Only finds one SATA drive on VT8251

I have got a ASUS P5VDC-MX motherboard with VIA VT8251 southbridge and a couple of IDE disks in it.

I thought it run fine. Then I installed two SATA-drives in it and I discovered lack of speed during copying files from IDE disk to

SATA disk. At the time I had version 3.99.9 installed. That version found all drives installed in the box (3 IDE and 2 SATA).

Then I tried installing 4.99.42 on one of the SATA-drives if I'm gonna see some improvments. Now it boots up and runs "fine". No direct hungups or so.

But now it only finds one of the two SATA-drives. Yesterday I tried compiling 4.99.52 but no change.

Digging through the archives I found this thread.

I'm not shure if this relates to the thread about:

"Kernel only sees 1 SATA channel out of 4 - nv520 chip"

From Date: 01/11/2008 01:00:50

However, I cut'n'paste parts from my dmesg running 4.99.42.

viaide0 at pci0 dev 15 function 0
viaide0: VIA Technologies VT8237R SATA Controller (rev. 0x00) # ??? ...regardning what's on the sticker on the chipset I have VT8251
viaide0: bus-master DMA support present
viaide0: primary channel wired to native-PCI mode
viaide0: using ioapic0 pin 21 (irq 10) for native-PCI interrupt
atabus0 at viaide0 channel 0
viaide0: secondary channel wired to native-PCI mode
atabus1 at viaide0 channel 1
viaide1 at pci0 dev 15 function 1
viaide1: VIA Technologies unknown VIA ATA controller #What's this ?
viaide1: bus-master DMA support present
viaide1: primary channel configured to compatibility mode
viaide1: primary channel interrupting at ioapic0 pin 14 (irq 14)
atabus2 at viaide1 channel 0
viaide1: secondary channel configured to compatibility mode
viaide1: secondary channel interrupting at ioapic0 pin 15 (irq 15)
atabus3 at viaide1 channel 1

viaide0 port 0: device present, speed: no negotiated speed # ???
wd0 at atabus0 drive 0: <Maxtor 6L200M0>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 189 GB, 395136 cyl, 16 head, 63 sec, 512 bytes/sect x 398297088 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd0(viaide0:0:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
MAGIC == 0x00
viaide0 port 1: unknown SStatus: 0x00c722ff # Here should the second SATA-drive be. Same type and brand as above???
wd1 at atabus2 drive 0: <IC35L120AVV207-0>
wd1: drive supports 16-sector PIO transfers, LBA48 addressing
wd1: 115 GB, 239340 cyl, 16 head, 63 sec, 512 bytes/sect x 241254720 sectors
wd1: 32-bit data port
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd2 at atabus2 drive 1: <IC35L120AVV207-1>
wd2: drive supports 16-sector PIO transfers, LBA48 addressing
wd2: 115 GB, 239340 cyl, 16 head, 63 sec, 512 bytes/sect x 241254720 sectors
wd2: 32-bit data port
wd2: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd1(viaide1:0:0): using PIO mode 4, DMA mode 2 (using DMA)
wd2(viaide1:0:1): using PIO mode 4, DMA mode 2 (using DMA)
wd3 at atabus3 drive 1: <WDC WD1600AB-00DYA0>
wd3: drive supports 16-sector PIO transfers, LBA48 addressing
wd3: 149 GB, 310101 cyl, 16 head, 63 sec, 512 bytes/sect x 312581808 sectors
wd3: 32-bit data port
wd3: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd3(viaide1:1:1): using PIO mode 4, DMA mode 2 (using DMA)