Hey MLV...
Just an idea, possibly your drives are stuck in PIO mode.
If you are running XP:
Click start -> Run and type in devmgmt.msc and push enter.
If running Vista/Windows 7:
type devmgmt.msc into the search programs and files box and push enter.
When device manager appears, expand IDE ATA/ATAPI Controllers.
right click the ATA channel 0, and select the advanced settings tab, are the drives in PIO mode or UDMA mode?
IF they are in pio, uninstall everything under the IDE ATA/ATAPI controllers section and reboot, let Windows reinstall drives, and channels, and check again.
