Chapter 2
2-24
Order 1 Order 2 Order 3 Order 4
1394 INT
D#
PCI Slot
INT B#
INT C# INT D# INT A#
PCI Interrupt Request Routing
The IRQ, abbreviation of interrupt request line and pronounced I-R-Q,
are hardware lines over which devices can send interrupt signals to the
microprocessor. The “AGP/PCI” IRQ pins are typically connected to the PCI
bus INT A# ~ INT D# pins as follows:
The mainboard provides one 32-bit Master PCI bus slot.
The PCI slot allows you to insert PCI Riser Card. The PCI Riser Card is
included in the MS-6255 barebone. The Riser Card allows you to insert two
expansion cards. You can insert any type of PCI 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.
2.11 Slot
PCI Slot 1
PCI Riser Card
