User`s manual
2-26
X6DH8-XG2/X6DHE-XG2 User's Manual
2-8 Floppy/Hard Disk Drive and SCSI Connections
Note the following when connecting the floppy and hard disk drive cables:
• The floppy disk drive cable has seven twisted wires.
• A red mark on a wire typically designates the location of pin 1.
• A single floppy disk drive ribbon cable has two connectors to provide for
two floppy disk drives. The connector with twisted wires always con-
nects to drive A, and the connector that does not have twisted wires
always connects to drive B.
Floppy Connector
The floppy connector is located
at JFDD1. See the table below
for pin definitions.
Pin Number Function
1 GND
3 GND
5 Key
7 GND
9 GND
11 GND
13 GND
15 GND
17 GND
19 GND
21 GND
23 GND
25 GND
27 GND
29 GND
31 GND
33 GND
Pin Number Function
2 FDHDIN
4 Reserved
6 FDEDIN
8 Index-
10 Motor Enable
12 Drive Select B-
14 Drive Select A-
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
Floppy Connector Pin Definitions
GLAN1
®
S
U
P
E
R
X
6D
H
8-X
G
2
GLAN2
D
IM
M
2
B
(B
a
n
k
2
)
D
IM
M
2
A
(B
a
n
k
2
)
D
IM
M
3
B
(B
a
n
k
3
)
D
IM
M
3
A
(B
a
n
k
3
)
D
IM
M
4
B
(B
a
n
k
4
)
D
IM
M
4
A
(B
a
n
k
4
)
D
IM
M
1
A
(B
a
n
k
1
)
D
IM
M
1
B
(B
a
n
k
1
)
Fan1
8-pin
PWR
PWR
SMBus
CPU
Fan1
JF1
F
P
C
o
n
tr
o
l
JD
1
S
P
K
PW LED
JP15
Fan2
OH
3rd PS
PWR
Fault
Detect
CPU Fan2
Fan3
CH Intru
JL1
W
D Enable
IPM
I
IDE1
ID
E
2
F
lo
p
p
y
BIO
S
J
1
8
JPA1
Ultra 320
S
C
S
I C
H
A
U
l
t
r
a
3
2
0
S
C
S
I
C
H
B
F
a
n
4
7902
C
TR
L
SATA0
SATA1
U
SB
2/3
SM
BU
S
Buzzer
P
C
I
-
X
1
1
0
0
M
H
z
Z
C
R
P
C
I
-
X
2
1
0
0
M
H
z
P
C
I
-
X
#
3
1
3
3
M
H
z
WOR
Battery
JPL1
G
LAN
CTLR
RA
GE-X
82546
G
LAN
Enable
P
C
I-
X
#
5
1
3
3
M
H
z
X
8
P
C
I
-
E
p
x
#
6
Super
I/O
(North
Bridge)
JPG
1
VG
A
C
O
M
1
U
S
B
0/1
KB/
M
ouse
Fan5
Fan6
ATX PW
R
4-Pin
PW
R
JP16
24-Pin
Force PWR ON
VG
A
Enable
Fan7
J24
J
P
1
2
Reboot
Option
JP14
JP
13
F
a
n
8
SCSI
C
PU 1
CPU 2
A
la
rm
R
eset
SCSI
Enable
PXH
P
C
I
-
X
#
4
1
3
3
M
H
z
CO
M
2
W
O
L
U
SB
4
PW
R
Fault
LE1
PW
LED
JPA2
JPA
3
DA1
DA2
ICH5R
PXH
L
i
n
d
e
n
h
u
r
s
t
Clear
CMOS
CHB SCSI LED
CHA SCSI LED
(South
Bridge)
E7520
82801ER
SCSI CH A Term
SCSI CH B Term
Floppy