Plextor PX-850 Manual De Instalación Y Usuario página 48

Section 3. Installing the PX-850SA Internal SATA Drive
6. Plug one connector of the 7-pin SATA interface cable into the SATA
connector (the right-hand connector) on the rear panel of the drive
before you insert the drive into your computer. Then thread the cable
through the front of the open bay and back toward the motherboard.
The drive should slide smoothly into the bay. If it does not, check for
obstructions in the bay and ensure the side rails are attached
properly.
Figure 22: Cable connections for an internal SATA drive
NOTE: Your computer's SATA connection must support the PATA
command set. Some computer motherboards have SATA RAID
(Redundant Array of Independent Discs) chipsets that do not support
the command set used by optical disc drives, or that do not have
BIOS settings to enable IDE/PATA functions. If you are unsure,
consult your motherboard manual or vendor web site for
compatibility, BIOS versions, and BIOS settings
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PX-850 Installation and Users Manual