• Standby Mode

• Power Saver

What type of rail did older PSUs deliver most power on?

• 2-volt

• 4-volt

• 5-volt

• 10-volt

What are the four components of a PSU?

• SATA Cord, VGA Cord, CPU, MB Cord

• Transformer, Rectifier, Filter, Regulator

• Transformer, Control Unit, Power Connector, Regulator

• C-Filter, RC-Filter, Series Regulator, Shunt Regulator

Why does ripple need to be taken care of in a PSU?

• It can destroy or damage the load.

• There is too much of the DC wave.

• Only half of the AC wave was converted.

• The conversion from AC to DC was not thorough enough.

What is the function of a shunt regulator?

• Reduces ripple voltages left by the filter.

• Controls the unregulated input that goes to output as regulated output.

• Removes surges or drops that can damage plugged devices.

• Shunts current away from the load to regulate output.

What are the three types of rectifiers?

• Half-wave, Full-wave, Bridge

• Short-wave, Full-wave, Bridge

• Part-wave, Long-wave, Full-wave

• Short-wave, Medium-wave, Long-wave

Which is true about the cords in the PSU?

• VGA cords power SSDs, hard drives, and optical drives

• SATA cords power graphics cards and sound cards

• CPU cords power the motherboard processor and socket

• All of the above

Why is an uninterruptible power supply essential for a computer system?

• Keeps the computer running

• Volatile information is held in computers

• All components can be constantly powered

• Less ripple is produced

How much power does a bronze rated PSU waste at a 100% load?

• 18%

• 10%

• 14%

• 20%

Which is a good brand of PSU?

• AMD

• Noctua

• Ultra

• None of the above