Chapter 4: Motherboard information
4-8
4.3
Connectors
This section describes the internal connectors on the motherboard.
Refer to section “1.4 Rear panel features” for information on the
external (rear panel) connectors.
PSCH-LR
®
PSCH-LR Floppy Disk Drive Connector
FLOPPY1
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
PIN 1
1. Floppy disk drive connector (34-1 pin FLOPPY1)
This connector supports the provided floppy drive ribbon cable. After
connecting one end to the motherboard, connect the other end to the
floppy drive. (Pin 5 is removed to prevent incorrect insertion when
using ribbon cables with pin 5 plug).
PSCH-LR
®
PSCH-LR SMB Connector
BPSMB1
1
SMBCLK
Ground
SMBDA
T
A
+3V
FLOA
TING
2. SMBus connector (6-1 pin BPSMB1)
This connector allows you to connect SMBus (System Management
Bus) devices. Devices communicate with an SMBus host and/or other
SMBus devices using the SMBus interface.