American Megatrends MAN-759 manual J4 Floppy Connector Pinout, Twist in Floppy Cable, Pin Use

Step 10 Connect I/O, Continued

J4 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

Chapter 1 Hardware Installation 23