>If possible,Would you please send dmesg full outputs?

It's kind of hard because I have to type them by hand. But I'm glad 
to hear there may be more clues.

What I have sent so far is the PCI stuff:

pcibios: config mechanism [1][x], special cycles [x][x], last bus 2
PCI IRQ Routing Table rev. 1.0 found at 0xfc730, size 128 bytes (6 entries)
PCI Interrupt Router at 000:15:0 (vendor 0x1166 product 0x0200)
pci_inter_fixup: no compatible PCI ICU found: ICU vendor 0x1166 product 0x0200
Warning: unable to fix up PCI interrupt routing
PCI bus #0 is the last bus
[[[stuff about the System BIOS Setting]]]

and the SCSI stuff:

  . . .
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled
pchb0 at pci0 dev 0 function 0
pchb0: vendor 0x1166 product 0x0008 (rev.0.23)
pci1 at pchb0 bus 1
pci1: no spaces enabled!
pchb1 at pci0 dev 0 function 1
pchb1: vendor 0x1166 product 0x0008 (rev.0.01)
pchb2 at pci0 dev 0 function 2
pchb2: vendor 0x1166 product 0x0006 (rev.0.01)
pci2 at pchb2 bus 1
pci2: memory space enabled
pchb3 at pci0 dev 0 function 1
pchb3: vendor 0x1166 product 0x0006 (rev.0.01)
pci3 at pchb3 bus 2
pci3: memory space enabled
ahc1 at pci3 dev 5 function 0: unable to map registers
ahc2 at pci3 dev 5 function 1: unable to map registers
  . . .

If you tell me what other parts would be relevant, I'm happy to send more.

--Paul Hoffman