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I have this motherboard IntelĀ® Desktop Board D975XBX2, for which here is the manual .
The manual says it has:
Eight Serial ATA channels (one device per channel):
Four RAID capable Serial ATA (3.0 Gb/s) connectors (black) via the ICH7DH
Three RAID capable Serial ATA (3.0 Gb/s) connectors (blue) via
the Marvell RAID controller
One RAID capable Serial ATA (3.0 Gb/s) connector via the Marvell
RAID controller, compatible with an external Serial ATA drive
(red)
Now the first four SATA ports work without any problem. But any device which is connected to the lower four SATA ports are not detected by the computer.
What should I do? Even when I go to the BIOS, it doesn't show anything.