PDF download Download Article PDF download Download Article

PCI slots on a computer allow you to install a wide variety of expansion cards, ranging from extra USB ports to wireless network cards to dedicated sound cards. Installing a PCI card is one of the easier upgrades you can perform on a computer, and you can have the entire process finished in just a few minutes. See Step 1 below to learn how.

  1. Power down your computer and then unplug the power cable and all the other cables that are connected to the back. Press the Power button once to discharge any static charge present. If you were recently using your computer, wait a few minutes for it to cool before proceeding.
    • Note: Some PCI cards may require you to install drivers before installing the card, but these are rare. Always read the card's documentation before installing.
  2. PCI cards need to be installed onto your Computer's motherboard. To do this, you will need to open your computer so that you can access the insides. Lay the case on your table or workbench, with the connectors on the back closest to the work surface. This will ensure that when you remove the side panel, you will have access to the motherboard.
    • Most cases use thumb screws which can be loosened by hand, though some may require a Phillips screwdriver.
    • Avoid laying the computer on carpet. Friction from the carpet is more likely to generate static electricity, which could then result in an electrostatic discharge.
    Advertisement
  3. You will see rectangular slots on your motherboard that correspond with bays on the back of the case. There are usually one or two PCIe slots closest to the processor, used for graphics cards, followed by one or more PCI slots. You may have expansion cards installed here already, or they may be empty.
    • If you are having difficulty locating your PCI slots, refer to your motherboard's documentation.
  4. Each PCI slot will have a bay associated with it on the back of the computer. When there's nothing installed, the bays are covered by small metal protectors. You can remove one by unscrewing the single screw holding it in place and then lifting it directly out of the case. Set the screw aside.
    • Don't remove any protectors for slots you aren't using, as this will let more dust into the system.
  5. Before handling any computer components, you should ensure that you are properly grounded. This will prevent an electrostatic discharge, which can damage or destroy sensitive computer components.
    • Grounding yourself with an electrostatic wrist strap is the best way to ensure that you are properly grounded. Connect the wrist strap to the exposed metal of your computer case. You can also ground yourself by touching a metal water tap.
  6. Gently remove your new card from the anti-static bag, gripping it by the sides. Do not touch the contacts along the bottom, and try to avoid touching any of the circuitry.
  7. Line up the contacts on the bottom of the PCI card with the PCI slot you plan to insert it into. Press the card firmly straight down into the slot. Ensure that the card is level and seated fully in the slot before continuing.
    • If you have the space, leave an open slot between your new card and any existing card. This will help keep your cards and components cooler.[1]
  8. Use the screw that you removed from the metal bay cover and use it to secure the card into the same hole. Tighten the screw firmly but not so tightly that it will strip later.
    • Your card will be suspended horizontally when you set your case back up, so securing it is very important.
  9. Put your computer's side panel back on and secure it. Set the computer back at the workstation and plug all of the cables back in. If your new PCI card adds ports to your computer, such as USB ports or audio connectors, wait to plug anything into them yet.
  10. Boot up your computer and wait for your operating system to load. Depending on what operating system you have, the card may be automatically detected and installed. If not, insert the disk that came with the card and install the drivers using the Setup program included on the disk.
    • You will typically need to install drivers before the card will function properly.
    • You may need to restart your computer after drivers are installed.
  11. If the card is a USB card, you can now attach your USB devices. If it is a sound card, you can plug your speakers in. If it's a wireless network card, you can attach the antenna.
  12. Advertisement

Community Q&A

Search
Add New Question
  • Question
    What if I do not have the card's installation/driver software?
    Community Answer
    Community Answer
    Check the manufacturer's website. This will ensure that you're getting the latest drivers for your OS.
  • Question
    What type of motherboard do I need for USB 3.0 PCI card use?
    Community Answer
    Community Answer
    All modern motherboards have at least a couple of USB 3 jacks. Usually, which CPU to purchase is the first choice to make. Then, choosing a motherboard which will accept your CPU. You will see that the motherboard you choose will include USB 3. And if I'm understanding your question correctly, since the motherboard will provide USB 3 natively, the USB 3 won't use up any of your PCI slots.
  • Question
    What type of equipment is used to install a PCI card?
    Community Answer
    Community Answer
    For some cards, you literally need no equipment, but for most cards you just need a screwdriver.
See more answers
Ask a Question
200 characters left
Include your email address to get a message when this question is answered.
Submit
Advertisement

Video

Tips

  • While you have your computer open to install the card, take a few minutes to clean out the dust that has built up. This will help prevent your computer from overheating. Use compressed air or a small vacuum to remove dust.
  • Try installing a cooler fan if your hardware is old and your PCI card is latest, in order to reduce the heat.
  • If your PCI device requires extra power, consider upgrading your SMBS.
Submit a Tip
All tip submissions are carefully reviewed before being published
Name
Please provide your name and last initial
Thanks for submitting a tip for review!
Advertisement

Warnings

Advertisement

You Might Also Like

Build a Computer Build a Computer
Set up a Wireless Network (WiFi) Connection Set Up and Connect to a Wi-Fi Network: Easy Guide
Install a Graphics Card Install a Graphics Card (GPU) in Your Windows PC
Install RAMInstall RAM
Change PC RgbCustomize RGB Lighting on a Gaming PC: LEDs, Fans, & More
Turn Off Hardware Acceleration Disable Hardware Acceleration in Windows & Chrome
Identify the Motherboard6 Easy Ways to Determine the Type of Motherboard You Have
Check CPU Speed Check CPU Clock Speed on your Windows, Mac, or Linux Computer
Check Computer Specifications Find Computer Hardware and System Specifications
Change Fan Settings if Bios' Power Options Are HiddenChange Fan Settings if Bios' Power Options Are Hidden
Check Graphic Card Memory in Windows 10 Check Your Graphics Card Memory in Windows 10
Tell if My Gpu Is Dying Tell if Your GPU is Dying
Undervolt Gpu Undervolt a GPU to Lower Temps and Reduce Power Usage
Diagnose and Replace a Failed PC Power SupplyDiagnose and Replace a Failed PC Power Supply
Advertisement

About This Article

Yaffet Meshesha
Co-authored by:
Computer Specialist
This article was co-authored by Yaffet Meshesha. Yaffet Meshesha is a Computer Specialist and the Founder of Techy, a full-service computer pickup, repair, and delivery service. With over eight years of experience, Yaffet specializes in computer repairs and technical support. Techy has been featured on TechCrunch and Time. This article has been viewed 204,774 times.
How helpful is this?
Co-authors: 13
Updated: February 24, 2024
Views: 204,774
Categories: Computer Hardware
Thanks to all authors for creating a page that has been read 204,774 times.

Reader Success Stories

  • olezhon1

    olezhon1

    Jul 2, 2017

    "Loved the detail and thoroughly instructions. Great, thanks!"
    Rated this article:
Share your story

Is this article up to date?

Advertisement