Microsoft MOTHERBOARD USER'S GUIDE PXP43 - Manual (Page 17)

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Installing the Motherboard
Chapter 2: Installing the Motherboard
Expansion Slots
Installing Add-on Cards
The slots on this motherboard are designed to hold expansion cards and connect
them to the system bus. Expansion slots are a means of adding or enhancing the
motherboard’s features and capabilities. With these efficient facilities, you can
increase the motherboard’s capabilities by adding hardware that performs tasks that
are not part of the basic system.
PCIEX16_1 Slot The PCI Express x16 slot is used to install the external PCI
Express graphics cards that are fully compliant to the PCI
Express Base Specification Revision 2.0.
PCI2~3 Slots This motherboard is equipped with two standard PCI slots.
PCI stands for Peripheral Component Interconnect and is a
bus standard for expansion cards, which for the most part, is a
supplement of the older ISA bus standard. The PCI slots on
this board are PCI v2.3 compliant.
The PCI Express x1 slots are fully compliant to the PCI
Express Base Specification Revision 1.1. PCIE1~3 Slots
Before installing an add-on card, check the documentation for the card
carefully. If the card is not Plug and Play, you may have to manually
configure the card before installation.