Folks- I'm sure everyone is sitting on the edge of their seats awaiting the latest installment of this saga :) I have good news to report, the machine is up and running quite happily now and seeing the 3Ware card. I think there were two big wins: 1) I updated the BIOS from 1.00.2895 to 1.01.2895, which is available from the Tyan site (http://www.tyan.com/support/html/b_s2895.html) This by itself made zero difference in the behavior of the system. 2) I added pci=bios to the kernel line in grub.conf and now I can see all of the PCI buses and the 3Ware card (one note the 3Ware card was not in the 133MHz PCI-X bus on bridge A -- it does work in that slot just fine -- I moved it back to the original location after a quick test). Without this kernel flag, I do not see the entire pci bus, and as you can see with this enabled all sorts of goodies appear. lspci 00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3) 00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2) 00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2) 00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3) 00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio Controller (rev a2) 00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev a2) 00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev a3) 00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev a3) 00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2) 00:0a.0 Ethernet controller: nVidia Corporation CK804 Ethernet Controller (rev a3) 00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 00:19.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:19.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:19.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:19.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:05.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) 02:00.0 VGA compatible controller: nVidia Corporation NV45GL [Quadro FX 3400/4400] (rev a2) 08:0a.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge (rev 12) 08:0a.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X IOAPIC (rev 01) 08:0b.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge (rev 12) 08:0b.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X IOAPIC (rev 01) 0a:09.0 RAID bus controller: 3ware Inc 3ware Inc 3ware 7xxx/8xxx-series PATA/SATA-RAID (rev 01) 80:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 80:01.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 80:0a.0 Ethernet controller: nVidia Corporation CK804 Ethernet Controller (rev a3) 80:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) Compare this to an earlier email with the machine booted w/o that flag: 00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3) 00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2) 00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2) 00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3) 00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio Controller (rev a2) 00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev a2) 00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev a3) 00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev a3) 00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2) 00:0a.0 Ethernet controller: nVidia Corporation CK804 Ethernet Controller (rev a3) 00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 01:05.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) 02:00.0 VGA compatible controller: nVidia Corporation NV45GL [Quadro FX 3400/4400] (rev a2) 80:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 80:01.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 80:0a.0 Ethernet controller: nVidia Corporation CK804 Ethernet Controller (rev a3) 80:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) Also, as a further test, I reset the BIOS to their default settings and the machine works just fine. It looks a combination of updated BIOS and of course the kernel flags results in a functional machine. Thanks Sean -- Sean O'Connell Office of Engineering Computing oconnell@xxxxxxxxxxxx Jacobs School of Engineering, UCSD 858.534.9716 (49716)