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PC Maintenance: Preparing for A+ Certification

Learn how to access and configure the BIOS setup program, make necessary changes for specific situations, update and replace the BIOS chip. Includes instructions for floppy and hard drive configuration, boot order, plug and play settings, power management, and recovering from bad BIOS changes.

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PC Maintenance: Preparing for A+ Certification

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  1. PC Maintenance: Preparing for A+ Certification Chapter 9: Working with the BIOS Setup Program

  2. Chapter 9 Objectives • Identify the purpose of the system BIOS • Access BIOS Setup utilities • Know what settings to change in BIOS Setup for specific situations • Install a BIOS update • Replace a BIOS chip

  3. BIOS • Basic Input Output System • Motherboard has a BIOS • Other devices may also have a BIOS (ex. printer, network router, video card) • Typically stored on a ROM or Flash RAM chip

  4. CMOS • Complementary Metal Oxide Semiconductor • Type of RAM used for storing exceptions to BIOS settings • Powered by motherboard battery full-time

  5. Accessing BIOS Setup • Watch for a message at startup telling which key to press

  6. BIOS Setup Utility

  7. Exiting BIOS Setup • Refer to message onscreen for instructions • F10 is typical for saving changes • Esc is typical for discarding changes

  8. Floppy Drive Configuration BIOS does not typically detect floppy drives

  9. Hard Drive Configuration • Usually Plug-and-Play, but manual setup is possible; refer to label on disk drive

  10. Boot Configuration • Set boot order (CD, Hard, Floppy, etc.)

  11. Plug and Play • When Plug and Play OS is assumed, BIOS relinquishes control of many hardware resources • Reset Configuration resets BIOS assignments of resources from its own Plug and Play • Assign IRQ for USB support enables USB devices to work before OS loads

  12. Integrated Peripherals • Legacy parallel and serial ports • Set addresses or enable/disable

  13. Power Management • Can be configured in BIOS or in OS • OS is preferable if possible • Power management turned on in both places can result in conflicts

  14. Recover from Bad BIOS Changes • Find reset jumper on motherboard • Change its position • Power system on for 5 to 10 seconds • Power system off • Reset jumper

  15. Install BIOS Updates • Download update from manufacturer’s Web site • Check instructions on Web site • Many types of updaters • Command line utilities • Windows-based utilities • Boot disks

  16. Replace BIOS Chip Pull chip with chip puller tool

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