Floppy Connector - Supermicro X7DBR-8 User Manual

2-8 Floppy Drive, Hard Disk Drive, SIMSO-DIMM IPMI
and SCSI Connections
Note the following when connecting the fl oppy and hard disk drive cables:
• The fl oppy disk drive cable has seven twisted wires.
• A red mark on a wire typically designates the location of pin 1.
• A single fl oppy disk drive ribbon cable has two connectors to provide for two
fl oppy disk drives. The connector with twisted wires always connects to drive
A, and the connector that does not have twisted wires always connects to drive
B.

Floppy Connector

The fl oppy connector is located at
J22. See the table below for pin
defi nitions.
Floppy Drive Connector
Pin Defi nitions (Floppy)
Pin# Defi nition
1 Ground
3 Ground
5 Key
7 Ground
9 Ground
11 Ground
13 Ground
15 Ground
17 Ground
19 Ground
21 Ground
23 Ground
25 Ground
27 Ground
29 Ground
31 Ground
33 Ground
A
A. Floppy Port
2-31
Chapter 2: Installation
Pin # Defi nition
2 FDHDIN
4 Reserved
6 FDEDIN
8 Index
10 Motor Enable
12 Drive Select B
14 Drive Select B
16 Motor Enable
18 DIR
20 STEP
22 Write Data
24 Write Gate
26 Track 00
28 Write Protect
30 Read Data
32 Side 1 Select
34 Diskette