© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.Page1of2Video – Computer Disassembly (16 min)In this tutorial demonstration I'll disassemble a computer. I'll use the recommended safety precautions and therecommended tools. Some of the tools that you'll need are, first and foremost, a Phillips head screwdriver, ahex driver. I have some cable ties here, scissors. I have a can of compressed gas that I could use to blow outany dust or debris from inside the computer. I have a small bag of computer screws. I have a computer toolkitwith a variety of tools inside of it, including a torques driver, a hex driver, a part extractor, tweezers, and anumber of other items. I have an anti-static bag to hold components and I have a toolkit inside the toolkit.Let's take a look inside. I have some other items that I'll be using. I have an anti-static wrist strap which you'llneed to protect against static electricity. I have some thermal compound that I can use to go between thecooling unit and the CPU if I'm installing or replacing the CPU.In this lab, I'll be leaving the CPU and the cooling unit on the motherboard and will be leaving themotherboard in the case. I also have a variety of other components in here. I have SATA data cables. I havea wireless card. I have a ribbon data cable and a variety of other pieces. So, I'll be disassembling this DellOptiPlex 755. So, let's get started. So, the first thing that you're going to want to do is to make sure that thecomputer is powered off and that you've pulled out the power cable. So, I'll pull out the power cable here. NowI know for a fact that the computer has no power.Now, many of cases will have screws on the back that you will use to remove the panel from the case. Withthis model computer, instead of screws it's a pull tab. So, you pull the tab and the panel pops open. So, thatmakes it nice and easy. I don't even need to use a screwdriver. Now, not all cases are so easy. I have acomputer case here. Now, this case you can use either a Phillips head screwdriver or it's just a thumbscrew.So, if I use the thumbscrew, I can pull off the side panel like this to get inside the computer. I'll put that back.And we'll work with our Dell OptiPlex 755.Now that I have the computer open, I'll want to put on my anti-static wrist strap to protect the computer fromstatic electricity. I'm also standing on a grounded anti-static mat. So, I'll put the strap on and I'll clamp the endof the anti-static wrist strap to some bare metal, unpainted bare metal, on the computer.