Jetway Computer NAF91R-G41 - Manual (Page 17)

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(2) ATX 12V Power Connector (8-pin block) : ATX12V1
This is a new defined 8-pin connector that usually comes with ATX Power
Supply. The ATX Power Supply which fully supports AMD AM3 processor must
including this connector for support extra 12V voltage to maintain system power
consumption. Without this connector might cause system unstable because the
power supply can not provide sufficient current for system.
Pin 1
(3) Serial-ATAII Port connector: SATA1/SATA2/SATA3/SATA4
This connector supports the provided Serial ATA3 hard disk cable to connecting
the motherboard with SATA2 hard disk.
Pin No. Defnition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
(4) Primary IDE Connector (40-pin block): IDE
This connector supports the provided IDE hard disk ribbon cable. After
connecting the single plug end to motherboard, connect the two plugs at other
end to your hard disk(s). If you install two hard disks, you must configure the
second drive to Slave mode by setting its jumpers accordingly. Please refer to
the documentation of your hard disk for the jumper settings.
• Two hard disks can be connected to each connector. The first HDD is referred
to as the “Master” and the second HDD is referred to as the “Slave”.
• For performance issues, we strongly suggest you don’t install a CD-ROM or
DVD-ROM drive on the same IDE channel as a hard disk. Otherwise, the system
performance on this channel may drop.