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pci slot types

Different types of PCI expansion slot

As PCI expansion slots have grown and become the default expansion technology for industrial applications so has the range of available PCI expansion slot technologies. It is easy to confuse the standards of numbers. Let’s take a look and see what they do. The best industrial computers offer a combination of these expansion slots to suit a variety of devices.


1. A 3.3V / 5V 32-bit PCI -PCI slot remains an acceptable standard despite some newer fixes. Standard PCI uses five volts. It can be distinguished from the rare type of 3.3 volts by the location of the slot in the slot. 


If the slot is on the edge of the motherboard the slot is 5 volts. If the slot is in the direction of the center of the motherboard it is 3.3 volts. The different voltages are matched to different slots on the device card.


2. PCI slot of 3.3 / 5V 64-bit - an extended connector can allow the device bus to double the data transfer speed. 3.3V / 5V 64 Longer slot to accommodate the additional connectors required.


3. PCI-X - PCI-X is a dual-slot PCI slot and runs 4 times faster. It has improved the 32-bit PCI Local Bus for higher bandwidth requirements for servers. It itself has been replaced in modern designs by PCI Express.


4. PCIe PCI Express slots are used in consumer server and industrial applications as a motherboard-level connection (to link peripherals installed in a motherboard) and as an expansion card slot type interface to add-on boards. 


PCIe is based on point-to-point serial links rather than on a common parallel bus architecture like regular PCI. PCIe x1 PCIe x4 PCIe x16 are different types of slot sizes in the PCIe expansion, PCIe standard.


PC expansion slots


Alternatively known as a bus slot or expansion port an expansion slot is a connection or port located inside a computer on the motherboard or riser board that allows a computer hardware expansion card to be connected. 


For example, if you want to install a new video card on your computer you would purchase a video expansion card and install that card in the corresponding expansion slot.


Many of the expansion card slots below are outdated. You probably only encounter AGP PCI and PCI Express slot types when working with computers today. There are three different types of PCI Express PCI slots and AGP expansion slots.


▪ PCI - network card SCSI sound card video card

▪ PCI Express - video card

▪ AGP - video card

▪ ISA - network card sound card video card

▪ AMR - modem sound card

▪ CNR - modem network card sound card

▪ EISA - SCSI network card video card

▪ VESA - video card


PCI Express

The best type of expansion slot on your computer is PCI Express also written as PCIe. Without boring you the types of PCI Express expansion slots communicate with the motherboard and the processor quickly and efficiently.


PCI

A PCI slot is the most common form of internal expansion for a computer.


Some computers have a mixture of PCI and PCI Express types of slots. If so go with the PCI Express slot types when you have this option to choose.


AGP

This type of expansion slot is specifically designed to handle graphics adapters. In fact, AGP represents an accelerated (graphic card types) port slot. Older computers may play in this expansion slot but the best video cards use PCI Express.


ISA

The oldest type of expansion slot is ISA which represents industry-standard architecture. This is because it was never there until another better type of PCI expansion slot arrived. ISA slots rotate to be compatible with older expansion cards.

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