Nvidia nForce 550 MCP User Manual page 19

(5) LAN Port connector: UL1
This connector is standard RJ45 connector for Network
The USBLAN1 support 10M/100Mb/1G b/s data transfer rate
Audio Line-In, Lin -Out, MIC, Surrback, Surround, CEN/LEF Connector : CN1/CN2
(6)
This Connector are 6 phone Jack for LINE-OUT, LINE-IN, MIC, Surrback, Surround,
CEN/LEF
Line-in : (BLUE)
Line-out : (GREEN)
MIC : (PINK)
Surrback : (ORANGE)
CEN/LEF : (BLACKNESS) Audio output to speaker-Center/Subwoofer speaker out
Surround: (GRAY)
.
(7) Floppy drive Connector (34-pin block): FDD
This connector supports the provided floppy drive ribbon cable. After connecting the
single plug end to motherboard, connect the two plugs at other end to the floppy drives.
(8) Primary IDE Connector (40-pin block): IDE1
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.
Audio input to sound chip
Audio output to speaker
Microphone Connector
Audio output to speaker-Rear speaker out
Audio output to speaker-Side speaker out
PS/2
Mouse
PS/2
Keyboard
FDD
Pin 1
Floppy Drive Connector
IDE 1
Pin 1
Primary IDE Connector
i21
Optional
Gigabit
ESATA
LAN
UL1
USB
Line-IN
Surrback
Line-OUT
CEN/LFE
Surround
MIC-IN