Craig Hart's PCI+AGP bus sniffer, version 0.45á, freeware made in 1996-2001.

PCI BIOS Version 2.10 found!
Number of PCI Busses : 3
PCI Characteristics  : Config Mechanism 1 

Searching for PCI Devices using the System BIOS

 Vendor 8086h Intel Corporation
 Device 1A30h 82845E Brookdale Host-Hub Interface Bridge (E0-step)
 Command 0106h (Memory Access, BusMaster, System Errors)
 Status 2090h (Has Capabilities List, Supports Back-To-Back Trans., Received Master Abort, Fast Timing)
 Revision 11h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Bridge, type PCI to HOST
 Subsystem ID 1A308086h Unknown (Generic ID)
 Subsystem Vendor 8086h Intel Corporation
 Address 0 is a Memory Address (anywhere in 0-4Gb, Prefetchable) : F8000000h
 New Capabilities List Information :
  Vendor-Dependant Capability
  AGP Capabilities, Version 2.0
    AGP Speed(s) Supported : 1x 2x 4x 
    FW Transfers Supported : Yes
    >4Gb Address Space Supported : No
    Sideband Addressing Supported : Yes
    Maximum Command Queue Length : 32 bytes
    AGP Speed Selected : None Selected
    FW Transfers Enabled : No
    >4Gb Address Space Enabled : No
    AGP Enabled : No
    Sideband Addressing Enabled : No
    Current Command Queue Length : 1 byte

 Vendor 8086h Intel Corporation
 Device 1A31h 82845E Brookdale Host-AGP Bridge (E0-step)
 Command 0107h (I/O Access, Memory Access, BusMaster, System Errors)
 Status 00A0h (Supports 66MHz, Supports Back-To-Back Trans., Fast Timing)
 Revision 11h, Header Type 01h, Bus Latency 20h
 Self test 00h (Self test not supported)
 PCI Class Bridge, type PCI to PCI
 Primary bus number 0, Secondary bus number 1, Subordinate bus number 1
 Secondary bus latency 20h, Secondary bus status 22A0h
 Secondary bus controls : VGA mapping
 I/O Port range accessable beyond bridge : F000h to 0FFFh

 Vendor 8086h Intel Corporation
 Device 24C2h 82801DB (ICH4) USB UHCI Controller #1
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 01h, Header Type 80h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type USB (UHCI)
 Subsystem ID 50328086h Unknown
 Subsystem Vendor 8086h Intel Corporation
 Address 4 is an I/O Port : 0000E800h
 System IRQ 11, INT# A

 Vendor 8086h Intel Corporation
 Device 24C4h 82801DB (ICH4) USB UHCI Controller #2
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 01h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type USB (UHCI)
 Subsystem ID 50328086h Unknown
 Subsystem Vendor 8086h Intel Corporation
 Address 4 is an I/O Port : 0000E880h
 System IRQ 5, INT# B

 Vendor 8086h Intel Corporation
 Device 24C7h 82801DB (ICH4) USB UHCI Controller #3
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 01h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type USB (UHCI)
 Subsystem ID 50328086h Unknown
 Subsystem Vendor 8086h Intel Corporation
 Address 4 is an I/O Port : 0000EC00h
 System IRQ 9, INT# C

 Vendor 8086h Intel Corporation
 Device 24CDh 82801DB (ICH4) USB EHCI Controller
 Command 0106h (Memory Access, BusMaster, System Errors)
 Status 0290h (Has Capabilities List, Supports Back-To-Back Trans., Medium Timing)
 Revision 01h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type USB (UHCI)USB (OHCI)USBUSB Device
 Subsystem ID 50328086h Unknown
 Subsystem Vendor 8086h Intel Corporation
 Address 0 is a Memory Address (anywhere in 0-4Gb) : FEBFFC00h
 System IRQ 10, INT# D
 New Capabilities List Information :
  Power Management Capabilities
    Current Power State : D0 (Device fully-operational, no power saving)
  Unknown Capability (Code 0Ah)!!

 Vendor 8086h Intel Corporation
 Device 244Eh 82801DB Hub Interface to PCI Bridge (ICH4 A1 step)
 Command 0107h (I/O Access, Memory Access, BusMaster, System Errors)
 Status 8080h (Supports Back-To-Back Trans., Detected Parity Error, Fast Timing)
 Revision 81h, Header Type 01h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Bridge, type PCI to PCI
 Primary bus number 0, Secondary bus number 2, Subordinate bus number 2
 Secondary bus latency 20h, Secondary bus status 2280h
 Secondary bus controls : ISA mapping
 I/O Port range accessable beyond bridge : D000h to DFFFh

 Vendor 8086h Intel Corporation
 Device 24C0h 82801DB (ICH4) LPC Interface Bridge
 Command 010Fh (I/O Access, Memory Access, BusMaster, Special Cycles, System Errors)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 01h, Header Type 80h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Bridge, type PCI to ISA

 Vendor 8086h Intel Corporation
 Device 24CBh 82801DB (ICH4) UltraATA/100 EIDE Controller
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 01h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Storage, type IDE
 PCI EIDE Controller Features :
  BusMaster EIDE is supported
  Primary   Channel is at I/O Port 01F0h and IRQ 14
  Secondary Channel is at I/O Port 0170h and IRQ 15
 Subsystem ID 50328086h Unknown
 Subsystem Vendor 8086h Intel Corporation
 Address 0 is an I/O Port : 00000000h
 Address 1 is an I/O Port : 00000000h
 Address 2 is an I/O Port : 00000000h
 Address 3 is an I/O Port : 00000000h
 Address 4 is an I/O Port : 0000FFA0h

 Vendor 8086h Intel Corporation
 Device 24C3h 82801DB (ICH4) SMBus Controller
 Command 0001h (I/O Access)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 01h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type SMBus Controller
 Subsystem ID 50328086h Unknown
 Subsystem Vendor 8086h Intel Corporation
 Address 4 is an I/O Port : 0000E480h
 System IRQ 3, INT# B

 Vendor 10DEh Nvidia Corp
 Device 0201h GeForce3 Ti 200 [NV20DDR] 
 Command 0007h (I/O Access, Memory Access, BusMaster)
 Status 02B0h (Has Capabilities List, Supports 66MHz, Supports Back-To-Back Trans., Medium Timing)
 Revision A3h, Header Type 00h, Bus Latency 20h
 Self test 00h (Self test not supported)
 PCI Class Display, type VGA
 Subsystem ID 00301545h Unknown
 Subsystem Vendor 1545h Visiontek
 Address 0 is a Memory Address (anywhere in 0-4Gb) : FD000000h
 Address 1 is a Memory Address (anywhere in 0-4Gb, Prefetchable) : F0000000h
 Address 2 is a Memory Address (anywhere in 0-4Gb, Prefetchable) : F4680000h
 System IRQ 11, INT# A
 Expansion ROM of 64Kb decoded by this card
 New Capabilities List Information :
  Power Management Capabilities
    Current Power State : D0 (Device fully-operational, no power saving)
  AGP Capabilities, Version 2.0
    AGP Speed(s) Supported : 1x 2x 4x 
    FW Transfers Supported : No
    >4Gb Address Space Supported : No
    Sideband Addressing Supported : No
    Maximum Command Queue Length : 32 bytes
    AGP Speed Selected : None Selected
    FW Transfers Enabled : No
    >4Gb Address Space Enabled : No
    AGP Enabled : No
    Sideband Addressing Enabled : No
    Current Command Queue Length : 1 byte

 Vendor 1102h Creative Labs
 Device 0004h EMU10K2 Audio Chipset (SB Audigy)
 Command 0105h (I/O Access, BusMaster, System Errors)
 Status 0290h (Has Capabilities List, Supports Back-To-Back Trans., Medium Timing)
 Revision 03h, Header Type 80h, Bus Latency 20h
 Self test 00h (Self test not supported)
 PCI Class Multimedia, type Audio
 Subsystem ID 00511102h SB0090 Audigy Platinum 
 Subsystem Vendor 1102h Creative Labs
 Address 0 is an I/O Port : 0000D880h
 System IRQ 9, INT# A
 New Capabilities List Information :
  Power Management Capabilities
    Supports power state D2
    Supports power state D1
    Current Power State : D0 (Device fully-operational, no power saving)

 Vendor 1102h Creative Labs
 Device 7003h Audigy Gameport Joystick
 Command 0105h (I/O Access, BusMaster, System Errors)
 Status 0290h (Has Capabilities List, Supports Back-To-Back Trans., Medium Timing)
 Revision 03h, Header Type 80h, Bus Latency 20h
 Self test 00h (Self test not supported)
 PCI Class Input, type Other
 Subsystem ID 00401102h Audigy Gameport Joystick
 Subsystem Vendor 1102h Creative Labs
 Address 0 is an I/O Port : 0000DC00h
 New Capabilities List Information :
  Power Management Capabilities
    Supports power state D2
    Supports power state D1
    Current Power State : D0 (Device fully-operational, no power saving)

 Vendor 1102h Creative Labs
 Device 4001h Audigy IEEE1394 Firewire Controller 
 Command 0116h (Memory Access, BusMaster, MemWrite+Invalidate, System Errors)
 Status 0210h (Has Capabilities List, Medium Timing)
 Revision 00h, Header Type 80h, Bus Latency 20h
 Self test 00h (Self test not supported)
 Cache line size 32 Bytes (8 DWords)
 PCI Class Serial, type OHCI FireWire
 Subsystem ID 00101102h Unknown
 Subsystem Vendor 1102h Creative Labs
 Address 0 is a Memory Address (anywhere in 0-4Gb) : FEAFF800h
 Address 1 is a Memory Address (anywhere in 0-4Gb) : FEAF8000h
 System IRQ 5, INT# B
 New Capabilities List Information :
  Power Management Capabilities
    Supports power state D2
    Supports power state D1
    Current Power State : D0 (Device fully-operational, no power saving)

 Vendor 8086h Intel Corporation
 Device 1039h 82801DB (ICH4) PRO/100 VE Network Connection
 Command 0117h (I/O Access, Memory Access, BusMaster, MemWrite+Invalidate, System Errors)
 Status 0290h (Has Capabilities List, Supports Back-To-Back Trans., Medium Timing)
 Revision 81h, Header Type 00h, Bus Latency 20h
 Self test 00h (Self test not supported)
 Cache line size 32 Bytes (8 DWords)
 PCI Class Network, type Ethernet
 Subsystem ID 30068086h Unknown
 Subsystem Vendor 8086h Intel Corporation
 Address 0 is a Memory Address (anywhere in 0-4Gb) : FEAFE000h
 Address 1 is an I/O Port : 0000D800h
 System IRQ 4, INT# A
 New Capabilities List Information :
  Power Management Capabilities
    Supports power state D2
    Supports power state D1
    Current Power State : D0 (Device fully-operational, no power saving)

ROM PCI IRQ routing table Windows 9x Compatibility Tests....
 ROM IRQ routing table found at F000h:4760h
 Table Version 1.0 - OK
 Table size 192 bytes - OK
 Table Checksum 16h - OK
 IRQ's dedicated to PCI : None
 The ROM PCI IRQ routing table appears to be OK.

IRQ Summary: IRQs 3,4,5,9,10,11,14,15 are used by PCI devices
Shared IRQs: IRQ 5 is shared by 2 PCI Devices
             IRQ 9 is shared by 2 PCI Devices
             IRQ 11 is shared by 2 PCI Devices