Working with the BIOS Setup Program

Working with the BIOS Setup Program

• 1.
  PC Hardware Servicing Chapter9: 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 InputOutput 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 MetalOxide 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 BIOSdoes 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 • Setboot 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 • Legacyparallel and serial ports • Set addresses or enable/disable
• 13.
  Power Management • Canbe 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 BadBIOS Changes 1. Find reset jumper on motherboard 2. Change its position 3. Power system on for 5 to 10 seconds 4. Power system off 5. 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 Pullchip with chip puller tool