Safety First! ESD You need to remember that Electricity will destroy delicate components. This is called Electromagnetic Static Discharge (ESD), static electricity. You can build up enough static electricity to damage a unprotected part by walking across the room. How do you discharge the static electricity? By grounding yourself, you can buy a static wrist strap at your local electronics store or online. You connect the alligator clip to the case of computer, the power is unplugged so it is not grounded but the case will absorb any static electricity you have built up by walking around. Remove all JEWELRY! A checklist of probable no power: House power on? check Power at the receptacle? check (the lamp next to the computer is on right?) Unplugged and plugged in the power cable to both the wall receptacle and the computer power supply? Check Tools: Tools you may need to open your case and remove components: Some of the newer computers do not need tools to get components out, they are secured by spring loaded devices (latches). You will need either a # 2 Philips screw driver or a # 15 torque to remove the screws. Of all the things you need to work on your computer the main one is Information! With information any task can be accomplished. You need to follow a few rules to accomplish your goal. Safety is paramount! Remove all JEWELRY! Rules: 1) Know what your objective is before you start. 2) Research your component, find out if the component will work with your existing hardware before buying. 3) Always unplug the power when working on the computer! 4) Keep static electricity from ruining you computer and replacement parts. (ESD) 5) Read all the instructions that come with the component you are replacing. Check out the How to... pages for more information and guidance. Repair checklist: Checklist for computer repair. Identify the failed part. Disconnect the power cord. Ground yourself. Open the case. Disconnect any cables connected to the component. Remove failed part by either removing the retaining screw or latch. Set the part aside. ENSURE you are grounded. Remove new part from Anti-Static bag. Carefully insert the new component into slot or bay. Secure the part, be careful with screws that go through the component board, too much torque will crack the board. Reconnect the cables for the component if there are any. Check your work, check the adjacent cards, drives, etc. make sure you didn't inadvertently bump something loose. Put case cover back on, this will preclude you from touching any components while the system is powered up. Reconnect any external cables you disconnected. Power up the system. Watch for system startup screen, if you do not get a screen with in two or three seconds power the system down, disconnect the power cord. Something has gone to ground, in other words there is a short between a component's power connection and the ground of the power supply. Once you are certain nothing is loose or you have found the component that is going to ground and have corrected the problem put the case cover back on and reconnect cables and power it up.
PC-PRO Solutions. 2020 All Rights Reserved