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MegaRUM PCI Motherboard User’s Guide30
Step 10 Connect I/O, Continued
J1 Floppy Connector Pinout
Pin Use Pin Use
1 GND 2 DENSE1
3 GND 4 N/C
5 GND 6 DRATE0
7 GND 8 -INDEX
9 GND 10 -MOTOR0
11 GND 12 -FDSEL1
13 GND 14 -FDSEL0
15 GND 16 -MOTOR1
17 GND 18 DIR
19 GND 20 -
21 GND 22 -WDATA
23 GND 24 -WGATE
25 GND 26 -TRK0
27 GND 28 -WRPROT
29 GND 30 -RDATA
31 GND 32 HDSEL
33 GND 34 DSKCHNG
Twist in Floppy Cable
Floppy B to A Floppy B to A Floppy B to A Floppy B to A
10 to 16 12 to 14 14 to 12 16 to 10
11 to 15 13 to 13 15 to 11
Cont’d