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A–6 433611-001 Service Reference Guide, dx7300
Connector Pin Assignments
24-Pin Power (CMT and MT models)
Connector
Pin Signal Pin Signal Pin Signal Pin Signal
1
2
3
4
5
6
+3.3 V
+3.3 V
GND
+5 V
GND
+5 V
7
8
9
10
11
12
GND
POK
+5 Vaux
+12 V
+12 V
+3.3 V
13
14
15
16
17
18
+3.3 V
-12 V
GND
PSON
GND
GND
19
20
21
22
23
24
GND
open
+5 V
+5 V
+5 V
GND
24
12
13
1
24-Pin MicroFit Power (USDT, SFF, and ST models)
Connector
Pin Signal Pin Signal Pin Signal Pin Signal
1
2
3
4
5
6
+5 Vaux
GND
+5 V
+5 V
PS_ON
GND
7
8
9
10
11
12
PWRGD
+3.3 V
+3.3 V
Tach
GND
Fan-CMD
13
14
15
16
17
18
+12 V
+5 V Sense
GND
+5 V
+5 V
+3.3 V
19
20
21
22
23
24
GND
+3.3 Sense
+3.3 V
+3.3 V
GND
-12 V
24
12
13
1
4-Pin Power (for CPU) (MT and CMT models)
Connector and Icon Pin CMT and MT Signal
1GND
2GND
3+12 V CPU
4-12 V CPU