Biostar 865G MICRO 775 Spécifications télécharger pdf (Page 60)

CHAPTER 3

158

All About Motherboards

19. What can you do if the power-on password and the supervisor password to a system have

been forgotten?

20. Where is the boot priority order for devices kept?

21. What is the difference between a hard boot and a soft boot?

22. How is CMOS RAM powered when the system is unplugged?

23. Describe how you can access the BIOS setup program.

24. If a USB port on the motherboard is failing, what is one task you can do that might ﬁx the

problem?

25. What might the purpose be for a SATA-style power connector on a motherboard?

THINKING CRITICALLY

1. Why does a motherboard sometimes support more than one system bus speed?

2. Why don’t all buses on a motherboard operate at the same speed?

3. When you turn off the power to a computer at night, it loses the date, and you must

reenter it each morning. What is the problem and how do you solve it?

4. Why do you think the trend is to store conﬁguration information on a motherboard in

CMOS RAM rather than by using jumpers or switches?

5. When troubleshooting a motherboard, you discover the network port no longer works.

What is the best and least expensive solution to this problem?

a. Replace the motherboard.

b. Disable the network port and install a network card in an expansion slot.

c. Use a wireless network device in a USB port to connect to a wireless network.

d. Return the motherboard to the factory for repair.

6. A computer freezes at odd times. At ﬁrst you suspect the power supply or overheating,

but you have eliminated overheating and replaced the power supply without solving the

problem. What do you do next?

a. Replace the processor.

b. Replace the motherboard.

c. Reinstall Windows.

d. Replace the memory modules.

e. Flash BIOS.

HANDS-ON PROJECTS

PROJECT 3-1: Examining the Motherboard in Detail

1. Look at the back of your computer. Without opening the case, list the ports that you

believe come directly from the motherboard.

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Biostar 865G MICRO 775 Spécifications Page 60