How to get started on PC repairs and upgrades.

For refurbishers' specific material, see Manuals for Computer Refurbishers.

This wiki is part of the Pro Tech Network.

Getting Started on Computer Repair ¶ 

Introduction to Computer Repair ¶ 

Computer Upgrading vs Repairing vs Buying New ¶ 

Popular Computer Upgrades ¶ 

Choosing Computer Components ¶ 

Buying Computer Components ¶ 

Computer Troubleshooting ¶ 

Working on Computers ¶ 

Introduction to Working on Computers ¶ 

Rules for Upgrading Computers ¶ 

Hand Tools for Computer Repair ¶ 

Computer Software Tools ¶ 

General Computer Repair Procedures ¶ 

Computer System Maintenance ¶ 

Introduction to Computer System Maintenance ¶ 

Computer System Cleaning ¶ 

Preventative Computer Maintenance ¶ 

Computer Motherboards ¶ 

Introduction to Computer Motherboards ¶ 

Choosing a Motherboard ¶ 

A Motherboard Tour ¶ 

Identifying a Computer Motherboard ¶ 

Computer Motherboard Replacement ¶ 

Troubleshooting a Computer Motherboard ¶ 

Computer Processors ¶ 

Introduction to Computer Processors ¶ 

Computer Processor Performance ¶ 

Computer Processor Characteristics ¶ 

Computer Processor Types ¶ 

Computer CPU Coolers ¶ 

Computer CPU Upgrades ¶ 

CPU Replacement ¶ 

CPU Troubleshooting ¶ 

Computer Memory ¶ 

Introduction to Computer Memory ¶ 

About Computer Memory ¶ 

Computer Memory Performance ¶ 

Computer Memory Issues ¶ 

Choosing Computer Memory ¶ 

Installing Computer Memory ¶ 

Troubleshooting Computer Memory ¶ 

Internal computer bus interfaces ¶ 

Hard Drives ¶ 

Introduction to Hard Drives ¶ 

Choosing a Hard Drive ¶ 

Installing a Hard Drive ¶ 

Enabling DMA Mode Transfers ¶ 

Hard Drive Troubleshooting ¶ 

Optical Drives ¶ 

Introduction to Optical Drives ¶ 

Optical Drive Types ¶ 

Optical Drive Performance ¶ 

Optical Disc Types ¶ 

Installing an Optical Drive ¶ 

Optical Drive Troubleshooting ¶ 

External Storage Devices ¶ 

Introduction to External Storage Devices ¶ 

Uses For Removable Storage ¶ 

External Hard Drives ¶ 

External Drive Enclosures ¶ 

Removable Hard Drive Enclosures ¶ 

USB Flash Drives ¶ 

Tape Drives ¶ 

Video Adapters ¶ 

Introduction to Video Adapters ¶ 

Video Adapter Interfaces ¶ 

Choosing a Video Adapter ¶ 

TV Tuner Cards ¶ 

Installing a Video Card ¶ 

Configuring Windows Video ¶ 

Video Card Troubleshooting ¶ 

Displays ¶ 

Introduction to Displays ¶ 

CRT Displays ¶ 

LCD Displays ¶ 

Display Troubleshooting ¶ 

Computer Audio ¶ 

Introduction to Computer Audio ¶ 

Computer Audio Adapters ¶ 

Computer Audio Adapter Characteristics ¶ 

Choosing a Computer Audio Adapter ¶ 

Installing a Computer Sound Card ¶ 

Configuring a Computer Sound Card in Windows ¶ 

Speakers and Headphones ¶ 

Choosing Speakers and Headphones ¶ 

Audio Troubleshooting ¶ 

Computer Input Devices ¶ 

Introduction to Computer Input Devices ¶ 

Computer Keyboards ¶ 

Computer Mice and Trackballs ¶ 

Computer Game Controllers ¶ 

Wireless Networking ¶ 

Introduction to Wireless Networking ¶ 

Wireless Networking Standards ¶ 

Wireless Components ¶ 

Computer Cases ¶ 

Introduction to Computer Cases ¶ 

Computer Case Characteristics ¶ 

Computer Case Modification ¶ 

Computer Power Supplies and Protection ¶ 

Introduction to Computer Power Supplies and Protection ¶ 

Computer Power Supplies ¶ 

Choosing a Computer Power Supply ¶ 

Computer Power Protection ¶ 

One Comment

I need a detailed wiring diagram for a Dell XPS 420 PC.

Teddy Rose - Reply

View Statistics:

Past 24 Hours: 13

Past 7 Days: 58

Past 30 Days: 299

All Time: 21,055