MSI K8T MASTER2-FAR User Guide - Page 40

MS-9617 ATX Workstation Board Slots This mainboard provides one AGP Pro slot and four 32-bit/33MHz PCI slots. AGP (Accelerated Graphics Port) Pro Slot AGP Pro is a Hardware Interface for high-power graphics cards which can deliver more electrical power than the standard AGP Hardware Interface. It is simply an extended slot that adds power pins to both ends of the slot to facilitate certain graphics cards' added power requirements. Because of its added pins, an AGP Pro card won't fit into a standard slot. For the same reason, however, motherboards with a wider AGP Pro slot can accommodate a standard card. In this case, the added power pins of an AGP Pro slot go safely unused. PCI (Peripheral Component Interconnect) Slots The PCI slots allow you to insert the expansion cards to meet your needs. W hen 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 sof tware settings for the expansion card, such as jumpers, switches or BIOS configuration. PCI Interrupt Request Routing The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hardware lines over which devices can send interrupt signals to the microprocessor. The PCI IRQ pins are typically connected to the PCI bus INT A# ~ INT D# pins as follows: PCI Slot 1 PCI Slot 2 PCI Slot 3 PCI Slot 4 Order 1 INT A# INT B# INT C# INT D# Order 2 INT B# INT C# INT D# INT A# Order 3 INT C# INT D# INT A# INT B# Order 4 INT D# INT A# INT B# INT C# 2-24