Craig Hart's PCI+AGP bus sniffer, version 0.48vkA, freeware made in 1996-2003.

PCI BIOS Version 2.10 found!
Number of PCI Busses : 9
PCI Characteristics  : Config Mechanism 1 

Searching for PCI Devices using the OEMHLP$ driver

 Vendor 8086h Intel Corporation
 Device 3575h 82830M/MG/MP SDRAM Controller / Host-hub Interface (A6-step)
 Command 0106h (Memory Access, BusMaster, System Errors)
 Status 2010h (Has Capabilities List, Received Master Abort, Fast Timing)
 Revision 04h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Bridge, type PCI to HOST
 Subsystem ID 021D1014h Unknown
 Subsystem Vendor 1014h IBM
 Address 0 is a Memory Address (anywhere in 0-4Gb, Prefetchable) : D0000000h
 New Capabilities List Present:
   Vendor-Dependant Capability
   AGP Capability, Version 2.0 (AGP 4x and below support)
     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 : 4x 
     FW Transfers Enabled : No
     >4Gb Address Space Enabled : No
     AGP Enabled : Yes
     Sideband Addressing Enabled : No
     Current Command Queue Length : 1 byte

 Vendor 8086h Intel Corporation
 Device 3576h 82830M/MP CPU to AGP Bridge (A6-step)
 Command 0107h (I/O Access, Memory Access, BusMaster, System Errors)
 Status 0020h (Supports 66MHz, Fast Timing)
 Revision 04h, Header Type 01h, Bus Latency 60h
 Self test 00h (Self test not supported)
 PCI Class Bridge, type PCI to PCI
 PCI Bridge Information:
   Primary Bus Number 0, Secondary Bus Number 1, Subordinate bus number 1
   Secondary Bus Command 000Ch (ISA mapping, VGA mapping)
   Secondary Bus Status 22A0h (Supports 66MHz, Supports Back-To-Back Trans., Received Master Abort, Medium Timing)
   Secondary Bus Latency 40h
   I/O Port Range Passed to Secondary Bus : None
   Memory   Range Passed to Secondary Bus : C0100000h to C01FFFFFh
   Prefectchable Memory Range Passed to Secondary Bus : E0000000h to EBFFFFFFh

 Vendor 8086h Intel Corporation
 Device 2482h 82801CA USB Controller #1 (ICH3-S B1 step)
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 02h, Header Type 80h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type USB (UHCI)
 Subsystem ID 02201014h Unknown
 Subsystem Vendor 1014h IBM
 Address 4 is an I/O Port : 00001800h
 System IRQ 11, INT# A

 Vendor 8086h Intel Corporation
 Device 2484h 82801CA USB Controller #2 (ICH3-S B1 step)
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 02h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type USB (UHCI)
 Subsystem ID 02201014h Unknown
 Subsystem Vendor 1014h IBM
 Address 4 is an I/O Port : 00001820h
 System IRQ 11, INT# B

 Vendor 8086h Intel Corporation
 Device 2487h 82801CA USB Controller #3 (ICH3-S B1 step)
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 02h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type USB (UHCI)
 Subsystem ID 02201014h Unknown
 Subsystem Vendor 1014h IBM
 Address 4 is an I/O Port : 00001840h
 System IRQ 11, INT# C

 Vendor 8086h Intel Corporation
 Device 2448h 82801BAM/CAM/DBM (ICH2-M/3-M/4-M) Hub Interface to PCI Bridge
 Command 0107h (I/O Access, Memory Access, BusMaster, System Errors)
 Status 0080h (Supports Back-To-Back Trans., Fast Timing)
 Revision 42h, Header Type 01h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Bridge, type PCI to PCI
 PCI Bridge Information:
   Primary Bus Number 0, Secondary Bus Number 2, Subordinate bus number 8
   Secondary Bus Command 0004h (ISA mapping)
   Secondary Bus Status 2280h (Supports Back-To-Back Trans., Received Master Abort, Medium Timing)
   Secondary Bus Latency 40h
   I/O Port Range Passed to Secondary Bus : 2000h to 6FFFh (16-bit)
   Memory   Range Passed to Secondary Bus : C0200000h to CFFFFFFFh
   Prefectchable Memory Range Passed to Secondary Bus : F0000000h to F7FFFFFFh

 Vendor 8086h Intel Corporation
 Device 248Ch 82801CAM (ICH3-M) LPC Interface
 Command 000Fh (I/O Access, Memory Access, BusMaster, Special Cycles)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 02h, 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 248Ah 82801CAM (ICH3-M) UltraATA/100 EIDE Controller
 Command 0007h (I/O Access, Memory Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 02h, 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 02201014h Unknown
 Subsystem Vendor 1014h IBM
 Address 0 is an I/O Port : 000001F0h
 Address 1 is an I/O Port : 000003F4h
 Address 2 is an I/O Port : 00000170h
 Address 3 is an I/O Port : 00000374h
 Address 4 is an I/O Port : 00001860h

 Vendor 8086h Intel Corporation
 Device 2483h 82801CA SMBus Controller (ICH3-S B1 step)
 Command 0001h (I/O Access)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 02h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Serial, type SMBus Controller
 Subsystem ID 02201014h Unknown
 Subsystem Vendor 1014h IBM
 Address 4 is an I/O Port : 00001880h
 System IRQ 11, INT# B

 Vendor 8086h Intel Corporation
 Device 2485h 82801CA AC'97 Audio Controller (ICH3-S B1 step)
 Command 0005h (I/O Access, BusMaster)
 Status 0280h (Supports Back-To-Back Trans., Medium Timing)
 Revision 02h, Header Type 00h, Bus Latency 00h
 Self test 00h (Self test not supported)
 PCI Class Multimedia, type Audio
 Subsystem ID 02221014h Unknown
 Subsystem Vendor 1014h IBM
 Address 0 is an I/O Port : 00001C00h
 Address 1 is an I/O Port : 000018C0h
 System IRQ 11, INT# B

 Vendor 5333h S3 Inc
 Device 8C2Eh 86C584 SuperSavage/IXC SDRAM
 Command 0007h (I/O Access, Memory Access, BusMaster)
 Status 0230h (Has Capabilities List, Supports 66MHz, Medium Timing)
 Revision 05h, Header Type 00h, Bus Latency 40h
 Self test 00h (Self test not supported)
 Cache line size 32 Bytes (8 DWords)
 PCI Class Display, type VGA
 Subsystem ID 01FC1014h 86C584 SuperSavage/IXC IBM
 Subsystem Vendor 1014h IBM
 Address 0 is a Memory Address (anywhere in 0-4Gb) : C0100000h
 Address 1 is a Memory Address (anywhere in 0-4Gb, Prefetchable) : E8000000h
 Address 2 is a Memory Address (anywhere in 0-4Gb, Prefetchable) : E4000000h
 Address 3 is a Memory Address (anywhere in 0-4Gb, Prefetchable) : E0000000h
 System IRQ 11, INT# A
 Expansion ROM of 64Kb decoded by this card
 New Capabilities List Present:
   Power Management Capability
     Supports power state D1
     Current Power State : D0 (Device operational, no power saving)
   AGP Capability, Version 2.0 (AGP 4x and below support)
     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 : 4x 
     FW Transfers Enabled : No
     >4Gb Address Space Enabled : No
     AGP Enabled : Yes
     Sideband Addressing Enabled : No
     Current Command Queue Length : 1 byte

 Vendor 104Ch Texas Instruments (TI)
 Device AC51h PCI1420 PC card CardBus Controller
 Command 0107h (I/O Access, Memory Access, BusMaster, System Errors)
 Status 0210h (Has Capabilities List, Medium Timing)
 Revision 00h, Header Type 82h, Bus Latency 40h
 Self test 00h (Self test not supported)
 Cache line size 32 Bytes (8 DWords)
 PCI Class Bridge, type PCI to Cardbus
 Subsystem ID 023B1014h Unknown
 Subsystem Vendor 1014h IBM
 System IRQ 11, INT# A
 PCI bus number 2, CardBus bus number 3, Subordinate bus number 5
 CardBus latency B0h
 New Capabilities List Present:
   Power Management Capability
     Current Power State : D0 (Device operational, no power saving)

 Vendor 104Ch Texas Instruments (TI)
 Device AC51h PCI1420 PC card CardBus Controller
 Command 0107h (I/O Access, Memory Access, BusMaster, System Errors)
 Status 0210h (Has Capabilities List, Medium Timing)
 Revision 00h, Header Type 82h, Bus Latency 40h
 Self test 00h (Self test not supported)
 Cache line size 32 Bytes (8 DWords)
 PCI Class Bridge, type PCI to Cardbus
 Subsystem ID 023B1014h Unknown
 Subsystem Vendor 1014h IBM
 System IRQ 11, INT# B
 PCI bus number 2, CardBus bus number 6, Subordinate bus number 8
 CardBus latency B0h
 New Capabilities List Present:
   Power Management Capability
     Current Power State : D0 (Device operational, no power saving)

 Vendor 11C1h Lucent/Agere Systems (Was: AT&T MicroElectronics)
 Device 0449h LT WinModem 56k
 Command 0107h (I/O Access, 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 Simple Communication, type Other
 Subsystem ID 04101468h MiniPCI 56k V.90 Modem
 Subsystem Vendor 1468h Ambit microsystem Corp
 Address 0 is a Memory Address (anywhere in 0-4Gb) : C0201000h
 Address 1 is an I/O Port : 00006440h
 Address 2 is an I/O Port : 00006000h
 System IRQ 11, INT# A
 New Capabilities List Present:
   Power Management Capability
     Supports power state D1
     Current Power State : D0 (Device operational, no power saving)

 Vendor 8086h Intel Corporation
 Device 1031h 82801CAM (ICH3) PRO/100 VE (LOM) 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 42h, Header Type 00h, Bus Latency 42h
 Self test 00h (Self test not supported)
 Cache line size 32 Bytes (8 DWords)
 PCI Class Network, type Ethernet
 Subsystem ID 02091014h PRO/100 VE Network Connection 
 Subsystem Vendor 1014h IBM
 Address 0 is a Memory Address (anywhere in 0-4Gb) : C0200000h
 Address 1 is an I/O Port : 00006400h
 System IRQ 11, INT# A
 New Capabilities List Present:
   Power Management Capability
     Supports power state D1
     Current Power State : D0 (Device operational, no power saving)

ROM PCI IRQ routing table Windows 9x Compatibility Tests....
 ROM IRQ routing table found at F000h:DEB0h
 Table Version 1.0 - OK
 Table size 256 bytes - OK
 Table Checksum 91h - OK
 IRQ's dedicated to PCI : None
 The ROM PCI IRQ routing table appears to be OK.

IRQ Summary: IRQs 11,14,15 are used by PCI devices
Shared IRQs: IRQ 11 is shared by 10 PCI Devices