2. Lesson 8 System Upgrades Core Hardware Fundamentals

3. Objectives Describe the procedures for upgrading system components. Explain when it will be necessary to upgrade the system BIOS. Identify the expected benefits from selected desktop system component upgrades. Identify the expected benefits from selected portable system component updates.

4. Basic Input/Output System (BIOS) Provides system initialization program Loads and helps run the operating systems Manages the system configuration setup utility Help manage computer hardware through BIOS run-time services

5. CMOS Backup Battery

6. BIOS Upgrade Methods Replacing the BIOS chip  For older socket-mounted BIOS Installing BIOS patch  Software compensation or supplement Reprogramming BIOS EPROM  For socket-mounted EPROM Flash BIOS update  Hard-soldered EEPROM BIOS

7. Pentium Sockets SocketPinsVoltsCPU Socket 11695 v 486 SX 486 DX Socket 22385 v 486 SX 486 DX 486 DX2 Socket 3237 3 v 5 v 486 SX 486 DX 486 DX2 486 DX4 Socket 42735 v 60/66 MHz Pentium Socket 53203 v 75/90/100 MHz Pentium Socket 62353 v486 DX4 Socket 7321 2.5 v 3.3 v 75/90/100 MHz Pentium Socket 83872.5 vPentium Pro

8. Pentium Slots SlotPinsSupported Processors Slot 1242Pentium II/III Celeron Slot 2330Pentium II/III Xeon Slot A242AMD Athlon (K7)

9. Memory Modules SIMM module DIMM module

10. Installed SIM Modules

11. Installed DIMM Module

12. SCSI Hard Disk

13. Portable Upgrades BIOS upgrade Battery upgrade Hard drive upgrade Memory upgrade PCMCIA adapters

14. Laptop Battery

15. Laptop Hard Disk

16. Laptop Memory

17. Installed PCMCIA Adapter