BIOS is at latest level. All SATA connected to MB.

Which logs should I send?

Here are some parts of the dmesg LOG file:

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Probing IDE interface ide0...
hda: PQI IDE Secured DiskOnModule, ATA DISK drive
Probing IDE interface ide1...
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: max request size: 128KiB
hda: 512000 sectors (262 MB) w/0KiB Cache, CHS=1000/16/32
hda: cache flushes not supported
hda: hda1 hda2 hda3
PCI: Enabling device 0000:00:13.2 (0000 -> 0002)
ACPI: PCI Interrupt 0000:00:13.2[A] -> GSI 19 (level, low) -> IRQ 16
ehci_hcd 0000:00:13.2: EHCI Host Controller
ehci_hcd 0000:00:13.2: BIOS handoff failed (160, 01010001) <=============
ehci_hcd 0000:00:13.2: continuing after BIOS bug...
ehci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:13.2: irq 16, io mem 0x30202000
ehci_hcd 0000:00:13.2: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004

sata_sil 0000:00:11.0: version 0.9
ACPI: PCI Interrupt 0000:00:11.0[A] -> GSI 23 (level, low) -> IRQ 17
ata1: SATA max UDMA/100 cmd 0xDC836680 ctl 0xDC83668A bmdma 0xDC836600 irq 17
ata2: SATA max UDMA/100 cmd 0xDC8366C0 ctl 0xDC8366CA bmdma 0xDC836608 irq 17
ata1: dev 0 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3469 86:3c01 87:4003 88:203f
ata1: dev 0 ATA-6, max UDMA/100, 625142448 sectors: LBA48
ata1: dev 0 configured for UDMA/100
scsi0 : sata_sil
ata2: dev 0 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3469 86:3c01 87:4003 88:203f
ata2: dev 0 ATA-6, max UDMA/100, 625142448 sectors: LBA48
ata2: dev 0 configured for UDMA/100
scsi1 : sata_sil
Vendor: ATA Model: WDC WD3200JD-00K Rev: 08.0
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sda: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sda: drive cache: write back
sda: unknown partition table
sd 0:0:0:0: Attached scsi disk sda
Vendor: ATA Model: WDC WD3200JD-00K Rev: 08.0
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sdb: drive cache: write back
sdb: unknown partition table
sd 1:0:0:0: Attached scsi disk sdb
ACPI: PCI Interrupt 0000:00:12.0[A] -> GSI 22 (level, low) -> IRQ 18
ata3: SATA max UDMA/100 cmd 0xDC838480 ctl 0xDC83848A bmdma 0xDC838400 irq 18
ata4: SATA max UDMA/100 cmd 0xDC8384C0 ctl 0xDC8384CA bmdma 0xDC838408 irq 18
ata3: dev 0 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3469 86:3c01 87:4003 88:203f
ata3: dev 0 ATA-6, max UDMA/100, 625142448 sectors: LBA48
ata3: dev 0 configured for UDMA/100
scsi2 : sata_sil
ata4: dev 0 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3469 86:3c01 87:4003 88:203f
ata4: dev 0 ATA-6, max UDMA/100, 625142448 sectors: LBA48
ata4: dev 0 configured for UDMA/100
scsi3 : sata_sil
Vendor: ATA Model: WDC WD3200SD-01K Rev: 08.0
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sdc: drive cache: write back
SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sdc: drive cache: write back
sdc: unknown partition table
sd 2:0:0:0: Attached scsi disk sdc
Vendor: ATA Model: WDC WD3200SD-01K Rev: 08.0
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sdd: drive cache: write back
SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)
SCSI device sdd: drive cache: write back
sdd: unknown partition table
sd 3:0:0:0: Attached scsi disk sdd
md: md0 stopped.
md: bind<sdb>
md: bind<sdc>
md: bind<sdd>
md: bind<sda>
raid5: device sda operational as raid disk 0
raid5: device sdd operational as raid disk 3
raid5: device sdc operational as raid disk 2
raid5: device sdb operational as raid disk 1
raid5: allocated 4203kB for md0
raid5: raid level 5 set md0 active with 4 out of 4 devices, algorithm 2
RAID5 conf printout:
--- rd:4 wd:4 fd:0
disk 0, o:1, dev:sda
disk 1, o:1, dev:sdb
disk 2, o:1, dev:sdc
disk 3, o:1, dev:sdd
kjournald starting. Commit interval 5 seconds
EXT3 FS on dm-4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.