MSI E7320 User Manual - Page 32

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Hardware Setup Slots 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. PCIX1: PCIX-64 slot, 66MHz, 3.3V device only PCIX2: PCIX-64 slot, 66MHz, 3.3V device only PCIE1: PCI Express x8 slot PCI1: PCI-32 slot from Hance Rapids, 33MHz, 3.3V device only MSI Reminds You... When adding or removing expansion cards, make sure that you unplug the power supply first. Meanwhile, read the documentation for the expansion card to configure any necessary hardware or software 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 pins as follows: PCI33-32 Routing (From Hance Rapids) PCI DEVICE PCI Slot1 ATI VGA BCM 5705 IDSEL AD20 AD21 AD22 INT A PIRQ#A PIRQ#C PIRQ#D INT B PIRQ#B INT C PIRQ#3 INT D PIRQ#4 REQ REQ#0 REQ#1 REQ#2 GNT GNT#0 GNT#1 GNT#2 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 INT A PXIRQ#0 PXIRQ#1 PXIRQ#2 INT B PXIRQ#1 PXIRQ#2 INT C PXIRQ#2 PXIRQ#3 INT D PXIRQ#3 PXIRQ#0 REQ PXREQ#0 PXREQ#1 PXREQ#2 GNT PXGNT#0 PXGNT#1 PXGNT#2 2-19

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2-19
Hardware Setup
Slots
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.
PCIE1:
PCI Express x8 slot
PCI1:
PCI-32 slot from Hance Rapids,
33MHz, 3.3V device only
PCIX2:
PCIX-64 slot, 66MHz,
3.3V device only
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:
PCIX1:
PCIX-64 slot, 66MHz,
3.3V device only
PCI33-32 Routing (From Hance Rapids)
PCI DEVICE
IDSEL
INT A
INT B
INT C
INT D
REQ
GNT
PCI Slot1
AD20
PIRQ#A
PIRQ#B
PIRQ#3
PIRQ#4
REQ#0
GNT#0
ATI
VGA
AD21
PIRQ#C
REQ#1
GNT#1
BCM 5705
AD22
PIRQ#D
REQ#2
GNT#2
Primary IDE Interrupt: IRQ14 (For ICH-HR)
Secondary IDE Interrupt: IRQ15 (For ICH-HR)
PCIX-64 Routing (From Hance Rapids)
PCI DEVICE
IDSEL
INT A
INT B
INT C
INT D
REQ
GNT
PCIX-64 Slot1
PXAD17
PXIRQ#0
PXIRQ#1
PXIRQ#2
PXIRQ#3
PXREQ#0
PXGNT#0
PCIX-64 Slot2
PXAD18
PXIRQ#1
PXIRQ#2
PXIRQ#3
PXIRQ#0
PXREQ#1
PXGNT#1
AIC-7901 SCSI
PXAD19
PXIRQ#2
PXREQ#2
PXGNT#2