Open computer case with a person using an anti-static strap

How To Open Computer Cases Safely

It used to be considered dangerous to attempt to open computer cases in your own home. However now days people ignore this idea and take the risk by repairing their own computers. If you must open your computer case, then there are some common precautions to adhere to. Different computer cases open in different ways. For example a desktop computer case may have two clips or buttons on either side, and when pressed, the case slides off. A tower computer case may need to have screws removed at the back to enable the sides to slide off. Cases are now being designed with easy access as a top priority.

Why would people want to open computer cases?

  1. The most common reason to open computer cases is to upgrade computer memory that is located inside the computer case.
  2. They need to remove dust from their computer as part of their computer maintenance.

How to open a computer case safely

There was always the idea that you needed an antistatic strap before opening a computer case. This is undoubtedly is the safest way to open computer cases, however there are other options. If you do have an antistatic strap I do recommend that you use it, however do not panic if you do not have one. Here is a picture of one of my computers and I have opened the computer case. All I had to do was remove a couple of screws from the back and slide the side of the case backwards, away from the front. These are the best computer cases to open as they are very obvious and easy. Some computer cases I have tried to open have been an absolute nightmare. I could not believe how some computer case manufacturers made it so difficult to open their computer cases. You needed to be a magician to get inside.

Here are a few tips from a self confessed, no frills, computer techie.

How To Open Computer Cases Safely with the correct tools

  1. Remove all power cords that are connected to the computer case.
  2. This includes network cables, modems, printers, everything…Wait a few seconds as the power leaves the main board.
  3. Make sure your hands are clean and definitely DRY. Remove all jewellery.
  4. Open your computer case by unscrewing or unclipping. See your computer manual for instructions if you have problems. Older computers can be difficult to open. Keep any screws or spare parts in a safe place.
  5. To protect your computer from static electricity stored on your body, (ESD) continually touch the unpainted metal part of the computer case to discharge any static. Or if you have a antistatic or grounding strap, use that. I like the one that goes on your wrist. This will prevent the static sensitive components from being ruined. (memory, video card, motherboard)
  6. Ok. Now you are ready to work on the insides of your computer.

How to Open Different Computer Cases: A Comprehensive Guide

Different brands of computers and cases have unique ways of being opened. Understanding how to correctly open your computer case is crucial for performing upgrades, cleaning, or repairs. Always be cautious when opening a computer case, as there can be sharp edges. Take your time and think through each step before proceeding.

General Safety Tips

  • Unplug the Computer: Before opening the case, ensure the computer is completely powered off and unplugged from any electrical outlets.
  • Ground Yourself: Use an anti-static wrist strap or frequently touch a metal part of the case to discharge static electricity.
  • Work on a Clean Surface: Use a clean, flat surface to prevent any small screws or components from getting lost.

Opening Specific Computer Cases

Dell Desktop GX260 or GX270

  1. Locate the Buttons: Find the two buttons on the sides of the case.
  2. Press and Lift: Press the buttons and lift the case open like a hinged door.
  3. Tower Case: For tower cases, press the buttons and swing the door open while the computer is standing.

HP D510 Tower Desktop

  1. Unscrew Knobs: Unscrew the tiny knobs at the back of the case.
  2. Slide Back the Case: Slide the two sides and top back together as a unit.

HP D510 Small Form Desktop

  1. Press the Buttons: Locate the buttons on either side of the case and press them both in.
  2. Slide Off the Cover: Slide the top, sides, and front off in one piece, towards the front.

HP D530 Small Form Desktop

  1. Undo the Thumbscrew: Unscrew the thumbscrew at the back of the case.
  2. Slide the Top Plate: Slide the top plate of the computer towards the back.
  3. Reassembly Caution: When sliding the top back on, ensure the faceplate remains intact.

Dell Dimension 8200 Desktop Computer

  1. Lay the Computer on Its Face: Place the computer with the CD drives and the front face down on the bench.
  2. Press the Button: Locate and press the button on the side of the computer.
  3. Hinge Down the Side: The side of the computer will hinge down like a door.

Generic Computer Case

  1. Locate Screws: Look for screws at the back of the case, which could be Phillips head screws or thumb screws.
  2. Unscrew and Remove the Side Panel: Unscrew the screws and slide or lift the side panel off.

Additional Information for Different Cases

Opening a Mac Mini

  1. Prepare a Putty Knife: Use a thin putty knife to pry open the case.
  2. Insert and Twist: Gently insert the putty knife between the plastic bottom cover and the aluminum body, then twist to pop it open.

Opening an Alienware Desktop

  1. Locate the Lever or Button: Alienware cases often have a lever or button at the back.
  2. Release the Side Panel: Use the lever or button to release and slide off the side panel.

Opening a Lenovo ThinkCentre

  1. Press the Release Latches: Locate the release latches on the sides or the top of the case.
  2. Slide Off the Cover: Press the latches and slide the cover off.

Knowing how to properly open your computer case is essential for maintenance and upgrades. Always ensure that you follow safety protocols to avoid any damage to your computer or injury to yourself. Each computer case may have specific methods for opening, so refer to this guide and consult your computer’s manual if needed.

Opening Computer Cases with Screws

When opening computer cases with screws, it’s crucial to ensure you are removing the correct screws. Here are detailed steps to help you do it correctly:

  1. Identify the Correct Screws:
    • Look for screws located on the back panel of the computer case. These screws usually secure the side panels.
    • Avoid removing screws on the metal parts inside the case, as these hold the internal components, such as the power supply, in place. For example, screws that hold the power supply in place are different from those that secure the side panels.
  2. Inspect the Computer Case:
    • Examine the back of the computer where all the plugs and ports are located. This side typically houses the motherboard.
    • To access the computer’s internal components, you should open the opposite side of where the motherboard is situated. Opening the side where the motherboard is laying will only expose the back of the motherboard, making it difficult to work on the computer.
  3. Remove the Correct Side Panel:
    • In most cases, you will need to remove the side opposite to where the ports and plugs are located.
    • Unscrew the screws indicated by arrows in the diagram below. These screws secure the side panel to the computer case.
    • Once the screws are removed, the side panel should slide back and away from the case, giving you access to the internal components.

Steps in Detail

  1. Locate the Screws:
    • Identify the screws securing the side panel. These are typically found along the edges of the back panel.
    • Example: In the provided diagram, screws are marked with arrows. These are the screws you need to remove.
  2. Avoid Internal Screws:
    • Do not remove screws on internal metal parts. For instance, a screw circled in the diagram holds the power supply and should not be removed unless you are specifically working on the power supply.
  3. Determine the Correct Side to Open:
    • Analyze the side with the ports and plugs. This is the side where the motherboard is mounted.
    • Plan to open the opposite side for easy access to the components.
  4. Remove the Screws:
    • Using a Phillips-head screwdriver, remove the screws marked by the arrows.
    • Keep the screws in a safe place to avoid losing them.
  5. Slide Off the Side Panel:
    • After removing the screws, gently slide the side panel back towards you.
    • The panel should come off easily, revealing the internal components of the computer.

Opening a computer case with screws involves identifying and removing the correct screws to access the internal components. Always be cautious and ensure you are removing the right side panel to avoid facing the back of the motherboard. By following these steps, you can safely and efficiently open your computer case for maintenance or upgrades.

Video showing you how to open computer cases – Different cases require different steps.

Here is a video on how to open computer cases as there are so many different types available. If you have the generic kind which is pictured above then you have an easy job.

8 Comments

  1. Owais Charag

    Dear it was good to read your suggestions…I have small issue with my PC. It has D945GCR Motherboard 1 GB Ram installed. Problem is black scree, when i press ON button the CPU fans start and it also seem computer is booting but there is no display, and constantly the led of floppy drive keep glowing. I checker RAM, Processor, Processor Fan, Power Connections disconnected HDD, DVD ROM, FDD but still same problem. I am not able to figure out wht is the problem and which part is not functionig..What is your suggestion.

    • Khairul

      I have encountered the same problem, but unfortunately, for both of us, this means that the motherboard has shorted, may be due to static, and cannot be repaired. You need a new motherboard.

  2. Mitz

    I do not recommend opening a laptop so you could blow compressor air in where the fan is, and dust will come out …but this is not the best way of course.. It would be better take it somewhere to get it done.

  3. Matt

    I remember having to do this! I have not owned a desktop PC for about 8 years – I’ve always had laptops, but when I did have a desktop I would have to slide the case off for cleaning and sometimes, to let it cool down. Those were the days…

  4. Tonia

    Need help…laptop wont start up…only black screen…can hear fan running and cd rom, but only black screen…help please

  5. Mitz

    Thanks for the tips Simon. There are so many different cases to open it can get confusing.

  6. Paulette

    I am a self taught; slow learner, concerning computers & have found some of this helpful. I do have a question concerning laptops; where is the fan? Where do I spray the air to remove the dust? Is it ok to spray it on my keyboard? Seems this is where most of the dust ect. ends up (as I live in a rural area on a dusty gravel road, my computer accumulates dust & other items. Is it ok to use a vac on the keyboard? Thanks for all the info!!

    • Mitz

      You can feel the air coming from your laptop when it is on. When blowing dust out, Keep blowing through the vents until the dust has stopped coming out. Then go to the other vent and blow dust back the other way. continue until no dust comes out. 🙂

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