Agp (Accelerated Graphics Port) Slot; Pci (Peripheral Component Interconnect) Slots - MSI MS-6555 Manual

Slots
The motherboard provides three 32-bit Master PCI bus slots, one AGP
slot and one CNR slot.
AGP Slot
PCI Slots
CNR Slot

AGP (Accelerated Graphics Port) Slot

The AGP slot allows you to insert the AGP graphics card. AGP is an
interface specification designed for the throughput demands of 3D graphics.
It introduces a 66MHz, 32-bit channel for the graphics controller to directly
access main memory. The slot only supports 1.5V 4x AGP card.

PCI (Peripheral Component Interconnect) Slots

Three PCI slots allow you to insert the expansion cards to meet your
needs. When adding or removing expansion cards, make sure that you unplug
the power supply first. Meanwhile, read the documentation for the expansion
card to make any necessary hardware or software settings for the expansion
card, such as jumpers, switches or BIOS configuration.
CNR (Communication Network Riser)
The CNR slot allows you to insert the CNR expansion cards. CNR is a
specially designed network, audio, or modem riser card for ATX family
motherboards. Its main processing is done through software and controlled by
the motherboard's chipset.
Hardware Setup
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