Slots; Pci Slot; Pci (Peripheral Component Interconnect) Slots; Pci Interrupt Request Routing - MSI E7320 Master-S User Manual

PCI (Peripheral Component Interconnect) Slots

The motherboard provides one 32-bit Master PCI slot, two 64-bit PCI-X slots,
and one PCI Express x8 slot.
MSI Reminds You...
When adding or removing expansion cards, make sure that you unplug
the power supply first. Meanwhile, read the documentation for the ex-
pansion card to configure any necessary hardware or software set-
tings 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 hard-
ware lines over which devices can send interrupt signals to the microprocessor. The
PCI IRQ pins are typically connected to the PCI bus pins as follows:
PCI33-32 Routing (From Hance Rapids)
PCI DEVICE IDSEL

PCI Slot1

AD20
ATI VGA AD21
BCM 5705 AD22
Primary IDE Interrupt: IRQ14 (For ICH-HR)
Secondary IDE Interrupt: IRQ15 (For ICH-HR)
PCIX-64 Routing (From Hance Rapids)
PCI DEVICE IDSEL
PCIX-64 Slot1 PXAD17
PCIX-64 Slot2 PXAD18
AIC-7901 SCSI PXAD19

Slots

PCIE1: PCI Express x8 slot
PCI1: PCI-32 slot from Hance Rapids,
33MHz, 3.3V device only
INT A INT B INT C
PIRQ#A PIRQ#B PIRQ#3
PIRQ#C
PIRQ#D
INT A INT B INT C
PXIRQ#0 PXIRQ#1 PXIRQ#2
PXIRQ#1 PXIRQ#2 PXIRQ#3
PXIRQ#2
Hardware Setup
PCIX1: PCIX-64 slot, 66MHz,
3.3V device only
PCIX2: PCIX-64 slot, 66MHz,
3.3V device only
INT D REQ GNT
PIRQ#4 REQ#0 GNT#0
REQ#1 GNT#1
REQ#2 GNT#2
INT D REQ GNT
PXIRQ#3 PXREQ#0 PXGNT#0
PXIRQ#0 PXREQ#1 PXGNT#1
PXREQ#2 PXGNT#2
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