The Compaq Presario SR1000 from Hewlett-Packard is a desktop computer that runs the Windows operating system. A video graphics card comes preinstalled on the computer. However, if you want high-end graphics-based programming, such as video and computer animation editing and video games, you need to upgrade the graphics card on the Compaq SR1000.
Log off of Windows and let the computer completely shut down. Once the computer is off, remove all cables connected to the desktop tower, then remove the Phillips screws along the back side of the computer.
Slide open the computer case and look toward the back of the system. In the middle if the motherboard (the large, computer circuit board) you'll see horizontal connection ports. These are the PCI card ports.
Locate the current graphics card. On the exterior of the computer it has the connection port for your monitor.
Push down the small, plastic levers on either side of the card slot. This unlocks the card. Remove the card from the motherboard and set it aside.
Insert the new graphics card into the open slot, then push the small plastic levers back up. This locks the card into place. Slide the cover on the computer back on, then tighten the Phillips screws and attach the cables.
Power on the computer and wait for the operating system to load. Insert the driver installation CD and follow the brief set of prompts once the installation wizard loads.