Exam 8: Power Supplies

What is the purpose of the P4 12-V connector?

Higher-end PCIe cards have a dedicated _______________-pin or _______________-pin PCIe power connector.

The _______________ located near the top of the computer case takes air from inside the case and sends it outside.

A PC does not work.What should you check first?

Power supplies are rated for efficiency based on _______________ drawn to supply sufficient power to the PC.

Which power supply never turns off?

You suspect that a wire has a break in it.What can you do to test your theory?

In the past, how much power was supplied by power supplies with 12-V rails?

How do the electrons flow in DC current versus AC current?

Every device in a PC requires a certain amount of _______________ to function, derived from the amount of amps and volts it needs.

What should be the outputs of the hot, neutral, and ground wires, respectively, when tested with a multimeter?

The power supply connects to the power cord via a standard _______________ connector.

The pressure of electrons in a wire is called _______________.

Briefly describe the structure and function of case fans.

_______________ current allows electrons to flow in alternate directions back and forth in a circuit.

Which unit is used to measure current?

Describe the mini-ATX and micro-ATX power-supply form factors.

What is current?

In order to check power supply voltages, the power supply must be _______________.

Modern motherboards use a(n) _______________- or _______________-pin P1 power connector.