BIOS: Typical Motherboard BIOS – POST – BIOS and BOOT Sequences – American Megatrends – Phoenix Technologies – BIOS Trouble Shooting – General Symptoms – PCI Symptoms. Busses: Industry Standard Architecture (ISA) – 8 bit ISA – 16 bit ISA – Peripheral Component Interconnect (PCI) – PCI Bus configuration and signals – General Bus Troubleshooting

CMOS: The Role of CMOS – Configuring the CMOS Setup – Entering CMOS Setup – CMOS Maintenance and Troubleshooting – Typical CMOS Related Symptoms – CMOS Password Troubleshooting – CMOS Battery Maintenance.CPU Identification and Troubleshooting: CPU Essentials – The busses – Processor Modes – Modern CPU Concepts – CISC Vs RISC CPU – Processor speed – Processor power management – System clocks – Architectural performance features – Trouble shooting CPU Problems – Tips for Controlling Heat – General Symptoms.

Hard Drives: Basic Drive concepts – Platters and media – Airflow and Head flight – Tracks, Cylinders and sectors- Drive Power modes – Drive Installation/ replacement Guidelines – Select Jumper configuration – Attach cables and mount the drive – Configure the CMOS Setup – Finish the Drive Preparation – Reassemble the Computer – Drive Testing and Troubleshooting – General Troubleshooting Guidelines. Keyboards: Keyboard Basics – Key Codes – Keyboard Interfaces - Keyboard Maintenance and Troubleshooting – Correcting Problem Keyboards – Replacing the spacebar – Disabling a Keyboard.

Monitor Troubleshooting: Monitor specifications and Characteristics – CRT – Pixels and Resolution – Triads and Dot pitch - Color Circuits – Video Drive circuits – Troubleshooting a CRT – Inside the CRT – CRT Testers – Troubleshooting a Color Monitor – Wrapping it up – Post repair testing and alignment. Motherboard Troubleshooting: Active, Passive and Modular – Understanding active motherboards – sockets and slots – the power of Chipsets – Expansion slots – Trouble shooting a Motherboard – Repair Vs Replace – Start with the Basics.

Sound Boards: Understanding sound boards – The recording process – The playback process – The concept of Sampling – The Role of MIDI – Inside a sound Board – Using Microphones – Microphone Types – Troubleshooting a sound Board – DOS drivers and driver order. USB Troubleshooting: Understanding USB – USB Devices – USB Architecture notes – Implementing USB – Enabling USB – USB Host Controller Types – USB Troubleshooting – General USB troubleshooting.