PCI slots are usually cream color whereas AGP is usually maroon colored.
The PCI (Peripheral Component Interconnect) slot was created in 1990 by Intel as a replacement for the ISA (Industry Standard Architecture) and VESA (VL Local Bus, sometimes called VLB). The system was officially used for the first time in 1994 and as of October, 2010 is still in use in many computers. AGP (Advanced Graphics Port) was also created by Intel in 1997. It was intended to address the problems of bottlenecks in the PCI bus and was designed specifically for graphics cards. The system has several versions, 1x, 2x, 4x and 8x, though the 4x/8x slot is not backward compatible with 1x and 2x AGP since it uses a different level of voltage.
Instructions
1. Look at your motherboard and identify where the expansion slots are. They are long, narrow slots and they will be along one edge of the motherboard. If your motherboard is already installed inside the computer, the slots will be facing the back of the computer.
2. Examine the placement of the slots on your motherboard. The AGP slot will be slightly off center from the PCI slots. There will also likely be more than one PCI slot while there will likely be only one AGP slot.
3. Examine the color of the slots. PCI slots are typically cream color while the AGP slot is typically a darker, maroon color.
Tags: your motherboard, cream color