In this chapter, authors Scott Mueller and Mark Edward Soper explain the difference between BIOS and CMOS configuration. Learn such techniques as what type of boot process tests a computer’s memory, what type of device is needed to display BIOS error codes and how to understand those codes, which CMOS setup screen to adjust when using Windows 95, 98, or 2000, and how to restore the original software to a bootable DC-ROM.
This sample chapter was excerpted from Upgrading and Repairing PCs: A+ Certification Study Guide, Second Edition.
While You Read
Explain the difference between BIOS and CMOS.
If you want the computer to test the memory, which type of boot process
(warm or cold) will you want the customer to perform? Why?
If you have computers with a Phoenix BIOS and an AMI BIOS, will they have
the same beep codes? Why or why not?
What type of device is needed to display BIOS error codes? What do you
also need to understand the codes?
Which CMOS setup screen might need to be adjusted when using Windows 95,
98, or 2000?
If you have a bootable CD-ROM containing the
original system setup, what BIOS option do you adjust if you need to restore the
system with its original software? What should be listed first and