Fan Support; Baseboard Programming; Pci Configuration Space Map; Interrupts - Intel SRMK2 - Server Platform - 0 MB RAM Technical Specifications

3.15

Fan Support

The backplane powers nine 40mm system fans. Additionally, it incorporates logic to control and
monitor the tachometer speed of fans. Eight of those fans are 40mm x 28mm. The ninth fan is
40mm x 17mm and provides cooling to the PCI add-in card area.
3.16

Baseboard Programming

3.16.1 PCI Configuration Space Map

Bus Device
Number Number
(hex) (hex)
00 00
00 00
00 01
00 02
00 03
00 05
00 06
00 0F
00 0F
01 02
01 03
01 04

3.16.2 Interrupts

Table 19 lists the system interrupts for the SRMK2.
Table 19: PCI Interrupt to OSB4 IRQ Input Mapping
OSB4 Input
PCIIRQ0
PCIIRQ1
PCIIRQ2
PCIIRQ3
PCIIRQ4
PCIIRQ5
PCIIRQ6
PCIIRQ7
PCIIRQ8
PCIIRQ9
PCIIRQ10
PCIIRQ11
Intel ® SRMK2 Internet Server Technical Product Specification
Table 18: PCI Configuration Space Map
Function
Number
(hex)
00 CNB30LE Host Bridge Function 32 bit PCI (P1_AD[16])
01 CNB30LE 2
NA PCI32 VIDEO (P1_AD[17])
NA PCI32 SLOT1 (P1_AD[18])
NA PCI32 SLOT2 (P1_AD[19])
NA PCI32 LAN1
NA PCI32 LAN2
00 OSB4 SMB Bus, PCI Configuration Registers (P1_AD[31])
01 OSB4 Ultra DMA IDE bus master (P1_AD[31])
NA PCI64 SLOT1 (P2_AD[18])
NA PCI 64 SLOT2 (P2_AD[19])
NA PCI 64 SCSI
PCI Interrupt
LAN1 IRQ#
LAN2 IRQ#
P1S1_INTAC# (PCI32 Slot1 Interrupts A & C)
P1S1_INTBD# (PCI32 Slot1 Interrupts B & D)
P1S2_INTAC# (PCI32 Slot2 Interrupts A & C)
P1S2_INTBD# (PCI32 Slot2 Interrupts B & D)
FP_IRQ# (Front Panel IRQ#)
VID_IRQ# (Video IRQ#)
SCSI_IRQA#
SCSI_IRQB#
P2S1_INTAC# (PCI64 Slot1 Interrupts A & C)
P2S1_INTBD# (PCI64 Slot1 Interrupts B & D)
Description
nd
Host Bridge Function 64 Bit PCI (P1_AD[16])
(P1_AD[23])
(P1_AD[24])
(P2_AD[20])
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